From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 19:32:43 +0200
Subject: Adding upstream version 1:115.7.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 dom/serviceworkers/test/ForceRefreshChild.sys.mjs  |  12 +
 dom/serviceworkers/test/ForceRefreshParent.sys.mjs |  77 ++
 .../test/abrupt_completion_worker.js               |  18 +
 .../test/activate_event_error_worker.js            |   4 +
 dom/serviceworkers/test/async_waituntil_worker.js  |  53 ++
 .../test/blocking_install_event_worker.js          |  22 +
 dom/serviceworkers/test/browser-common.ini         |  52 ++
 dom/serviceworkers/test/browser-dFPI.ini           |   7 +
 dom/serviceworkers/test/browser.ini                |   4 +
 dom/serviceworkers/test/browser_antitracking.js    | 103 +++
 .../test/browser_antitracking_subiframes.js        | 103 +++
 .../test/browser_base_force_refresh.html           |  27 +
 .../test/browser_cached_force_refresh.html         |  59 ++
 .../browser_devtools_serviceworker_interception.js | 264 ++++++
 dom/serviceworkers/test/browser_download.js        |  93 ++
 .../test/browser_download_canceled.js              | 174 ++++
 dom/serviceworkers/test/browser_force_refresh.js   |  87 ++
 dom/serviceworkers/test/browser_head.js            | 318 +++++++
 .../browser_intercepted_channel_process_swap.js    | 110 +++
 .../test/browser_intercepted_worker_script.js      | 102 +++
 ...ser_navigationPreload_read_after_respondWith.js | 115 +++
 .../browser_navigation_fetch_fault_handling.js     | 272 ++++++
 .../test/browser_remote_type_process_swap.js       | 138 +++
 .../test/browser_storage_permission.js             | 297 +++++++
 .../test/browser_storage_recovery.js               | 156 ++++
 .../test/browser_unregister_with_containers.js     | 153 ++++
 .../test/browser_userContextId_openWindow.js       | 162 ++++
 dom/serviceworkers/test/bug1151916_driver.html     |  53 ++
 dom/serviceworkers/test/bug1151916_worker.js       |  15 +
 dom/serviceworkers/test/bug1240436_worker.js       |   2 +
 dom/serviceworkers/test/chrome-common.ini          |  21 +
 dom/serviceworkers/test/chrome-dFPI.ini            |   7 +
 dom/serviceworkers/test/chrome.ini                 |   4 +
 dom/serviceworkers/test/chrome_helpers.js          |  71 ++
 dom/serviceworkers/test/claim_clients/client.html  |  43 +
 dom/serviceworkers/test/claim_oninstall_worker.js  |   7 +
 dom/serviceworkers/test/claim_worker_1.js          |  32 +
 dom/serviceworkers/test/claim_worker_2.js          |  34 +
 dom/serviceworkers/test/close_test.js              |  22 +
 dom/serviceworkers/test/console_monitor.js         |  44 +
 dom/serviceworkers/test/controller/index.html      |  72 ++
 .../test/create_another_sharedWorker.html          |   6 +
 dom/serviceworkers/test/download/window.html       |  46 +
 dom/serviceworkers/test/download/worker.js         |  34 +
 .../download_canceled/page_download_canceled.html  |  58 ++
 .../download_canceled/server-stream-download.sjs   | 133 +++
 .../test/download_canceled/sw_download_canceled.js | 150 ++++
 dom/serviceworkers/test/empty.html                 |   0
 dom/serviceworkers/test/empty.js                   |   0
 dom/serviceworkers/test/empty_with_utils.html      |  13 +
 dom/serviceworkers/test/error_reporting_helpers.js |  73 ++
 dom/serviceworkers/test/eval_worker.js             |   1 +
 .../test/eventsource/eventsource.resource          |  22 +
 .../test/eventsource/eventsource.resource^headers^ |   3 +
 .../eventsource/eventsource_cors_response.html     |  75 ++
 .../eventsource_cors_response_intercept_worker.js  |  30 +
 .../eventsource_mixed_content_cors_response.html   |  75 ++
 ...mixed_content_cors_response_intercept_worker.js |  29 +
 .../eventsource/eventsource_opaque_response.html   |  75 ++
 ...eventsource_opaque_response_intercept_worker.js |  30 +
 .../eventsource/eventsource_register_worker.html   |  27 +
 .../eventsource_synthetic_response.html            |  75 ++
 ...ntsource_synthetic_response_intercept_worker.js |  27 +
 .../test/eventsource/eventsource_worker_helper.js  |  17 +
 dom/serviceworkers/test/fetch.js                   |  33 +
 .../test/fetch/cookie/cookie_test.js               |  11 +
 dom/serviceworkers/test/fetch/cookie/register.html |  19 +
 .../test/fetch/cookie/unregister.html              |  12 +
 dom/serviceworkers/test/fetch/deliver-gzip.sjs     |  21 +
 dom/serviceworkers/test/fetch/fetch_tests.js       | 716 ++++++++++++++++
 .../test/fetch/fetch_worker_script.js              |  28 +
 dom/serviceworkers/test/fetch/hsts/embedder.html   |   7 +
 dom/serviceworkers/test/fetch/hsts/hsts_test.js    |  11 +
 dom/serviceworkers/test/fetch/hsts/image-20px.png  | Bin 0 -> 87 bytes
 dom/serviceworkers/test/fetch/hsts/image-40px.png  | Bin 0 -> 123 bytes
 dom/serviceworkers/test/fetch/hsts/image.html      |  13 +
 dom/serviceworkers/test/fetch/hsts/realindex.html  |   8 +
 dom/serviceworkers/test/fetch/hsts/register.html   |  14 +
 .../test/fetch/hsts/register.html^headers^         |   2 +
 dom/serviceworkers/test/fetch/hsts/unregister.html |  12 +
 .../test/fetch/https/clonedresponse/https_test.js  |  19 +
 .../test/fetch/https/clonedresponse/index.html     |   4 +
 .../test/fetch/https/clonedresponse/register.html  |  14 +
 .../fetch/https/clonedresponse/unregister.html     |  12 +
 dom/serviceworkers/test/fetch/https/https_test.js  |  31 +
 dom/serviceworkers/test/fetch/https/index.html     |   4 +
 dom/serviceworkers/test/fetch/https/register.html  |  20 +
 .../test/fetch/https/unregister.html               |  12 +
 .../test/fetch/imagecache-maxage/image-20px.png    | Bin 0 -> 87 bytes
 .../test/fetch/imagecache-maxage/image-40px.png    | Bin 0 -> 123 bytes
 .../test/fetch/imagecache-maxage/index.html        |  29 +
 .../test/fetch/imagecache-maxage/maxage_test.js    |  45 +
 .../test/fetch/imagecache-maxage/register.html     |  14 +
 .../test/fetch/imagecache-maxage/unregister.html   |  12 +
 .../test/fetch/imagecache/image-20px.png           | Bin 0 -> 87 bytes
 .../test/fetch/imagecache/image-40px.png           | Bin 0 -> 123 bytes
 .../test/fetch/imagecache/imagecache_test.js       |  15 +
 .../test/fetch/imagecache/index.html               |  20 +
 .../test/fetch/imagecache/postmortem.html          |   9 +
 .../test/fetch/imagecache/register.html            |  16 +
 .../test/fetch/imagecache/unregister.html          |  12 +
 .../fetch/importscript-mixedcontent/https_test.js  |  31 +
 .../fetch/importscript-mixedcontent/register.html  |  14 +
 .../importscript-mixedcontent/unregister.html      |  12 +
 dom/serviceworkers/test/fetch/index.html           | 191 +++++
 dom/serviceworkers/test/fetch/interrupt.sjs        |  20 +
 .../test/fetch/origin/https/index-https.sjs        |   8 +
 .../test/fetch/origin/https/origin_test.js         |  29 +
 .../test/fetch/origin/https/realindex.html         |   6 +
 .../fetch/origin/https/realindex.html^headers^     |   1 +
 .../test/fetch/origin/https/register.html          |  14 +
 .../test/fetch/origin/https/unregister.html        |  12 +
 .../test/fetch/origin/index-to-https.sjs           |   8 +
 dom/serviceworkers/test/fetch/origin/index.sjs     |   8 +
 .../test/fetch/origin/origin_test.js               |  38 +
 .../test/fetch/origin/realindex.html               |   6 +
 .../test/fetch/origin/realindex.html^headers^      |   1 +
 dom/serviceworkers/test/fetch/origin/register.html |  14 +
 .../test/fetch/origin/unregister.html              |  12 +
 dom/serviceworkers/test/fetch/plugin/plugins.html  |  43 +
 dom/serviceworkers/test/fetch/plugin/worker.js     |  15 +
 dom/serviceworkers/test/fetch/real-file.txt        |   1 +
 dom/serviceworkers/test/fetch/redirect.sjs         |   4 +
 .../test/fetch/requesturl/index.html               |   7 +
 .../test/fetch/requesturl/redirect.sjs             |   8 +
 .../test/fetch/requesturl/redirector.html          |   2 +
 .../test/fetch/requesturl/register.html            |  14 +
 .../test/fetch/requesturl/requesturl_test.js       |  21 +
 .../test/fetch/requesturl/secret.html              |   5 +
 .../test/fetch/requesturl/unregister.html          |  12 +
 dom/serviceworkers/test/fetch/sandbox/index.html   |   5 +
 .../test/fetch/sandbox/intercepted_index.html      |   5 +
 .../test/fetch/sandbox/register.html               |  14 +
 .../test/fetch/sandbox/sandbox_test.js             |   5 +
 .../test/fetch/sandbox/unregister.html             |  12 +
 .../test/fetch/upgrade-insecure/embedder.html      |  10 +
 .../fetch/upgrade-insecure/embedder.html^headers^  |   1 +
 .../test/fetch/upgrade-insecure/image-20px.png     | Bin 0 -> 87 bytes
 .../test/fetch/upgrade-insecure/image-40px.png     | Bin 0 -> 123 bytes
 .../test/fetch/upgrade-insecure/image.html         |  13 +
 .../test/fetch/upgrade-insecure/realindex.html     |   4 +
 .../test/fetch/upgrade-insecure/register.html      |  14 +
 .../test/fetch/upgrade-insecure/unregister.html    |  12 +
 .../upgrade-insecure/upgrade-insecure_test.js      |  11 +
 dom/serviceworkers/test/fetch_event_worker.js      | 364 ++++++++
 .../test/file_blob_response_worker.js              |  39 +
 dom/serviceworkers/test/file_js_cache.html         |  10 +
 dom/serviceworkers/test/file_js_cache.js           |   5 +
 dom/serviceworkers/test/file_js_cache_cleanup.js   |  16 +
 .../test/file_js_cache_save_after_load.html        |  10 +
 .../test/file_js_cache_save_after_load.js          |  15 +
 .../test/file_js_cache_syntax_error.html           |  10 +
 .../test/file_js_cache_syntax_error.js             |   1 +
 .../test/file_js_cache_with_sri.html               |  12 +
 .../test/file_notification_openWindow.html         |  26 +
 .../test/file_userContextId_openWindow.js          |   3 +
 .../test/force_refresh_browser_worker.js           |  42 +
 dom/serviceworkers/test/force_refresh_worker.js    |  43 +
 dom/serviceworkers/test/gtest/TestReadWrite.cpp    | 952 +++++++++++++++++++++
 dom/serviceworkers/test/gtest/moz.build            |  13 +
 dom/serviceworkers/test/gzip_redirect_worker.js    |  15 +
 dom/serviceworkers/test/header_checker.sjs         |   9 +
 dom/serviceworkers/test/hello.html                 |   9 +
 dom/serviceworkers/test/importscript.sjs           |  11 +
 dom/serviceworkers/test/importscript_worker.js     |  46 +
 .../test/install_event_error_worker.js             |   9 +
 dom/serviceworkers/test/install_event_worker.js    |   3 +
 .../intercepted_channel_process_swap_worker.js     |   7 +
 dom/serviceworkers/test/isolated/README.md         |  19 +
 .../test/isolated/multi-e10s-update/browser.ini    |   7 +
 .../multi-e10s-update/browser_multie10s_update.js  | 147 ++++
 .../multi-e10s-update/file_multie10s_update.html   |  40 +
 .../multi-e10s-update/server_multie10s_update.sjs  | 100 +++
 dom/serviceworkers/test/lazy_worker.js             |   8 +
 dom/serviceworkers/test/lorem_script.js            |   8 +
 .../test/match_all_advanced_worker.js              |   5 +
 .../test/match_all_client/match_all_client_id.html |  31 +
 .../test/match_all_client_id_worker.js             |  28 +
 .../match_all_clients/match_all_controlled.html    |  83 ++
 .../test/match_all_properties_worker.js            |  28 +
 dom/serviceworkers/test/match_all_worker.js        |  10 +
 dom/serviceworkers/test/message_posting_worker.js  |   8 +
 dom/serviceworkers/test/message_receiver.html      |   6 +
 dom/serviceworkers/test/mochitest-common.ini       | 377 ++++++++
 dom/serviceworkers/test/mochitest-dFPI.ini         |  11 +
 dom/serviceworkers/test/mochitest.ini              |  39 +
 .../test/navigationPreload_page.html               |   1 +
 dom/serviceworkers/test/network_with_utils.html    |  14 +
 dom/serviceworkers/test/nofetch_handler_worker.js  |  14 +
 dom/serviceworkers/test/notification/register.html |  11 +
 .../test/notification_constructor_error.js         |   1 +
 dom/serviceworkers/test/notification_get_sw.js     |   0
 .../test/notification_openWindow_worker.js         |  25 +
 .../test/notificationclick-otherwindow.html        |  30 +
 dom/serviceworkers/test/notificationclick.html     |  27 +
 dom/serviceworkers/test/notificationclick.js       |  23 +
 .../test/notificationclick_focus.html              |  28 +
 dom/serviceworkers/test/notificationclick_focus.js |  49 ++
 dom/serviceworkers/test/notificationclose.html     |  37 +
 dom/serviceworkers/test/notificationclose.js       |  31 +
 dom/serviceworkers/test/notify_loaded.js           |   1 +
 dom/serviceworkers/test/onmessageerror_worker.js   |  54 ++
 dom/serviceworkers/test/opaque_intercept_worker.js |  40 +
 dom/serviceworkers/test/openWindow_worker.js       | 178 ++++
 dom/serviceworkers/test/open_window/client.sjs     |  69 ++
 dom/serviceworkers/test/page_post_controlled.html  |  27 +
 dom/serviceworkers/test/parse_error_worker.js      |   2 +
 .../test/pref/fetch_nonexistent_file.html          |  15 +
 .../test/pref/intercept_nonexistent_file_sw.js     |   5 +
 dom/serviceworkers/test/redirect.sjs               |   4 +
 dom/serviceworkers/test/redirect_post.sjs          |  39 +
 dom/serviceworkers/test/redirect_serviceworker.sjs |   7 +
 dom/serviceworkers/test/register_https.html        |  15 +
 .../sanitize/example_check_and_unregister.html     |  22 +
 dom/serviceworkers/test/sanitize/frame.html        |  11 +
 dom/serviceworkers/test/sanitize/register.html     |   9 +
 dom/serviceworkers/test/sanitize_worker.js         |   5 +
 dom/serviceworkers/test/scope/scope_worker.js      |   2 +
 dom/serviceworkers/test/script_file_upload.js      |  15 +
 dom/serviceworkers/test/self_update_worker.sjs     |  42 +
 dom/serviceworkers/test/server_file_upload.sjs     |  22 +
 dom/serviceworkers/test/service_worker.js          |   9 +
 dom/serviceworkers/test/service_worker_client.html |  28 +
 dom/serviceworkers/test/serviceworker.html         |  12 +
 .../test/serviceworker_not_sharedworker.js         |  20 +
 dom/serviceworkers/test/serviceworker_wrapper.js   |  92 ++
 .../test/serviceworkerinfo_iframe.html             |  27 +
 .../test/serviceworkermanager_iframe.html          |  34 +
 .../test/serviceworkerregistrationinfo_iframe.html |  30 +
 dom/serviceworkers/test/sharedWorker_fetch.js      |  30 +
 dom/serviceworkers/test/simple_fetch_worker.js     |  18 +
 dom/serviceworkers/test/simpleregister/index.html  |  51 ++
 dom/serviceworkers/test/simpleregister/ready.html  |  14 +
 .../test/skip_waiting_installed_worker.js          |   6 +
 .../test/skip_waiting_scope/index.html             |  33 +
 .../test/source_message_posting_worker.js          |  16 +
 .../test/storage_recovery_worker.sjs               |  23 +
 dom/serviceworkers/test/streamfilter_server.sjs    |   9 +
 dom/serviceworkers/test/streamfilter_worker.js     |   9 +
 dom/serviceworkers/test/strict_mode_warning.js     |   4 +
 dom/serviceworkers/test/sw_bad_mime_type.js        |   1 +
 .../test/sw_bad_mime_type.js^headers^              |   1 +
 .../test/sw_clients/file_blob_upload_frame.html    |  76 ++
 dom/serviceworkers/test/sw_clients/navigator.html  |  34 +
 dom/serviceworkers/test/sw_clients/refresher.html  |  38 +
 .../test/sw_clients/refresher_cached.html          |  37 +
 .../sw_clients/refresher_cached_compressed.html    | Bin 0 -> 560 bytes
 .../refresher_cached_compressed.html^headers^      |   2 +
 .../test/sw_clients/refresher_compressed.html      | Bin 0 -> 609 bytes
 .../sw_clients/refresher_compressed.html^headers^  |   2 +
 .../test/sw_clients/service_worker_controlled.html |  38 +
 dom/serviceworkers/test/sw_clients/simple.html     |  29 +
 dom/serviceworkers/test/sw_file_upload.js          |  16 +
 .../test/sw_respondwith_serviceworker.js           |  24 +
 dom/serviceworkers/test/sw_storage_not_allow.js    |  33 +
 .../test/sw_with_navigationPreload.js              |  28 +
 .../test/swa/worker_scope_different.js             |   0
 .../test/swa/worker_scope_different.js^headers^    |   1 +
 .../test/swa/worker_scope_different2.js            |   0
 .../test/swa/worker_scope_different2.js^headers^   |   1 +
 .../test/swa/worker_scope_precise.js               |   0
 .../test/swa/worker_scope_precise.js^headers^      |   1 +
 .../test/swa/worker_scope_too_deep.js              |   0
 .../test/swa/worker_scope_too_deep.js^headers^     |   1 +
 .../test/swa/worker_scope_too_narrow.js            |   0
 .../test/swa/worker_scope_too_narrow.js^headers^   |   1 +
 .../test/test_abrupt_completion.html               | 144 ++++
 dom/serviceworkers/test/test_async_waituntil.html  |  91 ++
 dom/serviceworkers/test/test_bad_script_cache.html |  96 +++
 dom/serviceworkers/test/test_bug1151916.html       | 104 +++
 dom/serviceworkers/test/test_bug1240436.html       |  34 +
 dom/serviceworkers/test/test_bug1408734.html       |  52 ++
 dom/serviceworkers/test/test_claim.html            | 171 ++++
 dom/serviceworkers/test/test_claim_oninstall.html  |  77 ++
 dom/serviceworkers/test/test_controller.html       |  83 ++
 dom/serviceworkers/test/test_cookie_fetch.html     |  64 ++
 .../test/test_cross_origin_url_after_redirect.html |  50 ++
 .../test/test_csp_upgrade-insecure_intercept.html  |  55 ++
 .../test/test_devtools_bypass_serviceworker.html   | 107 +++
 .../test_devtools_track_serviceworker_time.html    | 236 +++++
 .../test/test_empty_serviceworker.html             |  46 +
 dom/serviceworkers/test/test_enabled_pref.html     |  55 ++
 dom/serviceworkers/test/test_error_reporting.html  | 241 ++++++
 dom/serviceworkers/test/test_escapedSlashes.html   | 102 +++
 dom/serviceworkers/test/test_eval_allowed.html     |  51 ++
 .../test/test_eval_allowed.html^headers^           |   1 +
 .../test/test_event_listener_leaks.html            |  63 ++
 .../test/test_eventsource_intercept.html           | 103 +++
 dom/serviceworkers/test/test_fetch_event.html      |  75 ++
 .../test/test_fetch_event_with_thirdpartypref.html |  90 ++
 dom/serviceworkers/test/test_fetch_integrity.html  | 228 +++++
 .../test/test_file_blob_response.html              |  78 ++
 dom/serviceworkers/test/test_file_blob_upload.html | 146 ++++
 dom/serviceworkers/test/test_file_upload.html      |  68 ++
 dom/serviceworkers/test/test_force_refresh.html    | 105 +++
 dom/serviceworkers/test/test_gzip_redirect.html    |  88 ++
 .../test/test_hsts_upgrade_intercept.html          |  66 ++
 dom/serviceworkers/test/test_https_fetch.html      |  62 ++
 .../test/test_https_fetch_cloned_response.html     |  56 ++
 .../test/test_https_origin_after_redirect.html     |  57 ++
 .../test_https_origin_after_redirect_cached.html   |  57 ++
 .../test_https_synth_fetch_from_cached_sw.html     |  69 ++
 dom/serviceworkers/test/test_imagecache.html       |  55 ++
 .../test/test_imagecache_max_age.html              |  71 ++
 dom/serviceworkers/test/test_importscript.html     |  74 ++
 .../test/test_importscript_mixedcontent.html       |  53 ++
 dom/serviceworkers/test/test_install_event.html    | 143 ++++
 dom/serviceworkers/test/test_install_event_gc.html | 121 +++
 .../test/test_installation_simple.html             | 208 +++++
 dom/serviceworkers/test/test_match_all.html        |  83 ++
 .../test/test_match_all_advanced.html              | 102 +++
 .../test/test_match_all_client_id.html             |  95 ++
 .../test/test_match_all_client_properties.html     | 101 +++
 .../test/test_navigationPreload_disable_crash.html |  52 ++
 dom/serviceworkers/test/test_navigator.html        |  40 +
 dom/serviceworkers/test/test_nofetch_handler.html  |  57 ++
 .../test/test_not_intercept_plugin.html            |  75 ++
 .../test/test_notification_constructor_error.html  |  51 ++
 dom/serviceworkers/test/test_notification_get.html | 137 +++
 .../test/test_notification_openWindow.html         |  90 ++
 .../test/test_notificationclick-otherwindow.html   |  64 ++
 .../test/test_notificationclick.html               |  65 ++
 .../test/test_notificationclick_focus.html         |  65 ++
 .../test/test_notificationclose.html               |  66 ++
 dom/serviceworkers/test/test_onmessageerror.html   | 128 +++
 dom/serviceworkers/test/test_opaque_intercept.html |  93 ++
 dom/serviceworkers/test/test_openWindow.html       | 111 +++
 .../test/test_origin_after_redirect.html           |  58 ++
 .../test/test_origin_after_redirect_cached.html    |  58 ++
 .../test/test_origin_after_redirect_to_https.html  |  57 ++
 ...test_origin_after_redirect_to_https_cached.html |  57 ++
 dom/serviceworkers/test/test_post_message.html     |  80 ++
 .../test/test_post_message_advanced.html           | 109 +++
 .../test/test_post_message_source.html             |  66 ++
 dom/serviceworkers/test/test_privateBrowsing.html  | 103 +++
 dom/serviceworkers/test/test_register_base.html    |  34 +
 .../test/test_register_https_in_http.html          |  45 +
 .../test/test_sandbox_intercept.html               |  56 ++
 dom/serviceworkers/test/test_sanitize.html         |  86 ++
 dom/serviceworkers/test/test_sanitize_domain.html  |  89 ++
 dom/serviceworkers/test/test_scopes.html           | 143 ++++
 .../test_script_loader_intercepted_js_cache.html   | 224 +++++
 .../test/test_self_update_worker.html              | 136 +++
 .../test/test_service_worker_allowed.html          |  74 ++
 dom/serviceworkers/test/test_serviceworker.html    |  79 ++
 .../test/test_serviceworker_header.html            |  41 +
 .../test/test_serviceworker_interfaces.html        | 116 +++
 .../test/test_serviceworker_interfaces.js          | 567 ++++++++++++
 .../test/test_serviceworker_not_sharedworker.html  |  66 ++
 .../test/test_serviceworkerinfo.xhtml              | 114 +++
 .../test/test_serviceworkermanager.xhtml           |  79 ++
 .../test/test_serviceworkerregistrationinfo.xhtml  | 155 ++++
 dom/serviceworkers/test/test_skip_waiting.html     |  86 ++
 dom/serviceworkers/test/test_streamfilter.html     | 207 +++++
 .../test/test_strict_mode_warning.html             |  42 +
 .../test/test_third_party_iframes.html             | 263 ++++++
 dom/serviceworkers/test/test_unregister.html       | 137 +++
 .../test/test_unresolved_fetch_interception.html   |  95 ++
 dom/serviceworkers/test/test_workerUnregister.html |  81 ++
 dom/serviceworkers/test/test_workerUpdate.html     |  63 ++
 .../test/test_worker_reference_gc_timeout.html     |  76 ++
 .../test/test_workerupdatefoundevent.html          |  91 ++
 dom/serviceworkers/test/test_xslt.html             | 117 +++
 dom/serviceworkers/test/thirdparty/iframe1.html    |  42 +
 dom/serviceworkers/test/thirdparty/iframe2.html    |  14 +
 dom/serviceworkers/test/thirdparty/register.html   |  29 +
 dom/serviceworkers/test/thirdparty/sw.js           |  33 +
 dom/serviceworkers/test/thirdparty/unregister.html |  19 +
 dom/serviceworkers/test/thirdparty/worker.js       |   1 +
 dom/serviceworkers/test/unregister/index.html      |  26 +
 dom/serviceworkers/test/unregister/unregister.html |  21 +
 dom/serviceworkers/test/unresolved_fetch_worker.js |  18 +
 dom/serviceworkers/test/update_worker.sjs          |  12 +
 dom/serviceworkers/test/updatefoundevent.html      |  13 +
 dom/serviceworkers/test/utils.js                   | 136 +++
 dom/serviceworkers/test/window_party_iframes.html  |  18 +
 dom/serviceworkers/test/worker.js                  |   1 +
 dom/serviceworkers/test/worker2.js                 |   1 +
 dom/serviceworkers/test/worker3.js                 |   1 +
 dom/serviceworkers/test/workerUpdate/update.html   |  23 +
 dom/serviceworkers/test/worker_unregister.js       |  22 +
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 create mode 100644 dom/serviceworkers/test/test_worker_reference_gc_timeout.html
 create mode 100644 dom/serviceworkers/test/test_workerupdatefoundevent.html
 create mode 100644 dom/serviceworkers/test/test_xslt.html
 create mode 100644 dom/serviceworkers/test/thirdparty/iframe1.html
 create mode 100644 dom/serviceworkers/test/thirdparty/iframe2.html
 create mode 100644 dom/serviceworkers/test/thirdparty/register.html
 create mode 100644 dom/serviceworkers/test/thirdparty/sw.js
 create mode 100644 dom/serviceworkers/test/thirdparty/unregister.html
 create mode 100644 dom/serviceworkers/test/thirdparty/worker.js
 create mode 100644 dom/serviceworkers/test/unregister/index.html
 create mode 100644 dom/serviceworkers/test/unregister/unregister.html
 create mode 100644 dom/serviceworkers/test/unresolved_fetch_worker.js
 create mode 100644 dom/serviceworkers/test/update_worker.sjs
 create mode 100644 dom/serviceworkers/test/updatefoundevent.html
 create mode 100644 dom/serviceworkers/test/utils.js
 create mode 100644 dom/serviceworkers/test/window_party_iframes.html
 create mode 100644 dom/serviceworkers/test/worker.js
 create mode 100644 dom/serviceworkers/test/worker2.js
 create mode 100644 dom/serviceworkers/test/worker3.js
 create mode 100644 dom/serviceworkers/test/workerUpdate/update.html
 create mode 100644 dom/serviceworkers/test/worker_unregister.js
 create mode 100644 dom/serviceworkers/test/worker_update.js
 create mode 100644 dom/serviceworkers/test/worker_updatefoundevent.js
 create mode 100644 dom/serviceworkers/test/worker_updatefoundevent2.js
 create mode 100644 dom/serviceworkers/test/xslt/test.xml
 create mode 100644 dom/serviceworkers/test/xslt/xslt.sjs
 create mode 100644 dom/serviceworkers/test/xslt_worker.js

(limited to 'dom/serviceworkers/test')

diff --git a/dom/serviceworkers/test/ForceRefreshChild.sys.mjs b/dom/serviceworkers/test/ForceRefreshChild.sys.mjs
new file mode 100644
index 0000000000..b2b965be9e
--- /dev/null
+++ b/dom/serviceworkers/test/ForceRefreshChild.sys.mjs
@@ -0,0 +1,12 @@
+export class ForceRefreshChild extends JSWindowActorChild {
+  constructor() {
+    super();
+  }
+
+  handleEvent(evt) {
+    this.sendAsyncMessage("test:event", {
+      type: evt.type,
+      detail: evt.details,
+    });
+  }
+}
diff --git a/dom/serviceworkers/test/ForceRefreshParent.sys.mjs b/dom/serviceworkers/test/ForceRefreshParent.sys.mjs
new file mode 100644
index 0000000000..cb2d4809e9
--- /dev/null
+++ b/dom/serviceworkers/test/ForceRefreshParent.sys.mjs
@@ -0,0 +1,77 @@
+var maxCacheLoadCount = 3;
+var cachedLoadCount = 0;
+var baseLoadCount = 0;
+var done = false;
+
+export class ForceRefreshParent extends JSWindowActorParent {
+  constructor() {
+    super();
+  }
+
+  receiveMessage(msg) {
+    // if done is called, ignore the msg.
+    if (done) {
+      return;
+    }
+    if (msg.data.type === "base-load") {
+      baseLoadCount += 1;
+      if (cachedLoadCount === maxCacheLoadCount) {
+        ForceRefreshParent.SimpleTest.is(
+          baseLoadCount,
+          2,
+          "cached load should occur before second base load"
+        );
+        done = true;
+        return ForceRefreshParent.done();
+      }
+      if (baseLoadCount !== 1) {
+        ForceRefreshParent.SimpleTest.ok(
+          false,
+          "base load without cached load should only occur once"
+        );
+        done = true;
+        return ForceRefreshParent.done();
+      }
+    } else if (msg.data.type === "base-register") {
+      ForceRefreshParent.SimpleTest.ok(
+        !cachedLoadCount,
+        "cached load should not occur before base register"
+      );
+      ForceRefreshParent.SimpleTest.is(
+        baseLoadCount,
+        1,
+        "register should occur after first base load"
+      );
+    } else if (msg.data.type === "base-sw-ready") {
+      ForceRefreshParent.SimpleTest.ok(
+        !cachedLoadCount,
+        "cached load should not occur before base ready"
+      );
+      ForceRefreshParent.SimpleTest.is(
+        baseLoadCount,
+        1,
+        "ready should occur after first base load"
+      );
+      ForceRefreshParent.refresh();
+    } else if (msg.data.type === "cached-load") {
+      ForceRefreshParent.SimpleTest.ok(
+        cachedLoadCount < maxCacheLoadCount,
+        "cached load should not occur too many times"
+      );
+      ForceRefreshParent.SimpleTest.is(
+        baseLoadCount,
+        1,
+        "cache load occur after first base load"
+      );
+      cachedLoadCount += 1;
+      if (cachedLoadCount < maxCacheLoadCount) {
+        return ForceRefreshParent.refresh();
+      }
+      ForceRefreshParent.forceRefresh();
+    } else if (msg.data.type === "cached-failure") {
+      ForceRefreshParent.SimpleTest.ok(false, "failure: " + msg.data.detail);
+      done = true;
+      ForceRefreshParent.done();
+    }
+  }
+}
diff --git a/dom/serviceworkers/test/abrupt_completion_worker.js b/dom/serviceworkers/test/abrupt_completion_worker.js
new file mode 100644
index 0000000000..7afebc6d45
--- /dev/null
+++ b/dom/serviceworkers/test/abrupt_completion_worker.js
@@ -0,0 +1,18 @@
+function setMessageHandler(response) {
+  onmessage = e => {
+    e.source.postMessage(response);
+  };
+}
+
+setMessageHandler("handler-before-throw");
+
+// importScripts will throw when the ServiceWorker is past the "intalling" state.
+importScripts(`empty.js?${Date.now()}`);
+
+// When importScripts throws an uncaught exception, these calls should never be
+// made and the message handler should remain responding "handler-before-throw".
+setMessageHandler("handler-after-throw");
+
+// There needs to be a fetch handler to avoid the no-fetch optimizaiton,
+// which will skip starting up this worker.
+onfetch = e => e.respondWith(new Response("handler-after-throw"));
diff --git a/dom/serviceworkers/test/activate_event_error_worker.js b/dom/serviceworkers/test/activate_event_error_worker.js
new file mode 100644
index 0000000000..a875f27d92
--- /dev/null
+++ b/dom/serviceworkers/test/activate_event_error_worker.js
@@ -0,0 +1,4 @@
+// Worker that errors on receiving an activate event.
+onactivate = function (e) {
+  undefined.doSomething;
+};
diff --git a/dom/serviceworkers/test/async_waituntil_worker.js b/dom/serviceworkers/test/async_waituntil_worker.js
new file mode 100644
index 0000000000..f830fc6f83
--- /dev/null
+++ b/dom/serviceworkers/test/async_waituntil_worker.js
@@ -0,0 +1,53 @@
+var keepAlivePromise;
+var resolvePromise;
+var result = "Failed";
+
+onactivate = function (event) {
+  event.waitUntil(clients.claim());
+};
+
+onmessage = function (event) {
+  if (event.data === "Start") {
+    event.waitUntil(Promise.reject());
+
+    keepAlivePromise = new Promise(function (resolve, reject) {
+      resolvePromise = resolve;
+    });
+
+    result = "Success";
+    event.waitUntil(keepAlivePromise);
+    event.source.postMessage("Started");
+  } else if (event.data === "Result") {
+    event.source.postMessage(result);
+    if (resolvePromise !== undefined) {
+      resolvePromise();
+    }
+  }
+};
+
+addEventListener("fetch", e => {
+  let respondWithPromise = new Promise(function (res, rej) {
+    setTimeout(() => {
+      res(new Response("ok"));
+    }, 0);
+  });
+  e.respondWith(respondWithPromise);
+  // Test that waitUntil can be called in the promise handler of the existing
+  // lifetime extension promise.
+  respondWithPromise.then(() => {
+    e.waitUntil(
+      clients.matchAll().then(cls => {
+        dump(`matchAll returned ${cls.length} client(s) with URLs:\n`);
+        cls.forEach(cl => {
+          dump(`${cl.url}\n`);
+        });
+
+        if (cls.length != 1) {
+          dump("ERROR: no controlled clients.\n");
+        }
+        client = cls[0];
+        client.postMessage("Done");
+      })
+    );
+  });
+});
diff --git a/dom/serviceworkers/test/blocking_install_event_worker.js b/dom/serviceworkers/test/blocking_install_event_worker.js
new file mode 100644
index 0000000000..8ca6201316
--- /dev/null
+++ b/dom/serviceworkers/test/blocking_install_event_worker.js
@@ -0,0 +1,22 @@
+function postMessageToTest(msg) {
+  return clients.matchAll({ includeUncontrolled: true }).then(list => {
+    for (var client of list) {
+      if (client.url.endsWith("test_install_event_gc.html")) {
+        client.postMessage(msg);
+        break;
+      }
+    }
+  });
+}
+
+addEventListener("install", evt => {
+  // This must be a simple promise to trigger the CC failure.
+  evt.waitUntil(new Promise(function () {}));
+  postMessageToTest({ type: "INSTALL_EVENT" });
+});
+
+addEventListener("message", evt => {
+  if (evt.data.type === "ping") {
+    postMessageToTest({ type: "pong" });
+  }
+});
diff --git a/dom/serviceworkers/test/browser-common.ini b/dom/serviceworkers/test/browser-common.ini
new file mode 100644
index 0000000000..e1c8cfbc48
--- /dev/null
+++ b/dom/serviceworkers/test/browser-common.ini
@@ -0,0 +1,52 @@
+[DEFAULT]
+support-files =
+  browser_base_force_refresh.html
+  browser_cached_force_refresh.html
+  browser_head.js
+  download/window.html
+  download/worker.js
+  download_canceled/page_download_canceled.html
+  download_canceled/server-stream-download.sjs
+  download_canceled/sw_download_canceled.js
+  fetch.js
+  file_userContextId_openWindow.js
+  force_refresh_browser_worker.js
+  ForceRefreshChild.sys.mjs
+  ForceRefreshParent.sys.mjs
+  empty.html
+  empty_with_utils.html
+  empty.js
+  intercepted_channel_process_swap_worker.js
+  navigationPreload_page.html
+  network_with_utils.html
+  page_post_controlled.html
+  redirect.sjs
+  simple_fetch_worker.js
+  storage_recovery_worker.sjs
+  sw_respondwith_serviceworker.js
+  sw_with_navigationPreload.js
+  utils.js
+
+[browser_antitracking.js]
+[browser_antitracking_subiframes.js]
+[browser_devtools_serviceworker_interception.js]
+skip-if = serviceworker_e10s
+[browser_force_refresh.js]
+skip-if = verify # Bug 1603340
+[browser_download.js]
+[browser_download_canceled.js]
+skip-if = verify
+[browser_intercepted_channel_process_swap.js]
+skip-if = !fission
+[browser_intercepted_worker_script.js]
+[browser_navigation_fetch_fault_handling.js]
+skip-if =
+  os == "win" && os_version == "6.1" # Skip on Azure - frequent failure
+[browser_navigationPreload_read_after_respondWith.js]
+[browser_remote_type_process_swap.js]
+[browser_storage_permission.js]
+skip-if = true # Crashes: @ mozilla::dom::ServiceWorkerManagerService::PropagateUnregister(unsigned long, mozilla::ipc::PrincipalInfo const&, nsTSubstring<char16_t> const&), #Bug 1578337
+[browser_storage_recovery.js]
+[browser_unregister_with_containers.js]
+[browser_userContextId_openWindow.js]
+skip-if = true # See bug 1769437.
diff --git a/dom/serviceworkers/test/browser-dFPI.ini b/dom/serviceworkers/test/browser-dFPI.ini
new file mode 100644
index 0000000000..c327062f16
--- /dev/null
+++ b/dom/serviceworkers/test/browser-dFPI.ini
@@ -0,0 +1,7 @@
+[DEFAULT]
+# Enable dFPI(cookieBehavior 5) for service worker tests.
+prefs =
+  network.cookie.cookieBehavior=5
+dupe-manifest = true
+
+[include:browser-common.ini]
diff --git a/dom/serviceworkers/test/browser.ini b/dom/serviceworkers/test/browser.ini
new file mode 100644
index 0000000000..2a7162e9ed
--- /dev/null
+++ b/dom/serviceworkers/test/browser.ini
@@ -0,0 +1,4 @@
+[DEFAULT]
+dupe-manifest = true
+
+[include:browser-common.ini]
diff --git a/dom/serviceworkers/test/browser_antitracking.js b/dom/serviceworkers/test/browser_antitracking.js
new file mode 100644
index 0000000000..d5af4a3f41
--- /dev/null
+++ b/dom/serviceworkers/test/browser_antitracking.js
@@ -0,0 +1,103 @@
+const BEHAVIOR_ACCEPT = Ci.nsICookieService.BEHAVIOR_ACCEPT;
+const BEHAVIOR_REJECT_TRACKER = Ci.nsICookieService.BEHAVIOR_REJECT_TRACKER;
+
+let { UrlClassifierTestUtils } = ChromeUtils.importESModule(
+  "resource://testing-common/UrlClassifierTestUtils.sys.mjs"
+);
+
+const TOP_DOMAIN = "http://mochi.test:8888/";
+const SW_DOMAIN = "https://tracking.example.org/";
+
+const TOP_TEST_ROOT = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content/",
+  TOP_DOMAIN
+);
+const SW_TEST_ROOT = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content/",
+  SW_DOMAIN
+);
+
+const TOP_EMPTY_PAGE = `${TOP_TEST_ROOT}empty_with_utils.html`;
+const SW_REGISTER_PAGE = `${SW_TEST_ROOT}empty_with_utils.html`;
+const SW_IFRAME_PAGE = `${SW_TEST_ROOT}page_post_controlled.html`;
+// An empty script suffices for our SW needs; it's by definition no-fetch.
+const SW_REL_SW_SCRIPT = "empty.js";
+
+/**
+ * Set up a no-fetch-optimized ServiceWorker on a domain that will be covered by
+ * tracking protection (but is not yet).  Once the SW is installed, activate TP
+ * and create a tab that embeds that tracking-site in an iframe.
+ */
+add_task(async function () {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["network.cookie.cookieBehavior", BEHAVIOR_ACCEPT],
+    ],
+  });
+
+  // Open the top-level page.
+  info("Opening a new tab: " + SW_REGISTER_PAGE);
+  let topTab = await BrowserTestUtils.openNewForegroundTab({
+    gBrowser,
+    opening: SW_REGISTER_PAGE,
+  });
+
+  // ## Install SW
+  info("Installing SW");
+  await SpecialPowers.spawn(
+    topTab.linkedBrowser,
+    [{ sw: SW_REL_SW_SCRIPT }],
+    async function ({ sw }) {
+      // Waive the xray to use the content utils.js script functions.
+      await content.wrappedJSObject.registerAndWaitForActive(sw);
+    }
+  );
+
+  // Enable Anti-tracking.
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["privacy.trackingprotection.enabled", false],
+      ["privacy.trackingprotection.pbmode.enabled", false],
+      ["privacy.trackingprotection.annotate_channels", true],
+      ["network.cookie.cookieBehavior", BEHAVIOR_REJECT_TRACKER],
+    ],
+  });
+  await UrlClassifierTestUtils.addTestTrackers();
+
+  // Open the top-level URL.
+  info("Loading a new top-level URL: " + TOP_EMPTY_PAGE);
+  let browserLoadedPromise = BrowserTestUtils.browserLoaded(
+    topTab.linkedBrowser
+  );
+  BrowserTestUtils.loadURIString(topTab.linkedBrowser, TOP_EMPTY_PAGE);
+  await browserLoadedPromise;
+
+  // Create Iframe in the top-level page and verify its state.
+  let { controlled } = await SpecialPowers.spawn(
+    topTab.linkedBrowser,
+    [{ url: SW_IFRAME_PAGE }],
+    async function ({ url }) {
+      const payload =
+        await content.wrappedJSObject.createIframeAndWaitForMessage(url);
+      return payload;
+    }
+  );
+
+  ok(!controlled, "Should not be controlled!");
+
+  // ## Cleanup
+  info("Loading the SW unregister page: " + SW_REGISTER_PAGE);
+  browserLoadedPromise = BrowserTestUtils.browserLoaded(topTab.linkedBrowser);
+  BrowserTestUtils.loadURIString(topTab.linkedBrowser, SW_REGISTER_PAGE);
+  await browserLoadedPromise;
+
+  await SpecialPowers.spawn(topTab.linkedBrowser, [], async function () {
+    await content.wrappedJSObject.unregisterAll();
+  });
+
+  // Close the testing tab.
+  BrowserTestUtils.removeTab(topTab);
+});
diff --git a/dom/serviceworkers/test/browser_antitracking_subiframes.js b/dom/serviceworkers/test/browser_antitracking_subiframes.js
new file mode 100644
index 0000000000..aa3b2b0424
--- /dev/null
+++ b/dom/serviceworkers/test/browser_antitracking_subiframes.js
@@ -0,0 +1,103 @@
+const BEHAVIOR_REJECT_TRACKER = Ci.nsICookieService.BEHAVIOR_REJECT_TRACKER;
+
+const TOP_DOMAIN = "http://mochi.test:8888/";
+const SW_DOMAIN = "https://example.org/";
+
+const TOP_TEST_ROOT = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content/",
+  TOP_DOMAIN
+);
+const SW_TEST_ROOT = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content/",
+  SW_DOMAIN
+);
+
+const TOP_EMPTY_PAGE = `${TOP_TEST_ROOT}empty_with_utils.html`;
+const SW_REGISTER_PAGE = `${SW_TEST_ROOT}empty_with_utils.html`;
+const SW_IFRAME_PAGE = `${SW_TEST_ROOT}page_post_controlled.html`;
+const SW_REL_SW_SCRIPT = "empty.js";
+
+/**
+ * Set up a ServiceWorker on a domain that will be used as 3rd party iframe.
+ * That 3rd party frame should be controlled by the ServiceWorker.
+ * After that, we open a second iframe into the first one. That should not be
+ * controlled.
+ */
+add_task(async function () {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["network.cookie.cookieBehavior", BEHAVIOR_REJECT_TRACKER],
+    ],
+  });
+
+  // Open the top-level page.
+  info("Opening a new tab: " + SW_REGISTER_PAGE);
+  let topTab = await BrowserTestUtils.openNewForegroundTab({
+    gBrowser,
+    opening: SW_REGISTER_PAGE,
+  });
+
+  // Install SW
+  info("Registering a SW: " + SW_REL_SW_SCRIPT);
+  await SpecialPowers.spawn(
+    topTab.linkedBrowser,
+    [{ sw: SW_REL_SW_SCRIPT }],
+    async function ({ sw }) {
+      // Waive the xray to use the content utils.js script functions.
+      await content.wrappedJSObject.registerAndWaitForActive(sw);
+      // User interaction
+      content.document.userInteractionForTesting();
+    }
+  );
+
+  info("Loading a new top-level URL: " + TOP_EMPTY_PAGE);
+  let browserLoadedPromise = BrowserTestUtils.browserLoaded(
+    topTab.linkedBrowser
+  );
+  BrowserTestUtils.loadURIString(topTab.linkedBrowser, TOP_EMPTY_PAGE);
+  await browserLoadedPromise;
+
+  // Create Iframe in the top-level page and verify its state.
+  info("Creating iframe and checking if controlled");
+  let { controlled } = await SpecialPowers.spawn(
+    topTab.linkedBrowser,
+    [{ url: SW_IFRAME_PAGE }],
+    async function ({ url }) {
+      content.document.userInteractionForTesting();
+      const payload =
+        await content.wrappedJSObject.createIframeAndWaitForMessage(url);
+      return payload;
+    }
+  );
+
+  ok(controlled, "Should be controlled!");
+
+  // Create a nested Iframe.
+  info("Creating nested-iframe and checking if controlled");
+  let { nested_controlled } = await SpecialPowers.spawn(
+    topTab.linkedBrowser,
+    [{ url: SW_IFRAME_PAGE }],
+    async function ({ url }) {
+      const payload =
+        await content.wrappedJSObject.createNestedIframeAndWaitForMessage(url);
+      return payload;
+    }
+  );
+
+  ok(!nested_controlled, "Should not be controlled!");
+
+  info("Loading the SW unregister page: " + SW_REGISTER_PAGE);
+  browserLoadedPromise = BrowserTestUtils.browserLoaded(topTab.linkedBrowser);
+  BrowserTestUtils.loadURIString(topTab.linkedBrowser, SW_REGISTER_PAGE);
+  await browserLoadedPromise;
+
+  await SpecialPowers.spawn(topTab.linkedBrowser, [], async function () {
+    await content.wrappedJSObject.unregisterAll();
+  });
+
+  // Close the testing tab.
+  BrowserTestUtils.removeTab(topTab);
+});
diff --git a/dom/serviceworkers/test/browser_base_force_refresh.html b/dom/serviceworkers/test/browser_base_force_refresh.html
new file mode 100644
index 0000000000..1c3d02d42f
--- /dev/null
+++ b/dom/serviceworkers/test/browser_base_force_refresh.html
@@ -0,0 +1,27 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+</head>
+<body>
+<script type="text/javascript">
+addEventListener('load', function(event) {
+  navigator.serviceWorker.register('force_refresh_browser_worker.js').then(function(swr) {
+    if (!swr) {
+      return;
+    }
+    window.dispatchEvent(new Event("base-register", { bubbles: true }));
+  });
+
+  navigator.serviceWorker.ready.then(function() {
+    window.dispatchEvent(new Event("base-sw-ready", { bubbles: true }));
+  });
+
+  window.dispatchEvent(new Event("base-load", { bubbles: true }));
+});
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/browser_cached_force_refresh.html b/dom/serviceworkers/test/browser_cached_force_refresh.html
new file mode 100644
index 0000000000..faf2ee7a83
--- /dev/null
+++ b/dom/serviceworkers/test/browser_cached_force_refresh.html
@@ -0,0 +1,59 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+</head>
+<body>
+<script type="text/javascript">
+function ok(exp, msg) {
+  if (!exp) {
+    throw(msg);
+  }
+}
+
+function is(actual, expected, msg) {
+  if (actual !== expected) {
+    throw('got "' + actual + '", but expected "' + expected + '" - ' + msg);
+  }
+}
+
+function fail(err) {
+  window.dispatchEvent(new Event("cached-failure", { bubbles: true, detail: err }));
+}
+
+function getUncontrolledClients(sw) {
+  return new Promise(function(resolve, reject) {
+    navigator.serviceWorker.addEventListener('message', function onMsg(evt) {
+      if (evt.data.type === 'CLIENTS') {
+        navigator.serviceWorker.removeEventListener('message', onMsg);
+        resolve(evt.data.detail);
+      }
+    });
+    sw.postMessage({ type: 'GET_UNCONTROLLED_CLIENTS' })
+  });
+}
+
+addEventListener('load', function(event) {
+  if (!navigator.serviceWorker.controller) {
+    return fail(window.location.href + ' is not controlled!');
+  }
+
+  getUncontrolledClients(navigator.serviceWorker.controller)
+    .then(function(clientList) {
+      is(clientList.length, 1, 'should only have one client');
+      is(clientList[0].url, window.location.href,
+         'client url should match current window');
+      is(clientList[0].frameType, 'top-level',
+         'client should be a top-level window');
+      window.dispatchEvent(new Event('cached-load', { bubbles: true }));
+    })
+    .catch(function(err) {
+      fail(err);
+    });
+});
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/browser_devtools_serviceworker_interception.js b/dom/serviceworkers/test/browser_devtools_serviceworker_interception.js
new file mode 100644
index 0000000000..fc31159116
--- /dev/null
+++ b/dom/serviceworkers/test/browser_devtools_serviceworker_interception.js
@@ -0,0 +1,264 @@
+"use strict";
+
+const BASE_URI = "http://mochi.test:8888/browser/dom/serviceworkers/test/";
+const emptyDoc = BASE_URI + "empty.html";
+const fakeDoc = BASE_URI + "fake.html";
+const helloDoc = BASE_URI + "hello.html";
+
+const CROSS_URI = "http://example.com/browser/dom/serviceworkers/test/";
+const crossRedirect = CROSS_URI + "redirect";
+const crossHelloDoc = CROSS_URI + "hello.html";
+
+const sw = BASE_URI + "fetch.js";
+
+async function checkObserver(aInput) {
+  let interceptedChannel = null;
+
+  // We always get two channels which receive the "http-on-stop-request"
+  // notification if the service worker hijacks the request and respondWith an
+  // another fetch. One is for the "outer" window request when the other one is
+  // for the "inner" service worker request. Therefore, distinguish them by the
+  // order.
+  let waitForSecondOnStopRequest = aInput.intercepted;
+
+  let promiseResolve;
+
+  function observer(aSubject) {
+    let channel = aSubject.QueryInterface(Ci.nsIChannel);
+    // Since we cannot make sure that the network event triggered by the fetch()
+    // in this testcase is the very next event processed by ObserverService, we
+    // have to wait until we catch the one we want.
+    if (!channel.URI.spec.includes(aInput.expectedURL)) {
+      return;
+    }
+
+    if (waitForSecondOnStopRequest) {
+      waitForSecondOnStopRequest = false;
+      return;
+    }
+
+    // Wait for the service worker to intercept the request if it's expected to
+    // be intercepted
+    if (aInput.intercepted && interceptedChannel === null) {
+      return;
+    } else if (interceptedChannel) {
+      ok(
+        aInput.intercepted,
+        "Service worker intercepted the channel as expected"
+      );
+    } else {
+      ok(!aInput.intercepted, "The channel doesn't be intercepted");
+    }
+
+    var tc = interceptedChannel
+      ? interceptedChannel.QueryInterface(Ci.nsITimedChannel)
+      : aSubject.QueryInterface(Ci.nsITimedChannel);
+
+    // Check service worker related timings.
+    var serviceWorkerTimings = [
+      {
+        start: tc.launchServiceWorkerStartTime,
+        end: tc.launchServiceWorkerEndTime,
+      },
+      {
+        start: tc.dispatchFetchEventStartTime,
+        end: tc.dispatchFetchEventEndTime,
+      },
+      { start: tc.handleFetchEventStartTime, end: tc.handleFetchEventEndTime },
+    ];
+    if (!aInput.swPresent) {
+      serviceWorkerTimings.forEach(aTimings => {
+        is(aTimings.start, 0, "SW timings should be 0.");
+        is(aTimings.end, 0, "SW timings should be 0.");
+      });
+    }
+
+    // Check network related timings.
+    var networkTimings = [
+      tc.domainLookupStartTime,
+      tc.domainLookupEndTime,
+      tc.connectStartTime,
+      tc.connectEndTime,
+      tc.requestStartTime,
+      tc.responseStartTime,
+      tc.responseEndTime,
+    ];
+    if (aInput.fetch) {
+      networkTimings.reduce((aPreviousTiming, aCurrentTiming) => {
+        ok(aPreviousTiming <= aCurrentTiming, "Checking network timings");
+        return aCurrentTiming;
+      });
+    } else {
+      networkTimings.forEach(aTiming =>
+        is(aTiming, 0, "Network timings should be 0.")
+      );
+    }
+
+    interceptedChannel = null;
+    Services.obs.removeObserver(observer, topic);
+    promiseResolve();
+  }
+
+  function addInterceptedChannel(aSubject) {
+    let channel = aSubject.QueryInterface(Ci.nsIChannel);
+    if (!channel.URI.spec.includes(aInput.url)) {
+      return;
+    }
+
+    // Hold the interceptedChannel until checking timing information.
+    // Note: It's a interceptedChannel in the type of httpChannel
+    interceptedChannel = channel;
+    Services.obs.removeObserver(addInterceptedChannel, topic_SW);
+  }
+
+  const topic = "http-on-stop-request";
+  const topic_SW = "service-worker-synthesized-response";
+
+  Services.obs.addObserver(observer, topic);
+  if (aInput.intercepted) {
+    Services.obs.addObserver(addInterceptedChannel, topic_SW);
+  }
+
+  await new Promise(resolve => {
+    promiseResolve = resolve;
+  });
+}
+
+async function contentFetch(aURL) {
+  if (aURL.includes("redirect")) {
+    await content.window.fetch(aURL, { mode: "no-cors" });
+    return;
+  }
+  await content.window.fetch(aURL);
+}
+
+// The observer topics are fired in the parent process in parent-intercept
+// and the content process in child-intercept. This function will handle running
+// the check in the correct process. Note that it will block until the observers
+// are notified.
+async function fetchAndCheckObservers(
+  aFetchBrowser,
+  aObserverBrowser,
+  aTestCase
+) {
+  let promise = null;
+
+  promise = checkObserver(aTestCase);
+
+  await SpecialPowers.spawn(aFetchBrowser, [aTestCase.url], contentFetch);
+  await promise;
+}
+
+async function registerSWAndWaitForActive(aServiceWorker) {
+  let swr = await content.navigator.serviceWorker.register(aServiceWorker, {
+    scope: "empty.html",
+  });
+  await new Promise(resolve => {
+    let worker = swr.installing || swr.waiting || swr.active;
+    if (worker.state === "activated") {
+      return resolve();
+    }
+
+    worker.addEventListener("statechange", () => {
+      if (worker.state === "activated") {
+        return resolve();
+      }
+    });
+  });
+
+  await new Promise(resolve => {
+    if (content.navigator.serviceWorker.controller) {
+      return resolve();
+    }
+
+    content.navigator.serviceWorker.addEventListener(
+      "controllerchange",
+      resolve,
+      { once: true }
+    );
+  });
+}
+
+async function unregisterSW() {
+  let swr = await content.navigator.serviceWorker.getRegistration();
+  swr.unregister();
+}
+
+add_task(async function test_serivce_worker_interception() {
+  info("Setting the prefs to having e10s enabled");
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      // Make sure observer and testing function run in the same process
+      ["dom.ipc.processCount", 1],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ],
+  });
+
+  waitForExplicitFinish();
+
+  info("Open the tab");
+  let tab = BrowserTestUtils.addTab(gBrowser, emptyDoc);
+  let tabBrowser = gBrowser.getBrowserForTab(tab);
+  await BrowserTestUtils.browserLoaded(tabBrowser);
+
+  info("Open the tab for observing");
+  let tab_observer = BrowserTestUtils.addTab(gBrowser, emptyDoc);
+  let tabBrowser_observer = gBrowser.getBrowserForTab(tab_observer);
+  await BrowserTestUtils.browserLoaded(tabBrowser_observer);
+
+  let testcases = [
+    {
+      url: helloDoc,
+      expectedURL: helloDoc,
+      swPresent: false,
+      intercepted: false,
+      fetch: true,
+    },
+    {
+      url: fakeDoc,
+      expectedURL: helloDoc,
+      swPresent: true,
+      intercepted: true,
+      fetch: false, // should use HTTP cache
+    },
+    {
+      // Bypass http cache
+      url: helloDoc + "?ForBypassingHttpCache=" + Date.now(),
+      expectedURL: helloDoc,
+      swPresent: true,
+      intercepted: false,
+      fetch: true,
+    },
+    {
+      // no-cors mode redirect to no-cors mode (trigger internal redirect)
+      url: crossRedirect + "?url=" + crossHelloDoc + "&mode=no-cors",
+      expectedURL: crossHelloDoc,
+      swPresent: true,
+      redirect: "hello.html",
+      intercepted: true,
+      fetch: true,
+    },
+  ];
+
+  info("Test 1: Verify simple fetch");
+  await fetchAndCheckObservers(tabBrowser, tabBrowser_observer, testcases[0]);
+
+  info("Register a service worker");
+  await SpecialPowers.spawn(tabBrowser, [sw], registerSWAndWaitForActive);
+
+  info("Test 2: Verify simple hijack");
+  await fetchAndCheckObservers(tabBrowser, tabBrowser_observer, testcases[1]);
+
+  info("Test 3: Verify fetch without using http cache");
+  await fetchAndCheckObservers(tabBrowser, tabBrowser_observer, testcases[2]);
+
+  info("Test 4: make a internal redirect");
+  await fetchAndCheckObservers(tabBrowser, tabBrowser_observer, testcases[3]);
+
+  info("Clean up");
+  await SpecialPowers.spawn(tabBrowser, [undefined], unregisterSW);
+
+  gBrowser.removeTab(tab);
+  gBrowser.removeTab(tab_observer);
+});
diff --git a/dom/serviceworkers/test/browser_download.js b/dom/serviceworkers/test/browser_download.js
new file mode 100644
index 0000000000..080d27e2ac
--- /dev/null
+++ b/dom/serviceworkers/test/browser_download.js
@@ -0,0 +1,93 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+var gTestRoot = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content/",
+  "http://mochi.test:8888/"
+);
+
+function getFile(aFilename) {
+  if (aFilename.startsWith("file:")) {
+    var url = NetUtil.newURI(aFilename).QueryInterface(Ci.nsIFileURL);
+    return url.file.clone();
+  }
+
+  var file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+  file.initWithPath(aFilename);
+  return file;
+}
+
+function windowObserver(win, topic) {
+  if (topic !== "domwindowopened") {
+    return;
+  }
+
+  win.addEventListener(
+    "load",
+    function () {
+      if (
+        win.document.documentURI ===
+        "chrome://mozapps/content/downloads/unknownContentType.xhtml"
+      ) {
+        executeSoon(function () {
+          let dialog = win.document.getElementById("unknownContentType");
+          let button = dialog.getButton("accept");
+          button.disabled = false;
+          dialog.acceptDialog();
+        });
+      }
+    },
+    { once: true }
+  );
+}
+
+function test() {
+  waitForExplicitFinish();
+
+  Services.ww.registerNotification(windowObserver);
+
+  SpecialPowers.pushPrefEnv(
+    {
+      set: [
+        ["dom.serviceWorkers.enabled", true],
+        ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+        ["dom.serviceWorkers.testing.enabled", true],
+      ],
+    },
+    function () {
+      var url = gTestRoot + "download/window.html";
+      var tab = BrowserTestUtils.addTab(gBrowser);
+      gBrowser.selectedTab = tab;
+
+      Downloads.getList(Downloads.ALL)
+        .then(function (downloadList) {
+          var downloadListener;
+
+          function downloadVerifier(aDownload) {
+            if (aDownload.succeeded) {
+              var file = getFile(aDownload.target.path);
+              ok(file.exists(), "download completed");
+              is(file.fileSize, 33, "downloaded file has correct size");
+              file.remove(false);
+              downloadList.remove(aDownload).catch(console.error);
+              downloadList.removeView(downloadListener).catch(console.error);
+              gBrowser.removeTab(tab);
+              Services.ww.unregisterNotification(windowObserver);
+
+              executeSoon(finish);
+            }
+          }
+
+          downloadListener = {
+            onDownloadAdded: downloadVerifier,
+            onDownloadChanged: downloadVerifier,
+          };
+
+          return downloadList.addView(downloadListener);
+        })
+        .then(function () {
+          BrowserTestUtils.loadURIString(gBrowser, url);
+        });
+    }
+  );
+}
diff --git a/dom/serviceworkers/test/browser_download_canceled.js b/dom/serviceworkers/test/browser_download_canceled.js
new file mode 100644
index 0000000000..2deb8389ef
--- /dev/null
+++ b/dom/serviceworkers/test/browser_download_canceled.js
@@ -0,0 +1,174 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/*
+ * Test cancellation of a download in order to test edge-cases related to
+ * channel diversion.  Channel diversion occurs in cases of file (and PSM cert)
+ * downloads where we realize in the child that we really want to consume the
+ * channel data in the parent.  For data "sourced" by the parent, like network
+ * data, data streaming to the child is suspended and the parent waits for the
+ * child to send back the data it already received, then the channel is resumed.
+ * For data generated by the child, such as (the current, to be mooted by
+ * parent-intercept) child-side intercept, the data (currently) stream is
+ * continually pumped up to the parent.
+ *
+ * In particular, we want to reproduce the circumstances of Bug 1418795 where
+ * the child-side input-stream pump attempts to send data to the parent process
+ * but the parent has canceled the channel and so the IPC Actor has been torn
+ * down.  Diversion begins once the nsURILoader receives the OnStartRequest
+ * notification with the headers, so there are two ways to produce
+ */
+
+/**
+ * Clear the downloads list so other tests don't see our byproducts.
+ */
+async function clearDownloads() {
+  const downloads = await Downloads.getList(Downloads.ALL);
+  downloads.removeFinished();
+}
+
+/**
+ * Returns a Promise that will be resolved once the download dialog shows up and
+ * we have clicked the given button.
+ */
+function promiseClickDownloadDialogButton(buttonAction) {
+  const uri = "chrome://mozapps/content/downloads/unknownContentType.xhtml";
+  return BrowserTestUtils.promiseAlertDialogOpen(buttonAction, uri, {
+    async callback(win) {
+      // nsHelperAppDlg.js currently uses an eval-based setTimeout(0) to invoke
+      // its postShowCallback that results in a misleading error to the console
+      // if we close the dialog before it gets a chance to run.  Just a
+      // setTimeout is not sufficient because it appears we get our "load"
+      // listener before the document's, so we use TestUtils.waitForTick() to
+      // defer until after its load handler runs, then use setTimeout(0) to end
+      // up after its eval.
+      await TestUtils.waitForTick();
+
+      await new Promise(resolve => setTimeout(resolve, 0));
+
+      const button = win.document
+        .getElementById("unknownContentType")
+        .getButton(buttonAction);
+      button.disabled = false;
+      info(`clicking ${buttonAction} button`);
+      button.click();
+    },
+  });
+}
+
+async function performCanceledDownload(tab, path) {
+  // If we're going to show a modal dialog for this download, then we should
+  // use it to cancel the download. If not, then we have to let the download
+  // start and then call into the downloads API ourselves to cancel it.
+  // We use this promise to signal the cancel being complete in either case.
+  let cancelledDownload;
+
+  if (
+    Services.prefs.getBoolPref(
+      "browser.download.always_ask_before_handling_new_types",
+      false
+    )
+  ) {
+    // Start waiting for the download dialog before triggering the download.
+    cancelledDownload = promiseClickDownloadDialogButton("cancel");
+    // Wait for the cancelation to have been triggered.
+    info("waiting for download popup");
+  } else {
+    let downloadView;
+    cancelledDownload = new Promise(resolve => {
+      downloadView = {
+        onDownloadAdded(aDownload) {
+          aDownload.cancel();
+          resolve();
+        },
+      };
+    });
+    const downloadList = await Downloads.getList(Downloads.ALL);
+    await downloadList.addView(downloadView);
+  }
+
+  // Trigger the download.
+  info(`triggering download of "${path}"`);
+  /* eslint-disable no-shadow */
+  await SpecialPowers.spawn(tab.linkedBrowser, [path], function (path) {
+    // Put a Promise in place that we can wait on for stream closure.
+    content.wrappedJSObject.trackStreamClosure(path);
+    // Create the link and trigger the download.
+    const link = content.document.createElement("a");
+    link.href = path;
+    link.download = path;
+    content.document.body.appendChild(link);
+    link.click();
+  });
+  /* eslint-enable no-shadow */
+
+  // Wait for the download to cancel.
+  await cancelledDownload;
+  info("cancelled download");
+
+  // Wait for confirmation that the stream stopped.
+  info(`wait for the ${path} stream to close.`);
+  /* eslint-disable no-shadow */
+  const why = await SpecialPowers.spawn(
+    tab.linkedBrowser,
+    [path],
+    function (path) {
+      return content.wrappedJSObject.streamClosed[path].promise;
+    }
+  );
+  /* eslint-enable no-shadow */
+  is(why.why, "canceled", "Ensure the stream canceled instead of timing out.");
+  // Note that for the "sw-stream-download" case, we end up with a bogus
+  // reason of "'close' may only be called on a stream in the 'readable' state."
+  // Since we aren't actually invoking close(), I'm assuming this is an
+  // implementation bug that will be corrected in the web platform tests.
+  info(`Cancellation reason: ${why.message} after ${why.ticks} ticks`);
+}
+
+const gTestRoot = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content/",
+  "http://mochi.test:8888/"
+);
+
+const PAGE_URL = `${gTestRoot}download_canceled/page_download_canceled.html`;
+
+add_task(async function interruptedDownloads() {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ],
+  });
+
+  // Open the tab
+  const tab = await BrowserTestUtils.openNewForegroundTab({
+    gBrowser,
+    opening: PAGE_URL,
+  });
+
+  // Wait for it to become controlled.  Check that it was a promise that
+  // resolved as expected rather than undefined by checking the return value.
+  const controlled = await SpecialPowers.spawn(
+    tab.linkedBrowser,
+    [],
+    function () {
+      // This is a promise set up by the page during load, and we are post-load.
+      return content.wrappedJSObject.controlled;
+    }
+  );
+  is(controlled, "controlled", "page became controlled");
+
+  // Download a pass-through fetch stream.
+  await performCanceledDownload(tab, "sw-passthrough-download");
+
+  // Download a SW-generated stream
+  await performCanceledDownload(tab, "sw-stream-download");
+
+  // Cleanup
+  await SpecialPowers.spawn(tab.linkedBrowser, [], function () {
+    return content.wrappedJSObject.registration.unregister();
+  });
+  BrowserTestUtils.removeTab(tab);
+  await clearDownloads();
+});
diff --git a/dom/serviceworkers/test/browser_force_refresh.js b/dom/serviceworkers/test/browser_force_refresh.js
new file mode 100644
index 0000000000..1cd4fc0398
--- /dev/null
+++ b/dom/serviceworkers/test/browser_force_refresh.js
@@ -0,0 +1,87 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+var gTestRoot = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content/",
+  "http://mochi.test:8888/"
+);
+
+async function refresh() {
+  EventUtils.synthesizeKey("R", { accelKey: true });
+}
+
+async function forceRefresh() {
+  EventUtils.synthesizeKey("R", { accelKey: true, shiftKey: true });
+}
+
+async function done() {
+  // unregister window actors
+  ChromeUtils.unregisterWindowActor("ForceRefresh");
+  let tab = gBrowser.selectedTab;
+  let tabBrowser = gBrowser.getBrowserForTab(tab);
+  await ContentTask.spawn(tabBrowser, null, async function () {
+    const swr = await content.navigator.serviceWorker.getRegistration();
+    await swr.unregister();
+  });
+
+  BrowserTestUtils.removeTab(tab);
+  executeSoon(finish);
+}
+
+function test() {
+  waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv(
+    {
+      set: [
+        ["dom.serviceWorkers.enabled", true],
+        ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+        ["dom.serviceWorkers.testing.enabled", true],
+        ["dom.caches.enabled", true],
+        ["browser.cache.disk.enable", false],
+        ["browser.cache.memory.enable", false],
+      ],
+    },
+    async function () {
+      // create ForceRefreseh window actor
+      const { ForceRefreshParent } = ChromeUtils.importESModule(
+        getRootDirectory(gTestPath) + "ForceRefreshParent.sys.mjs"
+      );
+
+      // setup helper functions for ForceRefreshParent
+      ForceRefreshParent.SimpleTest = SimpleTest;
+      ForceRefreshParent.refresh = refresh;
+      ForceRefreshParent.forceRefresh = forceRefresh;
+      ForceRefreshParent.done = done;
+
+      // setup window actor options
+      let windowActorOptions = {
+        parent: {
+          esModuleURI:
+            getRootDirectory(gTestPath) + "ForceRefreshParent.sys.mjs",
+        },
+        child: {
+          esModuleURI:
+            getRootDirectory(gTestPath) + "ForceRefreshChild.sys.mjs",
+          events: {
+            "base-register": { capture: true, wantUntrusted: true },
+            "base-sw-ready": { capture: true, wantUntrusted: true },
+            "base-load": { capture: true, wantUntrusted: true },
+            "cached-load": { capture: true, wantUntrusted: true },
+            "cached-failure": { capture: true, wantUntrusted: true },
+          },
+        },
+        allFrames: true,
+      };
+
+      // register ForceRefresh window actors
+      ChromeUtils.registerWindowActor("ForceRefresh", windowActorOptions);
+
+      // create a new tab and load test url
+      var url = gTestRoot + "browser_base_force_refresh.html";
+      var tab = BrowserTestUtils.addTab(gBrowser);
+      var tabBrowser = gBrowser.getBrowserForTab(tab);
+      gBrowser.selectedTab = tab;
+      BrowserTestUtils.loadURIString(gBrowser, url);
+    }
+  );
+}
diff --git a/dom/serviceworkers/test/browser_head.js b/dom/serviceworkers/test/browser_head.js
new file mode 100644
index 0000000000..78e4d327ec
--- /dev/null
+++ b/dom/serviceworkers/test/browser_head.js
@@ -0,0 +1,318 @@
+/**
+ * This file contains common functionality for ServiceWorker browser tests.
+ *
+ * Note that the normal auto-import mechanics for browser mochitests only
+ * handles "head.js", but we currently store all of our different varieties of
+ * mochitest in a single directory, which potentially results in a collision
+ * for similar heuristics for xpcshell.
+ *
+ * Many of the storage-related helpers in this file come from:
+ * https://searchfox.org/mozilla-central/source/dom/localstorage/test/unit/head.js
+ **/
+
+// To use this file, explicitly import it via:
+//
+// Services.scriptloader.loadSubScript("chrome://mochitests/content/browser/dom/serviceworkers/test/browser_head.js", this);
+
+// Find the current parent directory of the test context we're being loaded into
+// such that one can do `${originNoTrailingSlash}/${DIR_PATH}/file_in_dir.foo`.
+const DIR_PATH = getRootDirectory(gTestPath)
+  .replace("chrome://mochitests/content/", "")
+  .slice(0, -1);
+
+const SWM = Cc["@mozilla.org/serviceworkers/manager;1"].getService(
+  Ci.nsIServiceWorkerManager
+);
+
+// The expected minimum usage for an origin that has any Cache API storage in
+// use. Currently, the DB uses a page size of 4k and a minimum growth size of
+// 32k and has enough tables/indices for this to round up to 64k.
+const kMinimumOriginUsageBytes = 65536;
+
+function getPrincipal(url, attrs) {
+  const uri = Services.io.newURI(url);
+  if (!attrs) {
+    attrs = {};
+  }
+  return Services.scriptSecurityManager.createContentPrincipal(uri, attrs);
+}
+
+async function _qm_requestFinished(request) {
+  await new Promise(function (resolve) {
+    request.callback = function () {
+      resolve();
+    };
+  });
+
+  if (request.resultCode !== Cr.NS_OK) {
+    throw new RequestError(request.resultCode, request.resultName);
+  }
+
+  return request.result;
+}
+
+async function qm_reset_storage() {
+  return new Promise(resolve => {
+    let request = Services.qms.reset();
+    request.callback = resolve;
+  });
+}
+
+async function get_qm_origin_usage(origin) {
+  return new Promise(resolve => {
+    const principal =
+      Services.scriptSecurityManager.createContentPrincipalFromOrigin(origin);
+    Services.qms.getUsageForPrincipal(principal, request =>
+      resolve(request.result.usage)
+    );
+  });
+}
+
+/**
+ * Clear the group associated with the given origin via nsIClearDataService.  We
+ * are using nsIClearDataService here because nsIQuotaManagerService doesn't
+ * (directly) provide a means of clearing a group.
+ */
+async function clear_qm_origin_group_via_clearData(origin) {
+  const uri = Services.io.newURI(origin);
+  const baseDomain = Services.eTLD.getBaseDomain(uri);
+  info(`Clearing storage on domain ${baseDomain} (from origin ${origin})`);
+
+  // Initiate group clearing and wait for it.
+  await new Promise((resolve, reject) => {
+    Services.clearData.deleteDataFromBaseDomain(
+      baseDomain,
+      false,
+      Services.clearData.CLEAR_DOM_QUOTA,
+      failedFlags => {
+        if (failedFlags) {
+          reject(failedFlags);
+        } else {
+          resolve();
+        }
+      }
+    );
+  });
+}
+
+/**
+ * Look up the nsIServiceWorkerRegistrationInfo for a given SW descriptor.
+ */
+function swm_lookup_reg(swDesc) {
+  // Scopes always include the full origin.
+  const fullScope = `${swDesc.origin}/${DIR_PATH}/${swDesc.scope}`;
+  const principal = getPrincipal(fullScope);
+
+  const reg = SWM.getRegistrationByPrincipal(principal, fullScope);
+
+  return reg;
+}
+
+/**
+ * Install a ServiceWorker according to the provided descriptor by opening a
+ * fresh tab that will be closed when we are done.  Returns the
+ * `nsIServiceWorkerRegistrationInfo` corresponding to the registration.
+ *
+ * The descriptor may have the following properties:
+ * - scope: Optional.
+ * - script: The script, which usually just wants to be a relative path.
+ * - origin: Requred, the origin (which should not include a trailing slash).
+ */
+async function install_sw(swDesc) {
+  info(
+    `Installing ServiceWorker ${swDesc.script} at ${swDesc.scope} on origin ${swDesc.origin}`
+  );
+  const pageUrlStr = `${swDesc.origin}/${DIR_PATH}/empty_with_utils.html`;
+
+  await BrowserTestUtils.withNewTab(
+    {
+      gBrowser,
+      url: pageUrlStr,
+    },
+    async browser => {
+      await SpecialPowers.spawn(
+        browser,
+        [{ swScript: swDesc.script, swScope: swDesc.scope }],
+        async function ({ swScript, swScope }) {
+          await content.wrappedJSObject.registerAndWaitForActive(
+            swScript,
+            swScope
+          );
+        }
+      );
+    }
+  );
+  info(`ServiceWorker installed`);
+
+  return swm_lookup_reg(swDesc);
+}
+
+/**
+ * Consume storage in the given origin by storing randomly generated Blobs into
+ * Cache API storage and IndexedDB storage.  We use both APIs in order to
+ * ensure that data clearing wipes both QM clients.
+ *
+ * Randomly generated Blobs means Blobs with literally random content.  This is
+ * done to compensate for the Cache API using snappy for compression.
+ */
+async function consume_storage(origin, storageDesc) {
+  info(`Consuming storage on origin ${origin}`);
+  const pageUrlStr = `${origin}/${DIR_PATH}/empty_with_utils.html`;
+
+  await BrowserTestUtils.withNewTab(
+    {
+      gBrowser,
+      url: pageUrlStr,
+    },
+    async browser => {
+      await SpecialPowers.spawn(
+        browser,
+        [storageDesc],
+        async function ({ cacheBytes, idbBytes }) {
+          await content.wrappedJSObject.fillStorage(cacheBytes, idbBytes);
+        }
+      );
+    }
+  );
+}
+
+// Check if the origin is effectively empty, but allowing for the minimum size
+// Cache API database to be present.
+function is_minimum_origin_usage(originUsageBytes) {
+  return originUsageBytes <= kMinimumOriginUsageBytes;
+}
+
+/**
+ * Perform a navigation, waiting until the navigation stops, then returning
+ * the `textContent` of the body node.  The expectation is this will be used
+ * with ServiceWorkers that return a body that indicates the ServiceWorker
+ * provided the result (possibly derived from the request) versus if
+ * interception didn't happen.
+ */
+async function navigate_and_get_body(swDesc, debugTag) {
+  let pageUrlStr = `${swDesc.origin}/${DIR_PATH}/${swDesc.scope}`;
+  if (debugTag) {
+    pageUrlStr += "?" + debugTag;
+  }
+  info(`Navigating to ${pageUrlStr}`);
+
+  const tabResult = await BrowserTestUtils.withNewTab(
+    {
+      gBrowser,
+      url: pageUrlStr,
+      // In the event of an aborted navigation, the load event will never
+      // happen...
+      waitForLoad: false,
+      // ...but the stop will.
+      waitForStateStop: true,
+    },
+    async browser => {
+      info(` Tab opened, querying body content.`);
+      const spawnResult = await SpecialPowers.spawn(browser, [], function () {
+        const controlled = !!content.navigator.serviceWorker.controller;
+        // Special-case about: URL's.
+        let loc = content.document.documentURI;
+        if (loc.startsWith("about:")) {
+          // about:neterror is parameterized by query string, so truncate that
+          // off because our tests just care if we're seeing the neterror page.
+          const idxQuestion = loc.indexOf("?");
+          if (idxQuestion !== -1) {
+            loc = loc.substring(0, idxQuestion);
+          }
+          return { controlled, body: loc };
+        }
+        return {
+          controlled,
+          body: content.document?.body?.textContent?.trim(),
+        };
+      });
+
+      return spawnResult;
+    }
+  );
+
+  return tabResult;
+}
+
+function waitForIframeLoad(iframe) {
+  return new Promise(function (resolve) {
+    iframe.onload = resolve;
+  });
+}
+
+function waitForRegister(scope, callback) {
+  return new Promise(function (resolve) {
+    let listener = {
+      onRegister(registration) {
+        if (registration.scope !== scope) {
+          return;
+        }
+        SWM.removeListener(listener);
+        resolve(callback ? callback(registration) : registration);
+      },
+    };
+    SWM.addListener(listener);
+  });
+}
+
+function waitForUnregister(scope) {
+  return new Promise(function (resolve) {
+    let listener = {
+      onUnregister(registration) {
+        if (registration.scope !== scope) {
+          return;
+        }
+        SWM.removeListener(listener);
+        resolve(registration);
+      },
+    };
+    SWM.addListener(listener);
+  });
+}
+
+// Be careful using this helper function, please make sure QuotaUsageCheck must
+// happen, otherwise test would be stucked in this function.
+function waitForQuotaUsageCheckFinish(scope) {
+  return new Promise(function (resolve) {
+    let listener = {
+      onQuotaUsageCheckFinish(registration) {
+        if (registration.scope !== scope) {
+          return;
+        }
+        SWM.removeListener(listener);
+        resolve(registration);
+      },
+    };
+    SWM.addListener(listener);
+  });
+}
+
+function waitForServiceWorkerRegistrationChange(registration, callback) {
+  return new Promise(function (resolve) {
+    let listener = {
+      onChange() {
+        registration.removeListener(listener);
+        if (callback) {
+          callback();
+        }
+        resolve(callback ? callback() : undefined);
+      },
+    };
+    registration.addListener(listener);
+  });
+}
+
+function waitForServiceWorkerShutdown() {
+  return new Promise(function (resolve) {
+    let observer = {
+      observe(subject, topic, data) {
+        if (topic !== "service-worker-shutdown") {
+          return;
+        }
+        SpecialPowers.removeObserver(observer, "service-worker-shutdown");
+        resolve();
+      },
+    };
+    SpecialPowers.addObserver(observer, "service-worker-shutdown");
+  });
+}
diff --git a/dom/serviceworkers/test/browser_intercepted_channel_process_swap.js b/dom/serviceworkers/test/browser_intercepted_channel_process_swap.js
new file mode 100644
index 0000000000..ab45998539
--- /dev/null
+++ b/dom/serviceworkers/test/browser_intercepted_channel_process_swap.js
@@ -0,0 +1,110 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests that navigation loads through intercepted channels result in the
+// appropriate process swaps. This appears to only be possible when navigating
+// to a cross-origin URL, where that navigation is controlled by a ServiceWorker.
+
+"use strict";
+
+const SAME_ORIGIN = "https://example.com";
+const CROSS_ORIGIN = "https://example.org";
+
+const SAME_ORIGIN_ROOT = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content",
+  SAME_ORIGIN
+);
+const CROSS_ORIGIN_ROOT = SAME_ORIGIN_ROOT.replace(SAME_ORIGIN, CROSS_ORIGIN);
+
+const SW_REGISTER_URL = `${CROSS_ORIGIN_ROOT}empty_with_utils.html`;
+const SW_SCRIPT_URL = `${CROSS_ORIGIN_ROOT}intercepted_channel_process_swap_worker.js`;
+const URL_BEFORE_NAVIGATION = `${SAME_ORIGIN_ROOT}empty.html`;
+const CROSS_ORIGIN_URL = `${CROSS_ORIGIN_ROOT}empty.html`;
+
+const TESTCASES = [
+  {
+    url: CROSS_ORIGIN_URL,
+    description:
+      "Controlled cross-origin navigation with network-provided response",
+  },
+  {
+    url: `${CROSS_ORIGIN_ROOT}this-path-does-not-exist?respondWith=${CROSS_ORIGIN_URL}`,
+    description:
+      "Controlled cross-origin navigation with ServiceWorker-provided response",
+  },
+];
+
+async function navigateTab(aTab, aUrl) {
+  BrowserTestUtils.loadURIString(aTab.linkedBrowser, aUrl);
+
+  await BrowserTestUtils.waitForLocationChange(gBrowser, aUrl).then(() =>
+    BrowserTestUtils.browserStopped(aTab.linkedBrowser)
+  );
+}
+
+async function runTestcase(aTab, aTestcase) {
+  info(`Testing ${aTestcase.description}`);
+
+  await navigateTab(aTab, URL_BEFORE_NAVIGATION);
+
+  const [initialPid] = E10SUtils.getBrowserPids(aTab.linkedBrowser);
+
+  await navigateTab(aTab, aTestcase.url);
+
+  const [finalPid] = E10SUtils.getBrowserPids(aTab.linkedBrowser);
+
+  await SpecialPowers.spawn(aTab.linkedBrowser, [], () => {
+    Assert.ok(
+      content.navigator.serviceWorker.controller,
+      `${content.location} should be controlled.`
+    );
+  });
+
+  Assert.notEqual(
+    initialPid,
+    finalPid,
+    `Navigating from ${URL_BEFORE_NAVIGATION} to ${aTab.linkedBrowser.currentURI.spec} should have resulted in a different PID.`
+  );
+}
+
+add_task(async function setupPrefs() {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ],
+  });
+});
+
+add_task(async function setupBrowser() {
+  const tab = await BrowserTestUtils.openNewForegroundTab({
+    gBrowser,
+    opening: SW_REGISTER_URL,
+  });
+
+  await SpecialPowers.spawn(
+    tab.linkedBrowser,
+    [SW_SCRIPT_URL],
+    async scriptUrl => {
+      await content.wrappedJSObject.registerAndWaitForActive(scriptUrl);
+    }
+  );
+});
+
+add_task(async function runTestcases() {
+  for (const testcase of TESTCASES) {
+    await runTestcase(gBrowser.selectedTab, testcase);
+  }
+});
+
+add_task(async function cleanup() {
+  const tab = gBrowser.selectedTab;
+
+  await navigateTab(tab, SW_REGISTER_URL);
+
+  await SpecialPowers.spawn(tab.linkedBrowser, [], async () => {
+    await content.wrappedJSObject.unregisterAll();
+  });
+
+  BrowserTestUtils.removeTab(tab);
+});
diff --git a/dom/serviceworkers/test/browser_intercepted_worker_script.js b/dom/serviceworkers/test/browser_intercepted_worker_script.js
new file mode 100644
index 0000000000..b76da870cd
--- /dev/null
+++ b/dom/serviceworkers/test/browser_intercepted_worker_script.js
@@ -0,0 +1,102 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * This test tests if the service worker is able to intercept the script loading
+ * channel of a dedicated worker.
+ *
+ * On success, the test will not crash.
+ */
+
+const SAME_ORIGIN = "https://example.com";
+
+const SAME_ORIGIN_ROOT = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content",
+  SAME_ORIGIN
+);
+
+const SW_REGISTER_URL = `${SAME_ORIGIN_ROOT}empty_with_utils.html`;
+const SW_SCRIPT_URL = `${SAME_ORIGIN_ROOT}simple_fetch_worker.js`;
+const SCRIPT_URL = `${SAME_ORIGIN_ROOT}empty.js`;
+
+async function navigateTab(aTab, aUrl) {
+  BrowserTestUtils.loadURIString(aTab.linkedBrowser, aUrl);
+
+  await BrowserTestUtils.waitForLocationChange(gBrowser, aUrl).then(() =>
+    BrowserTestUtils.browserStopped(aTab.linkedBrowser)
+  );
+}
+
+async function runTest(aTestSharedWorker) {
+  const tab = gBrowser.selectedTab;
+
+  await navigateTab(tab, SW_REGISTER_URL);
+
+  await SpecialPowers.spawn(
+    tab.linkedBrowser,
+    [SCRIPT_URL, aTestSharedWorker],
+    async (scriptUrl, testSharedWorker) => {
+      await new Promise(resolve => {
+        content.navigator.serviceWorker.onmessage = e => {
+          if (e.data == scriptUrl) {
+            resolve();
+          }
+        };
+
+        if (testSharedWorker) {
+          let worker = new content.Worker(scriptUrl);
+        } else {
+          let worker = new content.SharedWorker(scriptUrl);
+        }
+      });
+    }
+  );
+
+  ok(true, "The service worker has intercepted the script loading.");
+}
+
+add_task(async function setupPrefs() {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      [
+        "network.cookie.cookieBehavior",
+        Ci.nsICookieService.BEHAVIOR_REJECT_TRACKER_AND_PARTITION_FOREIGN,
+      ],
+    ],
+  });
+});
+
+add_task(async function setupBrowser() {
+  // The tab will be used by subsequent test steps via 'gBrowser.selectedTab'.
+  const tab = await BrowserTestUtils.openNewForegroundTab({
+    gBrowser,
+    opening: SW_REGISTER_URL,
+  });
+
+  registerCleanupFunction(async _ => {
+    await navigateTab(tab, SW_REGISTER_URL);
+
+    await SpecialPowers.spawn(tab.linkedBrowser, [], async () => {
+      await content.wrappedJSObject.unregisterAll();
+    });
+
+    BrowserTestUtils.removeTab(tab);
+  });
+
+  await SpecialPowers.spawn(
+    tab.linkedBrowser,
+    [SW_SCRIPT_URL],
+    async scriptUrl => {
+      await content.wrappedJSObject.registerAndWaitForActive(scriptUrl);
+    }
+  );
+});
+
+add_task(async function runTests() {
+  await runTest(false);
+  await runTest(true);
+});
diff --git a/dom/serviceworkers/test/browser_navigationPreload_read_after_respondWith.js b/dom/serviceworkers/test/browser_navigationPreload_read_after_respondWith.js
new file mode 100644
index 0000000000..6c9fd65adb
--- /dev/null
+++ b/dom/serviceworkers/test/browser_navigationPreload_read_after_respondWith.js
@@ -0,0 +1,115 @@
+const TOP_DOMAIN = "http://mochi.test:8888/";
+const SW_DOMAIN = "https://example.org/";
+
+const TOP_TEST_ROOT = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content/",
+  TOP_DOMAIN
+);
+const SW_TEST_ROOT = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content/",
+  SW_DOMAIN
+);
+
+const TOP_EMPTY_PAGE = `${TOP_TEST_ROOT}empty_with_utils.html`;
+const SW_REGISTER_PAGE = `${SW_TEST_ROOT}empty_with_utils.html`;
+const SW_IFRAME_PAGE = `${SW_TEST_ROOT}navigationPreload_page.html`;
+// An empty script suffices for our SW needs; it's by definition no-fetch.
+const SW_REL_SW_SCRIPT = "sw_with_navigationPreload.js";
+
+/**
+ * Test the FetchEvent.preloadResponse can be read after FetchEvent.respondWith()
+ *
+ * Step 1. register a ServiceWorker which only handles FetchEvent when request
+ *         url includes navigationPreload_page.html. Otherwise, it alwasy
+ *         fallbacks the fetch to the network.
+ *         If the request url includes navigationPreload_page.html, it call
+ *         FetchEvent.respondWith() with a new Resposne, and then call
+ *         FetchEvent.waitUtil() to wait FetchEvent.preloadResponse and post the
+ *         preloadResponse's text to clients.
+ * Step 2. Open a controlled page and register message event handler to receive
+ *         the postMessage from ServiceWorker.
+ * Step 3. Create a iframe which url is navigationPreload_page.html, such that
+ *         ServiceWorker can fake the response and then send preloadResponse's
+ *         result.
+ * Step 4. Unregister the ServiceWorker and cleanup the environment.
+ */
+add_task(async function () {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ],
+  });
+
+  // Step 1.
+  info("Opening a new tab: " + SW_REGISTER_PAGE);
+  let topTab = await BrowserTestUtils.openNewForegroundTab({
+    gBrowser,
+    opening: SW_REGISTER_PAGE,
+  });
+
+  // ## Install SW
+  await SpecialPowers.spawn(
+    topTab.linkedBrowser,
+    [{ sw: SW_REL_SW_SCRIPT }],
+    async function ({ sw }) {
+      // Waive the xray to use the content utils.js script functions.
+      dump(`register serviceworker...\n`);
+      await content.wrappedJSObject.registerAndWaitForActive(sw);
+    }
+  );
+
+  // Step 2.
+  info("Loading a controlled page: " + SW_REGISTER_PAGE);
+  let browserLoadedPromise = BrowserTestUtils.browserLoaded(
+    topTab.linkedBrowser
+  );
+  BrowserTestUtils.loadURIString(topTab.linkedBrowser, SW_REGISTER_PAGE);
+  await browserLoadedPromise;
+
+  info("Create a target iframe: " + SW_IFRAME_PAGE);
+  let result = await SpecialPowers.spawn(
+    topTab.linkedBrowser,
+    [{ url: SW_IFRAME_PAGE }],
+    async function ({ url }) {
+      async function waitForNavigationPreload() {
+        return new Promise(resolve => {
+          content.wrappedJSObject.navigator.serviceWorker.addEventListener(
+            `message`,
+            event => {
+              resolve(event.data);
+            }
+          );
+        });
+      }
+
+      let promise = waitForNavigationPreload();
+
+      // Step 3.
+      const iframe = content.wrappedJSObject.document.createElement("iframe");
+      iframe.src = url;
+      content.wrappedJSObject.document.body.appendChild(iframe);
+      await new Promise(r => {
+        iframe.onload = r;
+      });
+
+      let result = await promise;
+      return result;
+    }
+  );
+
+  is(result, "NavigationPreload\n", "Should get NavigationPreload result");
+
+  // Step 4.
+  info("Loading the SW unregister page: " + SW_REGISTER_PAGE);
+  browserLoadedPromise = BrowserTestUtils.browserLoaded(topTab.linkedBrowser);
+  BrowserTestUtils.loadURIString(topTab.linkedBrowser, SW_REGISTER_PAGE);
+  await browserLoadedPromise;
+
+  await SpecialPowers.spawn(topTab.linkedBrowser, [], async function () {
+    await content.wrappedJSObject.unregisterAll();
+  });
+
+  // Close the testing tab.
+  BrowserTestUtils.removeTab(topTab);
+});
diff --git a/dom/serviceworkers/test/browser_navigation_fetch_fault_handling.js b/dom/serviceworkers/test/browser_navigation_fetch_fault_handling.js
new file mode 100644
index 0000000000..6655c52a62
--- /dev/null
+++ b/dom/serviceworkers/test/browser_navigation_fetch_fault_handling.js
@@ -0,0 +1,272 @@
+/**
+ * This test file tests our automatic recovery and any related mitigating
+ * heuristics that occur during intercepted navigation fetch request.
+ * Specifically, we should be resetting interception so that we go to the
+ * network in these cases and then potentially taking actions like unregistering
+ * the ServiceWorker and/or clearing QuotaManager-managed storage for the
+ * origin.
+ *
+ * See specific test permutations for specific details inline in the test.
+ *
+ * NOTE THAT CURRENTLY THIS TEST IS DISCUSSING MITIGATIONS THAT ARE NOT YET
+ * IMPLEMENTED, JUST PLANNED.  These will be iterated on and added to the rest
+ * of the stack of patches on Bug 1503072.
+ *
+ * ## Test Mechanics
+ *
+ * ### Fetch Fault Injection
+ *
+ * We expose:
+ * - On nsIServiceWorkerInfo, the per-ServiceWorker XPCOM interface:
+ *   - A mechanism for creating synthetic faults by setting the
+ *     `nsIServiceWorkerInfo::testingInjectCancellation` attribute to a failing
+ *     nsresult.  The fault is applied at the beginning of the steps to dispatch
+ *     the fetch event on the global.
+ *   - A count of the number of times we experienced these navigation faults
+ *     that had to be reset as `nsIServiceWorkerInfo::navigationFaultCount`.
+ *     (This would also include real faults, but we only expect to see synthetic
+ *     faults in this test.)
+ * - On nsIServiceWorkerRegistrationInfo, the per-registration XPCOM interface:
+ *   - A readonly attribute that indicates how many times an origin storage
+ *     usage check has been initiated.
+ *
+ * We also use:
+ * - `nsIServiceWorkerManager::addListener(nsIServiceWorkerManagerListener)`
+ *   allows our test to listen for the unregistration of registrations.  This
+ *   allows us to be notified when unregistering or origin-clearing actions have
+ *   been taken as a mitigation.
+ *
+ * ### General Test Approach
+ *
+ * For each test we:
+ * - Ensure/confirm the testing origin has no QuotaManager storage in use.
+ * - Install the ServiceWorker.
+ * - If we are testing the situation where we want to simulate the origin being
+ *   near its quota limit, we also generate Cache API and IDB storage usage
+ *   sufficient to put our origin over the threshold.
+ *   - We run a quota check on the origin after doing this in order to make sure
+ *     that we did this correctly and that we properly constrained the limit for
+ *     the origin.  We fail the test for test implementation reasons if we
+ *     didn't accomplish this.
+ * - Verify a fetch navigation to the SW works without any fault injection,
+ *   producing a result produced by the ServiceWorker.
+ * - Begin fault permutations in a loop, where for each pass of the loop:
+ *   - We trigger a navigation which will result in an intercepted fetch
+ *     which will fault.  We wait until the navigation completes.
+ *   - We verify that we got the request from the network.
+ *   - We verify that the ServiceWorker's navigationFaultCount increased.
+ *   - If this the count at which we expect a mitigation to take place, we wait
+ *     for the registration to become unregistered AND:
+ *     - We check whether the storage for the origin was cleared or not, which
+ *       indicates which mitigation of the following happened:
+ *       - Unregister the registration directly.
+ *       - Clear the origin's data which will also unregister the registration
+ *         as a side effect.
+ *     - We check whether the registration indicates an origin quota check
+ *       happened or not.
+ *
+ * ### Disk Usage Limits
+ *
+ * In order to avoid gratuitous disk I/O and related overheads, we limit QM
+ * ("temporary") storage to 10 MiB which ends up limiting group usage to 10 MiB.
+ * This lets us set a threshold situation where we claim that a SW needs at
+ * least 4 MiB of storage for installation/operation, meaning that any usage
+ * beyond 6 MiB in the group will constitute a need to clear the group or
+ * origin.  We fill with the storage with 8 MiB of artificial usage to this end,
+ * storing 4 MiB in Cache API and 4 MiB in IDB.
+ **/
+
+// Because of the amount of I/O involved in this test, pernosco reproductions
+// may experience timeouts without a timeout multiplier.
+requestLongerTimeout(2);
+
+/* import-globals-from browser_head.js */
+Services.scriptloader.loadSubScript(
+  "chrome://mochitests/content/browser/dom/serviceworkers/test/browser_head.js",
+  this
+);
+
+// The origin we run the tests on.
+const TEST_ORIGIN = "https://test1.example.org";
+// An origin in the same group that impacts the usage of the TEST_ORIGIN.  Used
+// to verify heuristics related to group-clearing (where clearing the
+// TEST_ORIGIN itself would not be sufficient for us to mitigate quota limits
+// being reached.)
+const SAME_GROUP_ORIGIN = "https://test2.example.org";
+
+const TEST_SW_SETUP = {
+  origin: TEST_ORIGIN,
+  // Page with a body textContent of "NETWORK" and has utils.js loaded.
+  scope: "network_with_utils.html",
+  // SW that serves a body with a textContent of "SERVICEWORKER" and
+  // has utils.js loaded.
+  script: "sw_respondwith_serviceworker.js",
+};
+
+const TEST_STORAGE_SETUP = {
+  cacheBytes: 4 * 1024 * 1024, // 4 MiB
+  idbBytes: 4 * 1024 * 1024, // 4 MiB
+};
+
+const FAULTS_BEFORE_MITIGATION = 3;
+
+/**
+ * Core test iteration logic.
+ *
+ * Parameters:
+ * - name: Human readable name of the fault we're injecting.
+ * - useError: The nsresult failure code to inject into fetch.
+ * - errorPage: The "about" page that we expect errors to leave us on.
+ * - consumeQuotaOrigin: If truthy, the origin to place the storage usage in.
+ *   If falsey, we won't fill storage.
+ */
+async function do_fault_injection_test({
+  name,
+  useError,
+  errorPage,
+  consumeQuotaOrigin,
+}) {
+  info(
+    `### testing: error: ${name} (${useError}) consumeQuotaOrigin: ${consumeQuotaOrigin}`
+  );
+
+  // ## Ensure/confirm the testing origins have no QuotaManager storage in use.
+  await clear_qm_origin_group_via_clearData(TEST_ORIGIN);
+
+  // ## Install the ServiceWorker
+  const reg = await install_sw(TEST_SW_SETUP);
+  const sw = reg.activeWorker;
+
+  // ## Generate quota usage if appropriate
+  if (consumeQuotaOrigin) {
+    await consume_storage(consumeQuotaOrigin, TEST_STORAGE_SETUP);
+  }
+
+  // ## Verify normal navigation is served by the SW.
+  info(`## Checking normal operation.`);
+  {
+    const debugTag = `err=${name}&fault=0`;
+    const docInfo = await navigate_and_get_body(TEST_SW_SETUP, debugTag);
+    is(
+      docInfo.body,
+      "SERVICEWORKER",
+      "navigation without injected fault originates from ServiceWorker"
+    );
+
+    is(
+      docInfo.controlled,
+      true,
+      "successfully intercepted navigation should be controlled"
+    );
+  }
+
+  // Make sure the test is listening on the ServiceWorker unregistration, since
+  // we expect it happens after navigation fault threshold reached.
+  const unregisteredPromise = waitForUnregister(reg.scope);
+
+  // Make sure the test is listening on the finish of quota checking, since we
+  // expect it happens after navigation fault threshold reached.
+  const quotaUsageCheckFinishPromise = waitForQuotaUsageCheckFinish(reg.scope);
+
+  // ## Inject faults in a loop until expected mitigation.
+  sw.testingInjectCancellation = useError;
+  for (let iFault = 0; iFault < FAULTS_BEFORE_MITIGATION; iFault++) {
+    info(`## Testing with injected fault number ${iFault + 1}`);
+    // We should never have triggered an origin quota usage check before the
+    // final fault injection.
+    is(reg.quotaUsageCheckCount, 0, "No quota usage check yet");
+
+    // Make sure our loads encode the specific
+    const debugTag = `err=${name}&fault=${iFault + 1}`;
+
+    const docInfo = await navigate_and_get_body(TEST_SW_SETUP, debugTag);
+    // We should always be receiving network fallback.
+    is(
+      docInfo.body,
+      "NETWORK",
+      "navigation with injected fault originates from network"
+    );
+
+    is(docInfo.controlled, false, "bypassed pages shouldn't be controlled");
+
+    // The fault count should have increased
+    is(
+      sw.navigationFaultCount,
+      iFault + 1,
+      "navigation fault increased (to expected value)"
+    );
+  }
+
+  await unregisteredPromise;
+  is(reg.unregistered, true, "registration should be unregistered");
+
+  //is(reg.quotaUsageCheckCount, 1, "Quota usage check must be started");
+  await quotaUsageCheckFinishPromise;
+
+  if (consumeQuotaOrigin) {
+    // Check that there is no longer any storage usaged by the origin in this
+    // case.
+    const originUsage = await get_qm_origin_usage(TEST_ORIGIN);
+    ok(
+      is_minimum_origin_usage(originUsage),
+      "origin usage should be mitigated"
+    );
+
+    if (consumeQuotaOrigin === SAME_GROUP_ORIGIN) {
+      const sameGroupUsage = await get_qm_origin_usage(SAME_GROUP_ORIGIN);
+      ok(sameGroupUsage === 0, "same group usage should be mitigated");
+    }
+  }
+}
+
+add_task(async function test_navigation_fetch_fault_handling() {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["dom.serviceWorkers.mitigations.bypass_on_fault", true],
+      ["dom.serviceWorkers.mitigations.group_usage_headroom_kb", 5 * 1024],
+      ["dom.quotaManager.testing", true],
+      // We want the temporary global limit to be 10 MiB (the pref is in KiB).
+      // This will result in the group limit also being 10 MiB because on small
+      // disks we provide a group limit value of min(10 MiB, global limit).
+      ["dom.quotaManager.temporaryStorage.fixedLimit", 10 * 1024],
+    ],
+  });
+
+  // Need to reset the storages to make dom.quotaManager.temporaryStorage.fixedLimit
+  // works.
+  await qm_reset_storage();
+
+  const quotaOriginVariations = [
+    // Don't put us near the storage limit.
+    undefined,
+    // Put us near the storage limit in the SW origin itself.
+    TEST_ORIGIN,
+    // Put us near the storage limit in the SW origin's group but not the origin
+    // itself.
+    SAME_GROUP_ORIGIN,
+  ];
+
+  for (const consumeQuotaOrigin of quotaOriginVariations) {
+    await do_fault_injection_test({
+      name: "NS_ERROR_DOM_ABORT_ERR",
+      useError: 0x80530014, // Not in `Cr`.
+      // Abort errors manifest as about:blank pages.
+      errorPage: "about:blank",
+      consumeQuotaOrigin,
+    });
+
+    await do_fault_injection_test({
+      name: "NS_ERROR_INTERCEPTION_FAILED",
+      useError: 0x804b0064, // Not in `Cr`.
+      // Interception failures manifest as corrupt content pages.
+      errorPage: "about:neterror",
+      consumeQuotaOrigin,
+    });
+  }
+
+  // Cleanup: wipe the origin and group so all the ServiceWorkers go away.
+  await clear_qm_origin_group_via_clearData(TEST_ORIGIN);
+});
diff --git a/dom/serviceworkers/test/browser_remote_type_process_swap.js b/dom/serviceworkers/test/browser_remote_type_process_swap.js
new file mode 100644
index 0000000000..2acd3b9a51
--- /dev/null
+++ b/dom/serviceworkers/test/browser_remote_type_process_swap.js
@@ -0,0 +1,138 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * This test tests a navigation request to a Service Worker-controlled origin &
+ * scope that results in a cross-origin redirect to a
+ * non-Service Worker-controlled scope which additionally participates in
+ * cross-process redirect.
+ *
+ * On success, the test will not crash.
+ */
+
+const ORIGIN = "http://mochi.test:8888";
+const TEST_ROOT = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content",
+  ORIGIN
+);
+
+const SW_REGISTER_PAGE_URL = `${TEST_ROOT}empty_with_utils.html`;
+const SW_SCRIPT_URL = `${TEST_ROOT}empty.js`;
+
+const FILE_URL = (() => {
+  // Get the file as an nsIFile.
+  const file = getChromeDir(getResolvedURI(gTestPath));
+  file.append("empty.html");
+
+  // Convert the nsIFile to an nsIURI to access the path.
+  return Services.io.newFileURI(file).spec;
+})();
+
+const CROSS_ORIGIN = "https://example.com";
+const CROSS_ORIGIN_URL = SW_REGISTER_PAGE_URL.replace(ORIGIN, CROSS_ORIGIN);
+const CROSS_ORIGIN_REDIRECT_URL = `${TEST_ROOT}redirect.sjs?${CROSS_ORIGIN_URL}`;
+
+async function loadURI(aXULBrowser, aURI) {
+  const browserLoadedPromise = BrowserTestUtils.browserLoaded(aXULBrowser);
+  BrowserTestUtils.loadURIString(aXULBrowser, aURI);
+
+  return browserLoadedPromise;
+}
+
+async function runTest() {
+  // Step 1: register a Service Worker under `ORIGIN` so that all subsequent
+  // requests to `ORIGIN` will be marked as controlled.
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["devtools.console.stdout.content", true],
+    ],
+  });
+
+  info(`Loading tab with page ${SW_REGISTER_PAGE_URL}`);
+  const tab = await BrowserTestUtils.openNewForegroundTab({
+    gBrowser,
+    opening: SW_REGISTER_PAGE_URL,
+  });
+  info(`Loaded page ${SW_REGISTER_PAGE_URL}`);
+
+  info(`Registering Service Worker ${SW_SCRIPT_URL}`);
+  await SpecialPowers.spawn(
+    tab.linkedBrowser,
+    [{ scriptURL: SW_SCRIPT_URL }],
+    async ({ scriptURL }) => {
+      await content.wrappedJSObject.registerAndWaitForActive(scriptURL);
+    }
+  );
+  info(`Registered and activated Service Worker ${SW_SCRIPT_URL}`);
+
+  // Step 2: open a page over file:// and navigate to trigger a process swap
+  // for the response.
+  info(`Loading ${FILE_URL}`);
+  await loadURI(tab.linkedBrowser, FILE_URL);
+
+  Assert.equal(
+    tab.linkedBrowser.remoteType,
+    E10SUtils.FILE_REMOTE_TYPE,
+    `${FILE_URL} should load in a file process`
+  );
+
+  info(`Dynamically creating ${FILE_URL}'s link`);
+  await SpecialPowers.spawn(
+    tab.linkedBrowser,
+    [{ href: CROSS_ORIGIN_REDIRECT_URL }],
+    ({ href }) => {
+      const { document } = content;
+      const link = document.createElement("a");
+      link.href = href;
+      link.id = "link";
+      link.appendChild(document.createTextNode(href));
+      document.body.appendChild(link);
+    }
+  );
+
+  const redirectPromise = BrowserTestUtils.waitForLocationChange(
+    gBrowser,
+    CROSS_ORIGIN_URL
+  );
+
+  info("Starting navigation");
+  await BrowserTestUtils.synthesizeMouseAtCenter(
+    "#link",
+    {},
+    tab.linkedBrowser
+  );
+
+  info(`Waiting for location to change to ${CROSS_ORIGIN_URL}`);
+  await redirectPromise;
+
+  info("Waiting for the browser to stop");
+  await BrowserTestUtils.browserStopped(tab.linkedBrowser);
+
+  if (SpecialPowers.useRemoteSubframes) {
+    Assert.ok(
+      E10SUtils.isWebRemoteType(tab.linkedBrowser.remoteType),
+      `${CROSS_ORIGIN_URL} should load in a web-content process`
+    );
+  }
+
+  // Step 3: cleanup.
+  info("Loading initial page to unregister all Service Workers");
+  await loadURI(tab.linkedBrowser, SW_REGISTER_PAGE_URL);
+
+  info("Unregistering all Service Workers");
+  await SpecialPowers.spawn(
+    tab.linkedBrowser,
+    [],
+    async () => await content.wrappedJSObject.unregisterAll()
+  );
+
+  info("Closing tab");
+  BrowserTestUtils.removeTab(tab);
+}
+
+add_task(runTest);
diff --git a/dom/serviceworkers/test/browser_storage_permission.js b/dom/serviceworkers/test/browser_storage_permission.js
new file mode 100644
index 0000000000..0bb99a9781
--- /dev/null
+++ b/dom/serviceworkers/test/browser_storage_permission.js
@@ -0,0 +1,297 @@
+"use strict";
+
+const { PermissionTestUtils } = ChromeUtils.importESModule(
+  "resource://testing-common/PermissionTestUtils.sys.mjs"
+);
+
+const BASE_URI = "http://mochi.test:8888/browser/dom/serviceworkers/test/";
+const PAGE_URI = BASE_URI + "empty.html";
+const SCOPE = PAGE_URI + "?storage_permission";
+const SW_SCRIPT = BASE_URI + "empty.js";
+
+add_setup(async function () {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      // Until the e10s refactor is complete, use a single process to avoid
+      // service worker propagation race.
+      ["dom.ipc.processCount", 1],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ],
+  });
+
+  let tab = BrowserTestUtils.addTab(gBrowser, PAGE_URI);
+  let browser = gBrowser.getBrowserForTab(tab);
+  await BrowserTestUtils.browserLoaded(browser);
+
+  await SpecialPowers.spawn(
+    browser,
+    [{ script: SW_SCRIPT, scope: SCOPE }],
+    async function (opts) {
+      let reg = await content.navigator.serviceWorker.register(opts.script, {
+        scope: opts.scope,
+      });
+      let worker = reg.installing || reg.waiting || reg.active;
+      await new Promise(resolve => {
+        if (worker.state === "activated") {
+          resolve();
+          return;
+        }
+        worker.addEventListener("statechange", function onStateChange() {
+          if (worker.state === "activated") {
+            worker.removeEventListener("statechange", onStateChange);
+            resolve();
+          }
+        });
+      });
+    }
+  );
+
+  BrowserTestUtils.removeTab(tab);
+});
+
+add_task(async function test_allow_permission() {
+  PermissionTestUtils.add(
+    PAGE_URI,
+    "cookie",
+    Ci.nsICookiePermission.ACCESS_ALLOW
+  );
+
+  let tab = BrowserTestUtils.addTab(gBrowser, SCOPE);
+  let browser = gBrowser.getBrowserForTab(tab);
+  await BrowserTestUtils.browserLoaded(browser);
+
+  let controller = await SpecialPowers.spawn(browser, [], async function () {
+    return content.navigator.serviceWorker.controller;
+  });
+
+  ok(!!controller, "page should be controlled with storage allowed");
+
+  BrowserTestUtils.removeTab(tab);
+});
+
+add_task(async function test_deny_permission() {
+  PermissionTestUtils.add(
+    PAGE_URI,
+    "cookie",
+    Ci.nsICookiePermission.ACCESS_DENY
+  );
+
+  let tab = BrowserTestUtils.addTab(gBrowser, SCOPE);
+  let browser = gBrowser.getBrowserForTab(tab);
+  await BrowserTestUtils.browserLoaded(browser);
+
+  let controller = await SpecialPowers.spawn(browser, [], async function () {
+    return content.navigator.serviceWorker.controller;
+  });
+
+  is(controller, null, "page should be not controlled with storage denied");
+
+  BrowserTestUtils.removeTab(tab);
+  PermissionTestUtils.remove(PAGE_URI, "cookie");
+});
+
+add_task(async function test_session_permission() {
+  PermissionTestUtils.add(
+    PAGE_URI,
+    "cookie",
+    Ci.nsICookiePermission.ACCESS_SESSION
+  );
+
+  let tab = BrowserTestUtils.addTab(gBrowser, SCOPE);
+  let browser = gBrowser.getBrowserForTab(tab);
+  await BrowserTestUtils.browserLoaded(browser);
+
+  let controller = await SpecialPowers.spawn(browser, [], async function () {
+    return content.navigator.serviceWorker.controller;
+  });
+
+  is(controller, null, "page should be not controlled with session storage");
+
+  BrowserTestUtils.removeTab(tab);
+  PermissionTestUtils.remove(PAGE_URI, "cookie");
+});
+
+// Test to verify an about:blank iframe successfully inherits the
+// parent's controller when storage is blocked between opening the
+// parent page and creating the iframe.
+add_task(async function test_block_storage_before_blank_iframe() {
+  PermissionTestUtils.remove(PAGE_URI, "cookie");
+
+  let tab = BrowserTestUtils.addTab(gBrowser, SCOPE);
+  let browser = gBrowser.getBrowserForTab(tab);
+  await BrowserTestUtils.browserLoaded(browser);
+
+  let controller = await SpecialPowers.spawn(browser, [], async function () {
+    return content.navigator.serviceWorker.controller;
+  });
+
+  ok(!!controller, "page should be controlled with storage allowed");
+
+  let controller2 = await SpecialPowers.spawn(browser, [], async function () {
+    let f = content.document.createElement("iframe");
+    content.document.body.appendChild(f);
+    await new Promise(resolve => (f.onload = resolve));
+    return !!f.contentWindow.navigator.serviceWorker.controller;
+  });
+
+  ok(!!controller2, "page should be controlled with storage allowed");
+
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["network.cookie.cookieBehavior", Ci.nsICookieService.BEHAVIOR_REJECT],
+    ],
+  });
+
+  let controller3 = await SpecialPowers.spawn(browser, [], async function () {
+    let f = content.document.createElement("iframe");
+    content.document.body.appendChild(f);
+    await new Promise(resolve => (f.onload = resolve));
+    return !!f.contentWindow.navigator.serviceWorker.controller;
+  });
+
+  ok(!!controller3, "page should be controlled with storage allowed");
+
+  await SpecialPowers.popPrefEnv();
+  BrowserTestUtils.removeTab(tab);
+});
+
+// Test to verify a blob URL iframe successfully inherits the
+// parent's controller when storage is blocked between opening the
+// parent page and creating the iframe.
+add_task(async function test_block_storage_before_blob_iframe() {
+  PermissionTestUtils.remove(PAGE_URI, "cookie");
+
+  let tab = BrowserTestUtils.addTab(gBrowser, SCOPE);
+  let browser = gBrowser.getBrowserForTab(tab);
+  await BrowserTestUtils.browserLoaded(browser);
+
+  let controller = await SpecialPowers.spawn(browser, [], async function () {
+    return content.navigator.serviceWorker.controller;
+  });
+
+  ok(!!controller, "page should be controlled with storage allowed");
+
+  let controller2 = await SpecialPowers.spawn(browser, [], async function () {
+    let b = new content.Blob(["<!DOCTYPE html><html></html>"], {
+      type: "text/html",
+    });
+    let f = content.document.createElement("iframe");
+    // No need to call revokeObjectURL() since the window will be closed shortly.
+    f.src = content.URL.createObjectURL(b);
+    content.document.body.appendChild(f);
+    await new Promise(resolve => (f.onload = resolve));
+    return !!f.contentWindow.navigator.serviceWorker.controller;
+  });
+
+  ok(!!controller2, "page should be controlled with storage allowed");
+
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["network.cookie.cookieBehavior", Ci.nsICookieService.BEHAVIOR_REJECT],
+    ],
+  });
+
+  let controller3 = await SpecialPowers.spawn(browser, [], async function () {
+    let b = new content.Blob(["<!DOCTYPE html><html></html>"], {
+      type: "text/html",
+    });
+    let f = content.document.createElement("iframe");
+    // No need to call revokeObjectURL() since the window will be closed shortly.
+    f.src = content.URL.createObjectURL(b);
+    content.document.body.appendChild(f);
+    await new Promise(resolve => (f.onload = resolve));
+    return !!f.contentWindow.navigator.serviceWorker.controller;
+  });
+
+  ok(!!controller3, "page should be controlled with storage allowed");
+
+  await SpecialPowers.popPrefEnv();
+  BrowserTestUtils.removeTab(tab);
+});
+
+// Test to verify a blob worker script does not hit our service
+// worker storage assertions when storage is blocked between opening
+// the parent page and creating the worker.  Note, we cannot
+// explicitly check if the worker is controlled since we don't expose
+// WorkerNavigator.serviceWorkers.controller yet.
+add_task(async function test_block_storage_before_blob_worker() {
+  PermissionTestUtils.remove(PAGE_URI, "cookie");
+
+  let tab = BrowserTestUtils.addTab(gBrowser, SCOPE);
+  let browser = gBrowser.getBrowserForTab(tab);
+  await BrowserTestUtils.browserLoaded(browser);
+
+  let controller = await SpecialPowers.spawn(browser, [], async function () {
+    return content.navigator.serviceWorker.controller;
+  });
+
+  ok(!!controller, "page should be controlled with storage allowed");
+
+  let scriptURL = await SpecialPowers.spawn(browser, [], async function () {
+    let b = new content.Blob(
+      ["self.postMessage(self.location.href);self.close()"],
+      { type: "application/javascript" }
+    );
+    // No need to call revokeObjectURL() since the window will be closed shortly.
+    let u = content.URL.createObjectURL(b);
+    let w = new content.Worker(u);
+    return await new Promise(resolve => {
+      w.onmessage = e => resolve(e.data);
+    });
+  });
+
+  ok(scriptURL.startsWith("blob:"), "blob URL worker should run");
+
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["network.cookie.cookieBehavior", Ci.nsICookieService.BEHAVIOR_REJECT],
+    ],
+  });
+
+  let scriptURL2 = await SpecialPowers.spawn(browser, [], async function () {
+    let b = new content.Blob(
+      ["self.postMessage(self.location.href);self.close()"],
+      { type: "application/javascript" }
+    );
+    // No need to call revokeObjectURL() since the window will be closed shortly.
+    let u = content.URL.createObjectURL(b);
+    let w = new content.Worker(u);
+    return await new Promise(resolve => {
+      w.onmessage = e => resolve(e.data);
+    });
+  });
+
+  ok(scriptURL2.startsWith("blob:"), "blob URL worker should run");
+
+  await SpecialPowers.popPrefEnv();
+  BrowserTestUtils.removeTab(tab);
+});
+
+add_task(async function cleanup() {
+  PermissionTestUtils.remove(PAGE_URI, "cookie");
+
+  let tab = BrowserTestUtils.addTab(gBrowser, PAGE_URI);
+  let browser = gBrowser.getBrowserForTab(tab);
+  await BrowserTestUtils.browserLoaded(browser);
+
+  await SpecialPowers.spawn(browser, [SCOPE], async function (uri) {
+    let reg = await content.navigator.serviceWorker.getRegistration(uri);
+    let worker = reg.active;
+    await reg.unregister();
+    await new Promise(resolve => {
+      if (worker.state === "redundant") {
+        resolve();
+        return;
+      }
+      worker.addEventListener("statechange", function onStateChange() {
+        if (worker.state === "redundant") {
+          worker.removeEventListener("statechange", onStateChange);
+          resolve();
+        }
+      });
+    });
+  });
+
+  BrowserTestUtils.removeTab(tab);
+});
diff --git a/dom/serviceworkers/test/browser_storage_recovery.js b/dom/serviceworkers/test/browser_storage_recovery.js
new file mode 100644
index 0000000000..8b4a1181f7
--- /dev/null
+++ b/dom/serviceworkers/test/browser_storage_recovery.js
@@ -0,0 +1,156 @@
+"use strict";
+
+// This test registers a SW for a scope that will never control a document
+// and therefore never trigger a "fetch" functional event that would
+// automatically attempt to update the registration.  The overlap of the
+// PAGE_URI and SCOPE is incidental.  checkForUpdate is the only thing that
+// will trigger an update of the registration and so there is no need to
+// worry about Schedule Job races to coalesce an update job.
+
+const BASE_URI = "http://mochi.test:8888/browser/dom/serviceworkers/test/";
+const PAGE_URI = BASE_URI + "empty.html";
+const SCOPE = PAGE_URI + "?storage_recovery";
+const SW_SCRIPT = BASE_URI + "storage_recovery_worker.sjs";
+
+async function checkForUpdate(browser) {
+  return SpecialPowers.spawn(browser, [SCOPE], async function (uri) {
+    let reg = await content.navigator.serviceWorker.getRegistration(uri);
+    await reg.update();
+    return !!reg.installing;
+  });
+}
+
+// Delete all of our chrome-namespace Caches for this origin, leaving any
+// content-owned caches in place.  This is exclusively for simulating loss
+// of the origin's storage without loss of the registration and without
+// having to worry that future enhancements to QuotaClients/ServiceWorkerRegistrar
+// will break this test.  If you want to wipe storage for an origin, use
+// QuotaManager APIs
+async function wipeStorage(u) {
+  let uri = Services.io.newURI(u);
+  let principal = Services.scriptSecurityManager.createContentPrincipal(
+    uri,
+    {}
+  );
+  let caches = new CacheStorage("chrome", principal);
+  let list = await caches.keys();
+  return Promise.all(list.map(c => caches.delete(c)));
+}
+
+add_setup(async function () {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["dom.serviceWorkers.idle_timeout", 0],
+    ],
+  });
+
+  // Configure the server script to not redirect.
+  await fetch(SW_SCRIPT + "?clear-redirect");
+
+  let tab = BrowserTestUtils.addTab(gBrowser, PAGE_URI);
+  let browser = gBrowser.getBrowserForTab(tab);
+  await BrowserTestUtils.browserLoaded(browser);
+
+  await SpecialPowers.spawn(
+    browser,
+    [{ script: SW_SCRIPT, scope: SCOPE }],
+    async function (opts) {
+      let reg = await content.navigator.serviceWorker.register(opts.script, {
+        scope: opts.scope,
+      });
+      let worker = reg.installing || reg.waiting || reg.active;
+      await new Promise(resolve => {
+        if (worker.state === "activated") {
+          resolve();
+          return;
+        }
+        worker.addEventListener("statechange", function onStateChange() {
+          if (worker.state === "activated") {
+            worker.removeEventListener("statechange", onStateChange);
+            resolve();
+          }
+        });
+      });
+    }
+  );
+
+  BrowserTestUtils.removeTab(tab);
+});
+
+// Verify that our service worker doesn't update normally.
+add_task(async function normal_update_check() {
+  let tab = BrowserTestUtils.addTab(gBrowser, PAGE_URI);
+  let browser = gBrowser.getBrowserForTab(tab);
+  await BrowserTestUtils.browserLoaded(browser);
+
+  let updated = await checkForUpdate(browser);
+  ok(!updated, "normal update check should not trigger an update");
+
+  BrowserTestUtils.removeTab(tab);
+});
+
+// Test what happens when we wipe the service worker scripts
+// out from under the site before triggering the update.  This
+// should cause an update to occur.
+add_task(async function wiped_update_check() {
+  // Wipe the backing cache storage, but leave the SW registered.
+  await wipeStorage(PAGE_URI);
+
+  let tab = BrowserTestUtils.addTab(gBrowser, PAGE_URI);
+  let browser = gBrowser.getBrowserForTab(tab);
+  await BrowserTestUtils.browserLoaded(browser);
+
+  let updated = await checkForUpdate(browser);
+  ok(updated, "wiping the service worker scripts should trigger an update");
+
+  BrowserTestUtils.removeTab(tab);
+});
+
+// Test what happens when we wipe the service worker scripts
+// out from under the site before triggering the update.  This
+// should cause an update to occur.
+add_task(async function wiped_and_failed_update_check() {
+  // Wipe the backing cache storage, but leave the SW registered.
+  await wipeStorage(PAGE_URI);
+
+  // Configure the service worker script to redirect.  This will
+  // prevent the update from completing successfully.
+  await fetch(SW_SCRIPT + "?set-redirect");
+
+  let tab = BrowserTestUtils.addTab(gBrowser, PAGE_URI);
+  let browser = gBrowser.getBrowserForTab(tab);
+  await BrowserTestUtils.browserLoaded(browser);
+
+  // Attempt to update the service worker.  This should throw
+  // an error because the script is now redirecting.
+  let updateFailed = false;
+  try {
+    await checkForUpdate(browser);
+  } catch (e) {
+    updateFailed = true;
+  }
+  ok(updateFailed, "redirecting service worker script should fail to update");
+
+  // Also, since the existing service worker's scripts are broken
+  // we should also remove the registration completely when the
+  // update fails.
+  let exists = await SpecialPowers.spawn(
+    browser,
+    [SCOPE],
+    async function (uri) {
+      let reg = await content.navigator.serviceWorker.getRegistration(uri);
+      return !!reg;
+    }
+  );
+  ok(
+    !exists,
+    "registration should be removed after scripts are wiped and update fails"
+  );
+
+  // Note, we don't have to clean up the service worker registration
+  // since its effectively been force-removed here.
+
+  BrowserTestUtils.removeTab(tab);
+});
diff --git a/dom/serviceworkers/test/browser_unregister_with_containers.js b/dom/serviceworkers/test/browser_unregister_with_containers.js
new file mode 100644
index 0000000000..c147e50f6e
--- /dev/null
+++ b/dom/serviceworkers/test/browser_unregister_with_containers.js
@@ -0,0 +1,153 @@
+"use strict";
+
+const BASE_URI = "http://mochi.test:8888/browser/dom/serviceworkers/test/";
+const PAGE_URI = BASE_URI + "empty.html";
+const SCOPE = PAGE_URI + "?unregister_with_containers";
+const SW_SCRIPT = BASE_URI + "empty.js";
+
+function doRegister(browser) {
+  return SpecialPowers.spawn(
+    browser,
+    [{ script: SW_SCRIPT, scope: SCOPE }],
+    async function (opts) {
+      let reg = await content.navigator.serviceWorker.register(opts.script, {
+        scope: opts.scope,
+      });
+      let worker = reg.installing || reg.waiting || reg.active;
+      await new Promise(resolve => {
+        if (worker.state === "activated") {
+          resolve();
+          return;
+        }
+        worker.addEventListener("statechange", function onStateChange() {
+          if (worker.state === "activated") {
+            worker.removeEventListener("statechange", onStateChange);
+            resolve();
+          }
+        });
+      });
+    }
+  );
+}
+
+function doUnregister(browser) {
+  return SpecialPowers.spawn(browser, [SCOPE], async function (uri) {
+    let reg = await content.navigator.serviceWorker.getRegistration(uri);
+    let worker = reg.active;
+    await reg.unregister();
+    await new Promise(resolve => {
+      if (worker.state === "redundant") {
+        resolve();
+        return;
+      }
+      worker.addEventListener("statechange", function onStateChange() {
+        if (worker.state === "redundant") {
+          worker.removeEventListener("statechange", onStateChange);
+          resolve();
+        }
+      });
+    });
+  });
+}
+
+function isControlled(browser) {
+  return SpecialPowers.spawn(browser, [], function () {
+    return !!content.navigator.serviceWorker.controller;
+  });
+}
+
+async function checkControlled(browser) {
+  let controlled = await isControlled(browser);
+  ok(controlled, "window should be controlled");
+}
+
+async function checkUncontrolled(browser) {
+  let controlled = await isControlled(browser);
+  ok(!controlled, "window should not be controlled");
+}
+
+add_task(async function test() {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      // Avoid service worker propagation races by disabling multi-e10s for now.
+      // This can be removed after the e10s refactor is complete.
+      ["dom.ipc.processCount", 1],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ],
+  });
+
+  // Setup service workers in two different contexts with the same scope.
+  let containerTab1 = BrowserTestUtils.addTab(gBrowser, PAGE_URI, {
+    userContextId: 1,
+  });
+  let containerBrowser1 = gBrowser.getBrowserForTab(containerTab1);
+  await BrowserTestUtils.browserLoaded(containerBrowser1);
+
+  let containerTab2 = BrowserTestUtils.addTab(gBrowser, PAGE_URI, {
+    userContextId: 2,
+  });
+  let containerBrowser2 = gBrowser.getBrowserForTab(containerTab2);
+  await BrowserTestUtils.browserLoaded(containerBrowser2);
+
+  await doRegister(containerBrowser1);
+  await doRegister(containerBrowser2);
+
+  await checkUncontrolled(containerBrowser1);
+  await checkUncontrolled(containerBrowser2);
+
+  // Close the tabs we used to register the service workers.  These are not
+  // controlled.
+  BrowserTestUtils.removeTab(containerTab1);
+  BrowserTestUtils.removeTab(containerTab2);
+
+  // Open a controlled tab in each container.
+  containerTab1 = BrowserTestUtils.addTab(gBrowser, SCOPE, {
+    userContextId: 1,
+  });
+  containerBrowser1 = gBrowser.getBrowserForTab(containerTab1);
+  await BrowserTestUtils.browserLoaded(containerBrowser1);
+
+  containerTab2 = BrowserTestUtils.addTab(gBrowser, SCOPE, {
+    userContextId: 2,
+  });
+  containerBrowser2 = gBrowser.getBrowserForTab(containerTab2);
+  await BrowserTestUtils.browserLoaded(containerBrowser2);
+
+  await checkControlled(containerBrowser1);
+  await checkControlled(containerBrowser2);
+
+  // Remove the first container's controlled tab
+  BrowserTestUtils.removeTab(containerTab1);
+
+  // Create a new uncontrolled tab for the first container and use it to
+  // unregister the service worker.
+  containerTab1 = BrowserTestUtils.addTab(gBrowser, PAGE_URI, {
+    userContextId: 1,
+  });
+  containerBrowser1 = gBrowser.getBrowserForTab(containerTab1);
+  await BrowserTestUtils.browserLoaded(containerBrowser1);
+  await doUnregister(containerBrowser1);
+
+  await checkUncontrolled(containerBrowser1);
+  await checkControlled(containerBrowser2);
+
+  // Remove the second container's controlled tab
+  BrowserTestUtils.removeTab(containerTab2);
+
+  // Create a new uncontrolled tab for the second container and use it to
+  // unregister the service worker.
+  containerTab2 = BrowserTestUtils.addTab(gBrowser, PAGE_URI, {
+    userContextId: 2,
+  });
+  containerBrowser2 = gBrowser.getBrowserForTab(containerTab2);
+  await BrowserTestUtils.browserLoaded(containerBrowser2);
+  await doUnregister(containerBrowser2);
+
+  await checkUncontrolled(containerBrowser1);
+  await checkUncontrolled(containerBrowser2);
+
+  // Close the two tabs we used to unregister the service worker.
+  BrowserTestUtils.removeTab(containerTab1);
+  BrowserTestUtils.removeTab(containerTab2);
+});
diff --git a/dom/serviceworkers/test/browser_userContextId_openWindow.js b/dom/serviceworkers/test/browser_userContextId_openWindow.js
new file mode 100644
index 0000000000..599745e372
--- /dev/null
+++ b/dom/serviceworkers/test/browser_userContextId_openWindow.js
@@ -0,0 +1,162 @@
+let Cm = Components.manager;
+
+let swm = Cc["@mozilla.org/serviceworkers/manager;1"].getService(
+  Ci.nsIServiceWorkerManager
+);
+
+const URI = "https://example.com/browser/dom/serviceworkers/test/empty.html";
+const MOCK_CID = Components.ID("{2a0f83c4-8818-4914-a184-f1172b4eaaa7}");
+const ALERTS_SERVICE_CONTRACT_ID = "@mozilla.org/alerts-service;1";
+const USER_CONTEXT_ID = 3;
+
+let mockAlertsService = {
+  showAlert(alert, alertListener) {
+    ok(true, "Showing alert");
+    // eslint-disable-next-line mozilla/no-arbitrary-setTimeout
+    setTimeout(function () {
+      alertListener.observe(null, "alertshow", alert.cookie);
+    }, 100);
+    // eslint-disable-next-line mozilla/no-arbitrary-setTimeout
+    setTimeout(function () {
+      alertListener.observe(null, "alertclickcallback", alert.cookie);
+    }, 100);
+  },
+
+  showAlertNotification(
+    imageUrl,
+    title,
+    text,
+    textClickable,
+    cookie,
+    alertListener,
+    name,
+    dir,
+    lang,
+    data
+  ) {
+    this.showAlert();
+  },
+
+  QueryInterface(aIID) {
+    if (aIID.equals(Ci.nsISupports) || aIID.equals(Ci.nsIAlertsService)) {
+      return this;
+    }
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
+  },
+
+  createInstance(aIID) {
+    return this.QueryInterface(aIID);
+  },
+};
+
+registerCleanupFunction(() => {
+  Cm.QueryInterface(Ci.nsIComponentRegistrar).unregisterFactory(
+    MOCK_CID,
+    mockAlertsService
+  );
+});
+
+add_setup(async function () {
+  // make sure userContext, SW and notifications are enabled.
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["privacy.userContext.enabled", true],
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["dom.webnotifications.serviceworker.enabled", true],
+      ["notification.prompt.testing", true],
+      ["dom.serviceWorkers.disable_open_click_delay", 1000],
+      ["dom.serviceWorkers.idle_timeout", 299999],
+      ["dom.serviceWorkers.idle_extended_timeout", 299999],
+      ["browser.link.open_newwindow", 3],
+    ],
+  });
+});
+
+add_task(async function test() {
+  Cm.QueryInterface(Ci.nsIComponentRegistrar).registerFactory(
+    MOCK_CID,
+    "alerts service",
+    ALERTS_SERVICE_CONTRACT_ID,
+    mockAlertsService
+  );
+
+  // open the tab in the correct userContextId
+  let tab = BrowserTestUtils.addTab(gBrowser, URI, {
+    userContextId: USER_CONTEXT_ID,
+  });
+  let browser = gBrowser.getBrowserForTab(tab);
+
+  // select tab and make sure its browser is focused
+  gBrowser.selectedTab = tab;
+  tab.ownerGlobal.focus();
+
+  // wait for tab load
+  await BrowserTestUtils.browserLoaded(gBrowser.getBrowserForTab(tab));
+
+  // Waiting for new tab.
+  let newTabPromise = BrowserTestUtils.waitForNewTab(gBrowser, null, true);
+
+  // here the test.
+  /* eslint-disable no-shadow */
+  let uci = await SpecialPowers.spawn(browser, [URI], uri => {
+    let uci = content.document.nodePrincipal.userContextId;
+
+    // Registration of the SW
+    return (
+      content.navigator.serviceWorker
+        .register("file_userContextId_openWindow.js")
+
+        // Activation
+        .then(swr => {
+          return new content.window.Promise(resolve => {
+            let worker = swr.installing;
+            worker.addEventListener("statechange", () => {
+              if (worker.state === "activated") {
+                resolve(swr);
+              }
+            });
+          });
+        })
+
+        // Ask for an openWindow.
+        .then(swr => {
+          swr.showNotification("testPopup");
+          return uci;
+        })
+    );
+  });
+  /* eslint-enable no-shadow */
+
+  is(uci, USER_CONTEXT_ID, "Tab runs with UCI " + USER_CONTEXT_ID);
+
+  let newTab = await newTabPromise;
+
+  is(
+    newTab.getAttribute("usercontextid"),
+    USER_CONTEXT_ID,
+    "New tab has UCI equal " + USER_CONTEXT_ID
+  );
+
+  // wait for SW unregistration
+  /* eslint-disable no-shadow */
+  uci = await SpecialPowers.spawn(browser, [], () => {
+    let uci = content.document.nodePrincipal.userContextId;
+
+    return content.navigator.serviceWorker
+      .getRegistration(".")
+      .then(registration => {
+        return registration.unregister();
+      })
+      .then(() => {
+        return uci;
+      });
+  });
+  /* eslint-enable no-shadow */
+
+  is(uci, USER_CONTEXT_ID, "Tab runs with UCI " + USER_CONTEXT_ID);
+
+  BrowserTestUtils.removeTab(newTab);
+  BrowserTestUtils.removeTab(tab);
+});
diff --git a/dom/serviceworkers/test/bug1151916_driver.html b/dom/serviceworkers/test/bug1151916_driver.html
new file mode 100644
index 0000000000..08e7d9414f
--- /dev/null
+++ b/dom/serviceworkers/test/bug1151916_driver.html
@@ -0,0 +1,53 @@
+<html>
+  <body>
+    <script language="javascript">
+      function fail(msg) {
+        window.parent.postMessage({ status: "failed", message: msg }, "*");
+      }
+
+      function success(msg) {
+        window.parent.postMessage({ status: "success", message: msg }, "*");
+      }
+
+      if (!window.parent) {
+        dump("This file must be embedded in an iframe!");
+      }
+
+      navigator.serviceWorker.getRegistration()
+      .then(function(reg) {
+        if (!reg) {
+          navigator.serviceWorker.ready.then(function(registration) {
+            if (registration.active.state == "activating") {
+              registration.active.onstatechange = function(e) {
+                registration.active.onstatechange = null;
+                if (registration.active.state == "activated") {
+                  success("Registered and activated");
+                }
+              }
+            } else {
+              success("Registered and activated");
+            }
+          });
+          navigator.serviceWorker.register("bug1151916_worker.js",
+                                           { scope: "." });
+        } else {
+          // Simply force the sw to load a resource and touch self.caches.
+          if (!reg.active) {
+            fail("no-active-worker");
+            return;
+          }
+
+          fetch("madeup.txt").then(function(res) {
+            res.text().then(function(v) {
+              if (v == "Hi there") {
+                success("Loaded from cache");
+              } else {
+                fail("Response text did not match");
+              }
+            }, fail);
+          }, fail);
+        }
+      }, fail);
+    </script>
+  </body>
+</html>
diff --git a/dom/serviceworkers/test/bug1151916_worker.js b/dom/serviceworkers/test/bug1151916_worker.js
new file mode 100644
index 0000000000..6bd26850bf
--- /dev/null
+++ b/dom/serviceworkers/test/bug1151916_worker.js
@@ -0,0 +1,15 @@
+onactivate = function (e) {
+  e.waitUntil(
+    self.caches.open("default-cache").then(function (cache) {
+      var response = new Response("Hi there");
+      return cache.put("madeup.txt", response);
+    })
+  );
+};
+
+onfetch = function (e) {
+  if (e.request.url.match(/madeup.txt$/)) {
+    var p = self.caches.match("madeup.txt", { cacheName: "default-cache" });
+    e.respondWith(p);
+  }
+};
diff --git a/dom/serviceworkers/test/bug1240436_worker.js b/dom/serviceworkers/test/bug1240436_worker.js
new file mode 100644
index 0000000000..c21f60b60f
--- /dev/null
+++ b/dom/serviceworkers/test/bug1240436_worker.js
@@ -0,0 +1,2 @@
+// a contains a ZERO WIDTH JOINER (0x200D)
+var a = "‍";
diff --git a/dom/serviceworkers/test/chrome-common.ini b/dom/serviceworkers/test/chrome-common.ini
new file mode 100644
index 0000000000..b5cae318e1
--- /dev/null
+++ b/dom/serviceworkers/test/chrome-common.ini
@@ -0,0 +1,21 @@
+[DEFAULT]
+skip-if = os == 'android'
+support-files =
+  chrome_helpers.js
+  empty.js
+  fetch.js
+  hello.html
+  serviceworker.html
+  serviceworkerinfo_iframe.html
+  serviceworkermanager_iframe.html
+  serviceworkerregistrationinfo_iframe.html
+  utils.js
+  worker.js
+  worker2.js
+
+[test_devtools_track_serviceworker_time.html]
+[test_privateBrowsing.html]
+[test_serviceworkerinfo.xhtml]
+skip-if = serviceworker_e10s # nsIWorkerDebugger attribute not implemented
+[test_serviceworkermanager.xhtml]
+[test_serviceworkerregistrationinfo.xhtml]
diff --git a/dom/serviceworkers/test/chrome-dFPI.ini b/dom/serviceworkers/test/chrome-dFPI.ini
new file mode 100644
index 0000000000..b07337f753
--- /dev/null
+++ b/dom/serviceworkers/test/chrome-dFPI.ini
@@ -0,0 +1,7 @@
+[DEFAULT]
+# Enable dFPI(cookieBehavior 5) for service worker tests.
+prefs =
+  network.cookie.cookieBehavior=5
+dupe-manifest = true
+
+[include:chrome-common.ini]
diff --git a/dom/serviceworkers/test/chrome.ini b/dom/serviceworkers/test/chrome.ini
new file mode 100644
index 0000000000..e6f7e3206d
--- /dev/null
+++ b/dom/serviceworkers/test/chrome.ini
@@ -0,0 +1,4 @@
+[DEFAULT]
+dupe-manifest = true
+
+[include:chrome-common.ini]
diff --git a/dom/serviceworkers/test/chrome_helpers.js b/dom/serviceworkers/test/chrome_helpers.js
new file mode 100644
index 0000000000..9aaeb95625
--- /dev/null
+++ b/dom/serviceworkers/test/chrome_helpers.js
@@ -0,0 +1,71 @@
+let swm = Cc["@mozilla.org/serviceworkers/manager;1"].getService(
+  Ci.nsIServiceWorkerManager
+);
+
+let EXAMPLE_URL = "https://example.com/chrome/dom/serviceworkers/test/";
+
+function waitForIframeLoad(iframe) {
+  return new Promise(function (resolve) {
+    iframe.onload = resolve;
+  });
+}
+
+function waitForRegister(scope, callback) {
+  return new Promise(function (resolve) {
+    let listener = {
+      onRegister(registration) {
+        if (registration.scope !== scope) {
+          return;
+        }
+        swm.removeListener(listener);
+        resolve(callback ? callback(registration) : registration);
+      },
+    };
+    swm.addListener(listener);
+  });
+}
+
+function waitForUnregister(scope) {
+  return new Promise(function (resolve) {
+    let listener = {
+      onUnregister(registration) {
+        if (registration.scope !== scope) {
+          return;
+        }
+        swm.removeListener(listener);
+        resolve(registration);
+      },
+    };
+    swm.addListener(listener);
+  });
+}
+
+function waitForServiceWorkerRegistrationChange(registration, callback) {
+  return new Promise(function (resolve) {
+    let listener = {
+      onChange() {
+        registration.removeListener(listener);
+        if (callback) {
+          callback();
+        }
+        resolve(callback ? callback() : undefined);
+      },
+    };
+    registration.addListener(listener);
+  });
+}
+
+function waitForServiceWorkerShutdown() {
+  return new Promise(function (resolve) {
+    let observer = {
+      observe(subject, topic, data) {
+        if (topic !== "service-worker-shutdown") {
+          return;
+        }
+        SpecialPowers.removeObserver(observer, "service-worker-shutdown");
+        resolve();
+      },
+    };
+    SpecialPowers.addObserver(observer, "service-worker-shutdown");
+  });
+}
diff --git a/dom/serviceworkers/test/claim_clients/client.html b/dom/serviceworkers/test/claim_clients/client.html
new file mode 100644
index 0000000000..969a6dbf10
--- /dev/null
+++ b/dom/serviceworkers/test/claim_clients/client.html
@@ -0,0 +1,43 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1130684 - claim client </title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  if (!parent) {
+    info("This page shouldn't be launched directly!");
+  }
+
+  window.onload = function() {
+    parent.postMessage("READY", "*");
+  }
+
+  navigator.serviceWorker.oncontrollerchange = function() {
+    parent.postMessage({
+      event: "controllerchange",
+      controller: (navigator.serviceWorker.controller !== null)
+    }, "*");
+  }
+
+  navigator.serviceWorker.onmessage = function(e) {
+    parent.postMessage({
+      event: "message",
+      data: e.data
+    }, "*");
+  }
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/claim_oninstall_worker.js b/dom/serviceworkers/test/claim_oninstall_worker.js
new file mode 100644
index 0000000000..82c6999031
--- /dev/null
+++ b/dom/serviceworkers/test/claim_oninstall_worker.js
@@ -0,0 +1,7 @@
+oninstall = function (e) {
+  var claimFailedPromise = new Promise(function (resolve, reject) {
+    clients.claim().then(reject, () => resolve());
+  });
+
+  e.waitUntil(claimFailedPromise);
+};
diff --git a/dom/serviceworkers/test/claim_worker_1.js b/dom/serviceworkers/test/claim_worker_1.js
new file mode 100644
index 0000000000..60ba5dfc5d
--- /dev/null
+++ b/dom/serviceworkers/test/claim_worker_1.js
@@ -0,0 +1,32 @@
+onactivate = function (e) {
+  var result = {
+    resolve_value: false,
+    match_count_before: -1,
+    match_count_after: -1,
+    message: "claim_worker_1",
+  };
+
+  self.clients
+    .matchAll()
+    .then(function (matched) {
+      // should be 0
+      result.match_count_before = matched.length;
+    })
+    .then(function () {
+      return self.clients.claim();
+    })
+    .then(function (ret) {
+      result.resolve_value = ret;
+      return self.clients.matchAll();
+    })
+    .then(function (matched) {
+      // should be 2
+      result.match_count_after = matched.length;
+      for (i = 0; i < matched.length; i++) {
+        matched[i].postMessage(result);
+      }
+      if (result.match_count_after !== 2) {
+        dump("ERROR: claim_worker_1 failed to capture clients.\n");
+      }
+    });
+};
diff --git a/dom/serviceworkers/test/claim_worker_2.js b/dom/serviceworkers/test/claim_worker_2.js
new file mode 100644
index 0000000000..4293873da7
--- /dev/null
+++ b/dom/serviceworkers/test/claim_worker_2.js
@@ -0,0 +1,34 @@
+onactivate = function (e) {
+  var result = {
+    resolve_value: false,
+    match_count_before: -1,
+    match_count_after: -1,
+    message: "claim_worker_2",
+  };
+
+  self.clients
+    .matchAll()
+    .then(function (matched) {
+      // should be 0
+      result.match_count_before = matched.length;
+    })
+    .then(function () {
+      return clients.claim();
+    })
+    .then(function (ret) {
+      result.resolve_value = ret;
+      return clients.matchAll();
+    })
+    .then(function (matched) {
+      // should be 1
+      result.match_count_after = matched.length;
+      if (result.match_count_after === 1) {
+        matched[0].postMessage(result);
+      } else {
+        dump("ERROR: claim_worker_2 failed to capture clients.\n");
+        for (let i = 0; i < matched.length; ++i) {
+          dump("### ### matched[" + i + "]: " + matched[i].url + "\n");
+        }
+      }
+    });
+};
diff --git a/dom/serviceworkers/test/close_test.js b/dom/serviceworkers/test/close_test.js
new file mode 100644
index 0000000000..07f85617ef
--- /dev/null
+++ b/dom/serviceworkers/test/close_test.js
@@ -0,0 +1,22 @@
+function ok(v, msg) {
+  client.postMessage({ status: "ok", result: !!v, message: msg });
+}
+
+var client;
+onmessage = function (e) {
+  if (e.data.message == "start") {
+    self.clients.matchAll().then(function (clients) {
+      client = clients[0];
+      try {
+        close();
+        ok(false, "close() should throw");
+      } catch (ex) {
+        ok(
+          ex.name === "InvalidAccessError",
+          "close() should throw InvalidAccessError"
+        );
+      }
+      client.postMessage({ status: "done" });
+    });
+  }
+};
diff --git a/dom/serviceworkers/test/console_monitor.js b/dom/serviceworkers/test/console_monitor.js
new file mode 100644
index 0000000000..099feb646d
--- /dev/null
+++ b/dom/serviceworkers/test/console_monitor.js
@@ -0,0 +1,44 @@
+/* eslint-env mozilla/chrome-script */
+
+let consoleListener;
+
+function ConsoleListener() {
+  Services.console.registerListener(this);
+}
+
+ConsoleListener.prototype = {
+  callbacks: [],
+
+  observe: aMsg => {
+    if (!(aMsg instanceof Ci.nsIScriptError)) {
+      return;
+    }
+
+    let msg = {
+      cssSelectors: aMsg.cssSelectors,
+      errorMessage: aMsg.errorMessage,
+      sourceName: aMsg.sourceName,
+      sourceLine: aMsg.sourceLine,
+      lineNumber: aMsg.lineNumber,
+      columnNumber: aMsg.columnNumber,
+      category: aMsg.category,
+      windowID: aMsg.outerWindowID,
+      innerWindowID: aMsg.innerWindowID,
+      isScriptError: true,
+      isWarning: (aMsg.flags & Ci.nsIScriptError.warningFlag) === 1,
+    };
+
+    sendAsyncMessage("monitor", msg);
+  },
+};
+
+addMessageListener("load", function (e) {
+  consoleListener = new ConsoleListener();
+  sendAsyncMessage("ready", {});
+});
+
+addMessageListener("unload", function (e) {
+  Services.console.unregisterListener(consoleListener);
+  consoleListener = null;
+  sendAsyncMessage("unloaded", {});
+});
diff --git a/dom/serviceworkers/test/controller/index.html b/dom/serviceworkers/test/controller/index.html
new file mode 100644
index 0000000000..2a68e3f4bb
--- /dev/null
+++ b/dom/serviceworkers/test/controller/index.html
@@ -0,0 +1,72 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 94048 - test install event.</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  // Make sure to use good, unique messages, since the actual expression will not show up in test results.
+  function my_ok(result, msg) {
+    parent.postMessage({status: "ok", result, message: msg}, "*");
+  }
+
+  function finish() {
+    parent.postMessage({status: "done"}, "*");
+  }
+
+  navigator.serviceWorker.ready.then(function(swr) {
+    my_ok(swr.scope.match(/serviceworkers\/test\/control$/),
+          "This page should be controlled by upper level registration");
+    my_ok(swr.installing == undefined,
+          "Upper level registration should not have a installing worker.");
+    if (navigator.serviceWorker.controller) {
+      // We are controlled.
+      // Register a new worker for this sub-scope. After that, controller should still be for upper level, but active should change to be this scope's.
+      navigator.serviceWorker.register("../worker2.js", { scope: "./" }).then(function(e) {
+        my_ok("installing" in e, "ServiceWorkerRegistration.installing exists.");
+        my_ok(e.installing instanceof ServiceWorker, "ServiceWorkerRegistration.installing is a ServiceWorker.");
+
+        my_ok("waiting" in e, "ServiceWorkerRegistration.waiting exists.");
+        my_ok("active" in e, "ServiceWorkerRegistration.active exists.");
+
+        my_ok(e.installing &&
+              e.installing.scriptURL.match(/worker2.js$/),
+              "Installing is serviceworker/controller");
+
+        my_ok("scope" in e, "ServiceWorkerRegistration.scope exists.");
+        my_ok(e.scope.match(/serviceworkers\/test\/controller\/$/), "Scope is serviceworker/test/controller " + e.scope);
+
+        my_ok("unregister" in e, "ServiceWorkerRegistration.unregister exists.");
+
+        my_ok(navigator.serviceWorker.controller.scriptURL.match(/worker\.js$/),
+              "Controller is still worker.js");
+
+        e.unregister().then(function(result) {
+          my_ok(result, "Unregistering the SW should succeed");
+          finish();
+        }, function(error) {
+          dump("Error unregistering the SW: " + error + "\n");
+        });
+      });
+    } else {
+      my_ok(false, "Should've been controlled!");
+      finish();
+    }
+  }).catch(function(e) {
+    my_ok(false, "Some test threw an error " + e);
+    finish();
+  });
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/create_another_sharedWorker.html b/dom/serviceworkers/test/create_another_sharedWorker.html
new file mode 100644
index 0000000000..f49194fa50
--- /dev/null
+++ b/dom/serviceworkers/test/create_another_sharedWorker.html
@@ -0,0 +1,6 @@
+<!DOCTYPE HTML>
+<title>Shared workers: create antoehr sharedworekr client</title>
+<pre id=log>Hello World</pre>
+<script>
+  var worker = new SharedWorker('sharedWorker_fetch.js');
+</script>
diff --git a/dom/serviceworkers/test/download/window.html b/dom/serviceworkers/test/download/window.html
new file mode 100644
index 0000000000..7d7893e0e6
--- /dev/null
+++ b/dom/serviceworkers/test/download/window.html
@@ -0,0 +1,46 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+</head>
+<body>
+<script type="text/javascript">
+
+function wait_until_controlled() {
+  return new Promise(function(resolve) {
+    if (navigator.serviceWorker.controller) {
+      return resolve();
+    }
+    navigator.serviceWorker.addEventListener('controllerchange', function onController() {
+      if (navigator.serviceWorker.controller) {
+        navigator.serviceWorker.removeEventListener('controllerchange', onController);
+        return resolve();
+      }
+    });
+  });
+}
+addEventListener('load', function(event) {
+  var registration;
+  navigator.serviceWorker.register('worker.js').then(function(swr) {
+    registration = swr;
+
+    // While the iframe below is a navigation, we still wait until we are
+    // controlled here.  We want an active client to hold the service worker
+    // alive since it calls unregister() on itself.
+    return wait_until_controlled();
+
+  }).then(function() {
+    var frame = document.createElement('iframe');
+    document.body.appendChild(frame);
+    frame.src = 'fake_download';
+
+    // The service worker is unregistered in the fetch event.  The window and
+    // frame are cleaned up from the browser chrome script.
+  });
+});
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/download/worker.js b/dom/serviceworkers/test/download/worker.js
new file mode 100644
index 0000000000..d96f18b34d
--- /dev/null
+++ b/dom/serviceworkers/test/download/worker.js
@@ -0,0 +1,34 @@
+addEventListener("install", function (evt) {
+  evt.waitUntil(self.skipWaiting());
+});
+
+addEventListener("activate", function (evt) {
+  // We claim the current clients in order to ensure that we have an
+  // active client when we call unregister in the fetch handler.  Otherwise
+  // the unregister() can kill the current worker before returning a
+  // response.
+  evt.waitUntil(clients.claim());
+});
+
+addEventListener("fetch", function (evt) {
+  // This worker may live long enough to receive a fetch event from the next
+  // test.  Just pass such requests through to the network.
+  if (!evt.request.url.includes("fake_download")) {
+    return;
+  }
+
+  // We should only get a single download fetch event. Automatically unregister.
+  evt.respondWith(
+    registration.unregister().then(function () {
+      return new Response("service worker generated download", {
+        headers: {
+          "Content-Disposition": 'attachment; filename="fake_download.bin"',
+          // Prevent the default text editor from being launched
+          "Content-Type": "application/octet-stream",
+          // fake encoding header that should have no effect
+          "Content-Encoding": "gzip",
+        },
+      });
+    })
+  );
+});
diff --git a/dom/serviceworkers/test/download_canceled/page_download_canceled.html b/dom/serviceworkers/test/download_canceled/page_download_canceled.html
new file mode 100644
index 0000000000..e3904c4967
--- /dev/null
+++ b/dom/serviceworkers/test/download_canceled/page_download_canceled.html
@@ -0,0 +1,58 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+</head>
+<body>
+
+<script src="../utils.js"></script>
+<script type="text/javascript">
+function wait_until_controlled() {
+  return new Promise(function(resolve) {
+    if (navigator.serviceWorker.controller) {
+      return resolve('controlled');
+    }
+    navigator.serviceWorker.addEventListener('controllerchange', function onController() {
+      if (navigator.serviceWorker.controller) {
+        navigator.serviceWorker.removeEventListener('controllerchange', onController);
+        return resolve('controlled');
+      }
+    });
+  });
+}
+addEventListener('load', async function(event) {
+  window.controlled = wait_until_controlled();
+  window.registration =
+    await navigator.serviceWorker.register('sw_download_canceled.js');
+  let sw = registration.installing || registration.waiting ||
+           registration.active;
+  await waitForState(sw, 'activated');
+  sw.postMessage('claim');
+});
+
+// Place to hold promises for stream closures reported by the SW.
+window.streamClosed = {};
+
+// The ServiceWorker will postMessage to this BroadcastChannel when the streams
+// are closed.  (Alternately, the SW could have used the clients API to post at
+// us, but the mechanism by which that operates would be different when this
+// test is uplifted, and it's desirable to avoid timing changes.)
+//
+// The browser test will use this promise to wait on stream shutdown.
+window.swStreamChannel = new BroadcastChannel("stream-closed");
+function trackStreamClosure(path) {
+  let resolve;
+  const promise = new Promise(r => { resolve = r });
+  window.streamClosed[path] = { promise, resolve };
+}
+window.swStreamChannel.onmessage = ({ data }) => {
+  window.streamClosed[data.what].resolve(data);
+};
+</script>
+
+</body>
+</html>
diff --git a/dom/serviceworkers/test/download_canceled/server-stream-download.sjs b/dom/serviceworkers/test/download_canceled/server-stream-download.sjs
new file mode 100644
index 0000000000..f47e872feb
--- /dev/null
+++ b/dom/serviceworkers/test/download_canceled/server-stream-download.sjs
@@ -0,0 +1,133 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const { setInterval, clearInterval } = ChromeUtils.importESModule(
+  "resource://gre/modules/Timer.sys.mjs"
+);
+
+// stolen from file_blocked_script.sjs
+function setGlobalState(data, key) {
+  x = {
+    data,
+    QueryInterface(iid) {
+      return this;
+    },
+  };
+  x.wrappedJSObject = x;
+  setObjectState(key, x);
+}
+
+function getGlobalState(key) {
+  var data;
+  getObjectState(key, function (x) {
+    data = x && x.wrappedJSObject.data;
+  });
+  return data;
+}
+
+/*
+ * We want to let the sw_download_canceled.js service worker know when the
+ * stream was canceled.  To this end, we let it issue a monitor request which we
+ * fulfill when the stream has been canceled.  In order to coordinate between
+ * multiple requests, we use the getObjectState/setObjectState mechanism that
+ * httpd.js exposes to let data be shared and/or persist between requests.  We
+ * handle both possible orderings of the requests because we currently don't
+ * try and impose an ordering between the two requests as issued by the SW, and
+ * file_blocked_script.sjs encourages us to do this, but we probably could order
+ * them.
+ */
+const MONITOR_KEY = "stream-monitor";
+function completeMonitorResponse(response, data) {
+  response.write(JSON.stringify(data));
+  response.finish();
+}
+function handleMonitorRequest(request, response) {
+  response.setHeader("Content-Type", "application/json");
+  response.setStatusLine(request.httpVersion, 200, "Found");
+
+  response.processAsync();
+  // Necessary to cause the headers to be flushed; that or touching the
+  // bodyOutputStream getter.
+  response.write("");
+  dump("server-stream-download.js: monitor headers issued\n");
+
+  const alreadyCompleted = getGlobalState(MONITOR_KEY);
+  if (alreadyCompleted) {
+    completeMonitorResponse(response, alreadyCompleted);
+    setGlobalState(null, MONITOR_KEY);
+  } else {
+    setGlobalState(response, MONITOR_KEY);
+  }
+}
+
+const MAX_TICK_COUNT = 3000;
+const TICK_INTERVAL = 2;
+function handleStreamRequest(request, response) {
+  const name = "server-stream-download";
+
+  // Create some payload to send.
+  let strChunk =
+    "Static routes are the future of ServiceWorkers! So say we all!\n";
+  while (strChunk.length < 1024) {
+    strChunk += strChunk;
+  }
+
+  response.setHeader("Content-Disposition", `attachment; filename="${name}"`);
+  response.setHeader(
+    "Content-Type",
+    `application/octet-stream; name="${name}"`
+  );
+  response.setHeader("Content-Length", `${strChunk.length * MAX_TICK_COUNT}`);
+  response.setStatusLine(request.httpVersion, 200, "Found");
+
+  response.processAsync();
+  response.write(strChunk);
+  dump("server-stream-download.js: stream headers + first payload issued\n");
+
+  let count = 0;
+  let intervalId;
+  function closeStream(why, message) {
+    dump("server-stream-download.js: closing stream: " + why + "\n");
+    clearInterval(intervalId);
+    response.finish();
+
+    const data = { why, message };
+    const monitorResponse = getGlobalState(MONITOR_KEY);
+    if (monitorResponse) {
+      completeMonitorResponse(monitorResponse, data);
+      setGlobalState(null, MONITOR_KEY);
+    } else {
+      setGlobalState(data, MONITOR_KEY);
+    }
+  }
+  function tick() {
+    try {
+      // bound worst-case behavior.
+      if (count++ > MAX_TICK_COUNT) {
+        closeStream("timeout", "timeout");
+        return;
+      }
+      response.write(strChunk);
+    } catch (e) {
+      closeStream("canceled", e.message);
+    }
+  }
+  intervalId = setInterval(tick, TICK_INTERVAL);
+}
+
+Components.utils.importGlobalProperties(["URLSearchParams"]);
+function handleRequest(request, response) {
+  dump(
+    "server-stream-download.js: processing request for " +
+      request.path +
+      "?" +
+      request.queryString +
+      "\n"
+  );
+  const query = new URLSearchParams(request.queryString);
+  if (query.has("monitor")) {
+    handleMonitorRequest(request, response);
+  } else {
+    handleStreamRequest(request, response);
+  }
+}
diff --git a/dom/serviceworkers/test/download_canceled/sw_download_canceled.js b/dom/serviceworkers/test/download_canceled/sw_download_canceled.js
new file mode 100644
index 0000000000..5d9d5f9bfd
--- /dev/null
+++ b/dom/serviceworkers/test/download_canceled/sw_download_canceled.js
@@ -0,0 +1,150 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// This file is derived from :bkelly's https://glitch.com/edit/#!/html-sw-stream
+
+addEventListener("install", evt => {
+  evt.waitUntil(self.skipWaiting());
+});
+
+// Create a BroadcastChannel to notify when we have closed our streams.
+const channel = new BroadcastChannel("stream-closed");
+
+const MAX_TICK_COUNT = 3000;
+const TICK_INTERVAL = 4;
+/**
+ * Generate a continuous stream of data at a sufficiently high frequency that a
+ * there"s a good chance of racing channel cancellation.
+ */
+function handleStream(evt, filename) {
+  // Create some payload to send.
+  const encoder = new TextEncoder();
+  let strChunk =
+    "Static routes are the future of ServiceWorkers! So say we all!\n";
+  while (strChunk.length < 1024) {
+    strChunk += strChunk;
+  }
+  const dataChunk = encoder.encode(strChunk);
+
+  evt.waitUntil(
+    new Promise(resolve => {
+      let body = new ReadableStream({
+        start: controller => {
+          const closeStream = why => {
+            console.log("closing stream: " + JSON.stringify(why) + "\n");
+            clearInterval(intervalId);
+            resolve();
+            // In event of error, the controller will automatically have closed.
+            if (why.why != "canceled") {
+              try {
+                controller.close();
+              } catch (ex) {
+                // If we thought we should cancel but experienced a problem,
+                // that's a different kind of failure and we need to report it.
+                // (If we didn't catch the exception here, we'd end up erroneously
+                // in the tick() method's canceled handler.)
+                channel.postMessage({
+                  what: filename,
+                  why: "close-failure",
+                  message: ex.message,
+                  ticks: why.ticks,
+                });
+                return;
+              }
+            }
+            // Post prior to performing any attempt to close...
+            channel.postMessage(why);
+          };
+
+          controller.enqueue(dataChunk);
+          let count = 0;
+          let intervalId;
+          function tick() {
+            try {
+              // bound worst-case behavior.
+              if (count++ > MAX_TICK_COUNT) {
+                closeStream({
+                  what: filename,
+                  why: "timeout",
+                  message: "timeout",
+                  ticks: count,
+                });
+                return;
+              }
+              controller.enqueue(dataChunk);
+            } catch (e) {
+              closeStream({
+                what: filename,
+                why: "canceled",
+                message: e.message,
+                ticks: count,
+              });
+            }
+          }
+          // Alternately, streams' pull mechanism could be used here, but this
+          // test doesn't so much want to saturate the stream as to make sure the
+          // data is at least flowing a little bit.  (Also, the author had some
+          // concern about slowing down the test by overwhelming the event loop
+          // and concern that we might not have sufficent back-pressure plumbed
+          // through and an infinite pipe might make bad things happen.)
+          intervalId = setInterval(tick, TICK_INTERVAL);
+          tick();
+        },
+      });
+      evt.respondWith(
+        new Response(body, {
+          headers: {
+            "Content-Disposition": `attachment; filename="${filename}"`,
+            "Content-Type": "application/octet-stream",
+          },
+        })
+      );
+    })
+  );
+}
+
+/**
+ * Use an .sjs to generate a similar stream of data to the above, passing the
+ * response through directly.  Because we're handing off the response but also
+ * want to be able to report when cancellation occurs, we create a second,
+ * overlapping long-poll style fetch that will not finish resolving until the
+ * .sjs experiences closure of its socket and terminates the payload stream.
+ */
+function handlePassThrough(evt, filename) {
+  evt.waitUntil(
+    (async () => {
+      console.log("issuing monitor fetch request");
+      const response = await fetch("server-stream-download.sjs?monitor");
+      console.log("monitor headers received, awaiting body");
+      const data = await response.json();
+      console.log("passthrough monitor fetch completed, notifying.");
+      channel.postMessage({
+        what: filename,
+        why: data.why,
+        message: data.message,
+      });
+    })()
+  );
+  evt.respondWith(
+    fetch("server-stream-download.sjs").then(response => {
+      console.log("server-stream-download.sjs Response received, propagating");
+      return response;
+    })
+  );
+}
+
+addEventListener("fetch", evt => {
+  console.log(`SW processing fetch of ${evt.request.url}`);
+  if (evt.request.url.includes("sw-stream-download")) {
+    return handleStream(evt, "sw-stream-download");
+  }
+  if (evt.request.url.includes("sw-passthrough-download")) {
+    return handlePassThrough(evt, "sw-passthrough-download");
+  }
+});
+
+addEventListener("message", evt => {
+  if (evt.data === "claim") {
+    evt.waitUntil(clients.claim());
+  }
+});
diff --git a/dom/serviceworkers/test/empty.html b/dom/serviceworkers/test/empty.html
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/dom/serviceworkers/test/empty.js b/dom/serviceworkers/test/empty.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/dom/serviceworkers/test/empty_with_utils.html b/dom/serviceworkers/test/empty_with_utils.html
new file mode 100644
index 0000000000..75f0aa8872
--- /dev/null
+++ b/dom/serviceworkers/test/empty_with_utils.html
@@ -0,0 +1,13 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <script src="utils.js" type="text/javascript"></script>
+</head>
+<body>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/error_reporting_helpers.js b/dom/serviceworkers/test/error_reporting_helpers.js
new file mode 100644
index 0000000000..42ddbe42a2
--- /dev/null
+++ b/dom/serviceworkers/test/error_reporting_helpers.js
@@ -0,0 +1,73 @@
+"use strict";
+
+/**
+ * Helpers for use in tests that want to verify that localized error messages
+ * are logged during the test.  Because most of our errors (ex:
+ * ServiceWorkerManager) generate nsIScriptError instances with flattened
+ * strings (the interpolated arguments aren't kept around), we load the string
+ * bundle and use it to derive the exact string message we expect for the given
+ * payload.
+ **/
+
+let stringBundleService = SpecialPowers.Cc[
+  "@mozilla.org/intl/stringbundle;1"
+].getService(SpecialPowers.Ci.nsIStringBundleService);
+let localizer = stringBundleService.createBundle(
+  "chrome://global/locale/dom/dom.properties"
+);
+
+/**
+ * Start monitoring the console for the given localized error message string(s)
+ * with the given arguments to be logged.  Call before running code that will
+ * generate the console message.  Pair with a call to
+ * `wait_for_expected_message` invoked after the message should have been
+ * generated.
+ *
+ * Multiple error messages can be expected, just repeat the msgId and args
+ * argument pair as needed.
+ *
+ * @param {String} msgId
+ *   The localization message identifier used in the properties file.
+ * @param {String[]} args
+ *   The list of formatting arguments we expect the error to be generated with.
+ * @return {Object} Promise/handle to pass to wait_for_expected_message.
+ */
+function expect_console_message(/* msgId, args, ... */) {
+  let expectations = [];
+  // process repeated paired arguments of: msgId, args
+  for (let i = 0; i < arguments.length; i += 2) {
+    let msgId = arguments[i];
+    let args = arguments[i + 1];
+    if (args.length === 0) {
+      expectations.push({ errorMessage: localizer.GetStringFromName(msgId) });
+    } else {
+      expectations.push({
+        errorMessage: localizer.formatStringFromName(msgId, args),
+      });
+    }
+  }
+  return new Promise(resolve => {
+    SimpleTest.monitorConsole(resolve, expectations);
+  });
+}
+let expect_console_messages = expect_console_message;
+
+/**
+ * Stop monitoring the console, returning a Promise that will be resolved when
+ * the sentinel console message sent through the async data path has been
+ * received.  The Promise will not reject on failure; instead a mochitest
+ * failure will have been generated by ok(false)/equivalent by the time it is
+ * resolved.
+ */
+function wait_for_expected_message(expectedPromise) {
+  SimpleTest.endMonitorConsole();
+  return expectedPromise;
+}
+
+/**
+ * Derive an absolute URL string from a relative URL to simplify error message
+ * argument generation.
+ */
+function make_absolute_url(relUrl) {
+  return new URL(relUrl, window.location).href;
+}
diff --git a/dom/serviceworkers/test/eval_worker.js b/dom/serviceworkers/test/eval_worker.js
new file mode 100644
index 0000000000..79b4808e66
--- /dev/null
+++ b/dom/serviceworkers/test/eval_worker.js
@@ -0,0 +1 @@
+eval("1+1");
diff --git a/dom/serviceworkers/test/eventsource/eventsource.resource b/dom/serviceworkers/test/eventsource/eventsource.resource
new file mode 100644
index 0000000000..eb62cbd4c5
--- /dev/null
+++ b/dom/serviceworkers/test/eventsource/eventsource.resource
@@ -0,0 +1,22 @@
+:this file must be enconded in utf8
+:and its Content-Type must be equal to text/event-stream
+
+retry:500
+data: 2
+unknow: unknow
+
+event: other_event_name
+retry:500
+data: 2
+unknow: unknow
+
+event: click
+retry:500
+
+event: blur
+retry:500
+
+event:keypress
+retry:500
+
+
diff --git a/dom/serviceworkers/test/eventsource/eventsource.resource^headers^ b/dom/serviceworkers/test/eventsource/eventsource.resource^headers^
new file mode 100644
index 0000000000..5b88be7c32
--- /dev/null
+++ b/dom/serviceworkers/test/eventsource/eventsource.resource^headers^
@@ -0,0 +1,3 @@
+Content-Type: text/event-stream
+Cache-Control: no-cache, must-revalidate
+Access-Control-Allow-Origin: *
diff --git a/dom/serviceworkers/test/eventsource/eventsource_cors_response.html b/dom/serviceworkers/test/eventsource/eventsource_cors_response.html
new file mode 100644
index 0000000000..115a0f5c65
--- /dev/null
+++ b/dom/serviceworkers/test/eventsource/eventsource_cors_response.html
@@ -0,0 +1,75 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1182103 - Test EventSource scenarios with fetch interception</title>
+  <script type="text/javascript">
+
+  var prefix = "http://mochi.test:8888/tests/dom/serviceworkers/test/eventsource/";
+
+  function ok(aCondition, aMessage) {
+    parent.postMessage({status: "callback", data: "ok", condition: aCondition, message: aMessage}, "*");
+  }
+
+  function doUnregister() {
+    navigator.serviceWorker.getRegistration().then(swr => {
+      swr.unregister().then(function(result) {
+        ok(result, "Unregister should return true.");
+        parent.postMessage({status: "callback", data: "done"}, "*");
+      }, function(e) {
+        ok(false, "Unregistering the SW failed with " + e);
+      });
+    });
+  }
+
+  function doEventSource() {
+    var source = new EventSource(prefix + "eventsource.resource");
+    source.onmessage = function(e) {
+      source.onmessage = null;
+      source.close();
+      ok(true, "EventSource should work with cors responses");
+      doUnregister();
+    };
+    source.onerror = function(error) {
+      source.onerror = null;
+      source.close();
+      ok(false, "Something went wrong");
+    };
+  }
+
+  function onLoad() {
+    if (!parent) {
+      dump("eventsource/eventsource_cors_response.html shouldn't be launched directly!");
+    }
+
+    window.addEventListener("message", function onMessage(e) {
+      if (e.data.status === "callback") {
+        switch(e.data.data) {
+          case "eventsource":
+            doEventSource();
+            window.removeEventListener("message", onMessage);
+            break;
+          default:
+            ok(false, "Something went wrong")
+            break
+        }
+      }
+    });
+
+    navigator.serviceWorker.ready.then(function() {
+      parent.postMessage({status: "callback", data: "ready"}, "*");
+    });
+
+    navigator.serviceWorker.addEventListener("message", function(event) {
+      parent.postMessage(event.data, "*");
+    });
+  }
+
+  </script>
+</head>
+<body onload="onLoad()">
+</body>
+</html>
diff --git a/dom/serviceworkers/test/eventsource/eventsource_cors_response_intercept_worker.js b/dom/serviceworkers/test/eventsource/eventsource_cors_response_intercept_worker.js
new file mode 100644
index 0000000000..c2e5d416e7
--- /dev/null
+++ b/dom/serviceworkers/test/eventsource/eventsource_cors_response_intercept_worker.js
@@ -0,0 +1,30 @@
+// Cross origin request
+var prefix = "http://example.com/tests/dom/serviceworkers/test/eventsource/";
+
+self.importScripts("eventsource_worker_helper.js");
+
+self.addEventListener("fetch", function (event) {
+  var request = event.request;
+  var url = new URL(request.url);
+
+  if (
+    url.pathname !==
+    "/tests/dom/serviceworkers/test/eventsource/eventsource.resource"
+  ) {
+    return;
+  }
+
+  ok(request.mode === "cors", "EventSource should make a CORS request");
+  ok(
+    request.cache === "no-store",
+    "EventSource should make a no-store request"
+  );
+  var fetchRequest = new Request(prefix + "eventsource.resource", {
+    mode: "cors",
+  });
+  event.respondWith(
+    fetch(fetchRequest).then(fetchResponse => {
+      return fetchResponse;
+    })
+  );
+});
diff --git a/dom/serviceworkers/test/eventsource/eventsource_mixed_content_cors_response.html b/dom/serviceworkers/test/eventsource/eventsource_mixed_content_cors_response.html
new file mode 100644
index 0000000000..970cae517f
--- /dev/null
+++ b/dom/serviceworkers/test/eventsource/eventsource_mixed_content_cors_response.html
@@ -0,0 +1,75 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1182103 - Test EventSource scenarios with fetch interception</title>
+  <script type="text/javascript">
+
+  var prefix = "https://example.com/tests/dom/serviceworkers/test/eventsource/";
+
+  function ok(aCondition, aMessage) {
+    parent.postMessage({status: "callback", data: "ok", condition: aCondition, message: aMessage}, "*");
+  }
+
+  function doUnregister() {
+    navigator.serviceWorker.getRegistration().then(swr => {
+      swr.unregister().then(function(result) {
+        ok(result, "Unregister should return true.");
+        parent.postMessage({status: "callback", data: "done"}, "*");
+      }, function(e) {
+        ok(false, "Unregistering the SW failed with " + e);
+      });
+    });
+  }
+
+  function doEventSource() {
+    var source = new EventSource(prefix + "eventsource.resource");
+    source.onmessage = function(e) {
+      source.onmessage = null;
+      source.close();
+      ok(false, "Something went wrong");
+    };
+    source.onerror = function(error) {
+      source.onerror = null;
+      source.close();
+      ok(true, "EventSource should not work with mixed content cors responses");
+      doUnregister();
+    };
+  }
+
+  function onLoad() {
+    if (!parent) {
+      dump("eventsource/eventsource_cors_response.html shouldn't be launched directly!");
+    }
+
+    window.addEventListener("message", function onMessage(e) {
+      if (e.data.status === "callback") {
+        switch(e.data.data) {
+          case "eventsource":
+            doEventSource();
+            window.removeEventListener("message", onMessage);
+            break;
+          default:
+            ok(false, "Something went wrong")
+            break
+        }
+      }
+    });
+
+    navigator.serviceWorker.ready.then(function() {
+      parent.postMessage({status: "callback", data: "ready"}, "*");
+    });
+
+    navigator.serviceWorker.addEventListener("message", function(event) {
+      parent.postMessage(event.data, "*");
+    });
+  }
+
+  </script>
+</head>
+<body onload="onLoad()">
+</body>
+</html>
diff --git a/dom/serviceworkers/test/eventsource/eventsource_mixed_content_cors_response_intercept_worker.js b/dom/serviceworkers/test/eventsource/eventsource_mixed_content_cors_response_intercept_worker.js
new file mode 100644
index 0000000000..9cb8d2d61f
--- /dev/null
+++ b/dom/serviceworkers/test/eventsource/eventsource_mixed_content_cors_response_intercept_worker.js
@@ -0,0 +1,29 @@
+var prefix = "http://example.com/tests/dom/serviceworkers/test/eventsource/";
+
+self.importScripts("eventsource_worker_helper.js");
+
+self.addEventListener("fetch", function (event) {
+  var request = event.request;
+  var url = new URL(request.url);
+
+  if (
+    url.pathname !==
+    "/tests/dom/serviceworkers/test/eventsource/eventsource.resource"
+  ) {
+    return;
+  }
+
+  ok(request.mode === "cors", "EventSource should make a CORS request");
+  ok(
+    request.cache === "no-store",
+    "EventSource should make a no-store request"
+  );
+  var fetchRequest = new Request(prefix + "eventsource.resource", {
+    mode: "cors",
+  });
+  event.respondWith(
+    fetch(fetchRequest).then(fetchResponse => {
+      return fetchResponse;
+    })
+  );
+});
diff --git a/dom/serviceworkers/test/eventsource/eventsource_opaque_response.html b/dom/serviceworkers/test/eventsource/eventsource_opaque_response.html
new file mode 100644
index 0000000000..bce12259cc
--- /dev/null
+++ b/dom/serviceworkers/test/eventsource/eventsource_opaque_response.html
@@ -0,0 +1,75 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1182103 - Test EventSource scenarios with fetch interception</title>
+  <script type="text/javascript">
+
+  var prefix = "http://mochi.test:8888/tests/dom/serviceworkers/test/eventsource/";
+
+  function ok(aCondition, aMessage) {
+    parent.postMessage({status: "callback", data: "ok", condition: aCondition, message: aMessage}, "*");
+  }
+
+  function doUnregister() {
+    navigator.serviceWorker.getRegistration().then(swr => {
+      swr.unregister().then(function(result) {
+        ok(result, "Unregister should return true.");
+        parent.postMessage({status: "callback", data: "done"}, "*");
+      }, function(e) {
+        ok(false, "Unregistering the SW failed with " + e);
+      });
+    });
+  }
+
+  function doEventSource() {
+    var source = new EventSource(prefix + "eventsource.resource");
+    source.onmessage = function(e) {
+      source.onmessage = null;
+      source.close();
+      ok(false, "Something went wrong");
+    };
+    source.onerror = function(error) {
+      source.onerror = null;
+      source.close();
+      ok(true, "EventSource should not work with opaque responses");
+      doUnregister();
+    };
+  }
+
+  function onLoad() {
+    if (!parent) {
+      dump("eventsource/eventsource_opaque_response.html shouldn't be launched directly!");
+    }
+
+    window.addEventListener("message", function onMessage(e) {
+      if (e.data.status === "callback") {
+        switch(e.data.data) {
+          case "eventsource":
+            doEventSource();
+            window.removeEventListener("message", onMessage);
+            break;
+          default:
+            ok(false, "Something went wrong")
+            break
+        }
+      }
+    });
+
+    navigator.serviceWorker.ready.then(function() {
+      parent.postMessage({status: "callback", data: "ready"}, "*");
+    });
+
+    navigator.serviceWorker.addEventListener("message", function(event) {
+      parent.postMessage(event.data, "*");
+    });
+  }
+
+  </script>
+</head>
+<body onload="onLoad()">
+</body>
+</html>
diff --git a/dom/serviceworkers/test/eventsource/eventsource_opaque_response_intercept_worker.js b/dom/serviceworkers/test/eventsource/eventsource_opaque_response_intercept_worker.js
new file mode 100644
index 0000000000..5c8c75a161
--- /dev/null
+++ b/dom/serviceworkers/test/eventsource/eventsource_opaque_response_intercept_worker.js
@@ -0,0 +1,30 @@
+// Cross origin request
+var prefix = "http://example.com/tests/dom/serviceworkers/test/eventsource/";
+
+self.importScripts("eventsource_worker_helper.js");
+
+self.addEventListener("fetch", function (event) {
+  var request = event.request;
+  var url = new URL(request.url);
+
+  if (
+    url.pathname !==
+    "/tests/dom/serviceworkers/test/eventsource/eventsource.resource"
+  ) {
+    return;
+  }
+
+  ok(request.mode === "cors", "EventSource should make a CORS request");
+  ok(
+    request.cache === "no-store",
+    "EventSource should make a no-store request"
+  );
+  var fetchRequest = new Request(prefix + "eventsource.resource", {
+    mode: "no-cors",
+  });
+  event.respondWith(
+    fetch(fetchRequest).then(fetchResponse => {
+      return fetchResponse;
+    })
+  );
+});
diff --git a/dom/serviceworkers/test/eventsource/eventsource_register_worker.html b/dom/serviceworkers/test/eventsource/eventsource_register_worker.html
new file mode 100644
index 0000000000..59e8e92ab6
--- /dev/null
+++ b/dom/serviceworkers/test/eventsource/eventsource_register_worker.html
@@ -0,0 +1,27 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1182103 - Test EventSource scenarios with fetch interception</title>
+  <script type="text/javascript">
+
+  function getURLParam (aTarget, aValue) {
+    return decodeURI(aTarget.search.replace(new RegExp("^(?:.*[&\\?]" + encodeURI(aValue).replace(/[\.\+\*]/g, "\\$&") + "(?:\\=([^&]*))?)?.*$", "i"), "$1"));
+  }
+
+  function onLoad() {
+    navigator.serviceWorker.ready.then(function() {
+      parent.postMessage({status: "callback", data: "done"}, "*");
+    });
+
+    navigator.serviceWorker.register(getURLParam(document.location, "script"), {scope: "."});
+  }
+
+  </script>
+</head>
+<body onload="onLoad()">
+</body>
+</html>
diff --git a/dom/serviceworkers/test/eventsource/eventsource_synthetic_response.html b/dom/serviceworkers/test/eventsource/eventsource_synthetic_response.html
new file mode 100644
index 0000000000..7f6228c91e
--- /dev/null
+++ b/dom/serviceworkers/test/eventsource/eventsource_synthetic_response.html
@@ -0,0 +1,75 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1182103 - Test EventSource scenarios with fetch interception</title>
+  <script type="text/javascript">
+
+  var prefix = "http://mochi.test:8888/tests/dom/serviceworkers/test/eventsource/";
+
+  function ok(aCondition, aMessage) {
+    parent.postMessage({status: "callback", data: "ok", condition: aCondition, message: aMessage}, "*");
+  }
+
+  function doUnregister() {
+    navigator.serviceWorker.getRegistration().then(swr => {
+      swr.unregister().then(function(result) {
+        ok(result, "Unregister should return true.");
+        parent.postMessage({status: "callback", data: "done"}, "*");
+      }, function(e) {
+        ok(false, "Unregistering the SW failed with " + e);
+      });
+    });
+  }
+
+  function doEventSource() {
+    var source = new EventSource(prefix + "eventsource.resource");
+    source.onmessage = function(e) {
+      source.onmessage = null;
+      source.close();
+      ok(true, "EventSource should work with synthetic responses");
+      doUnregister();
+    };
+    source.onerror = function(error) {
+      source.onmessage = null;
+      source.close();
+      ok(false, "Something went wrong");
+    };
+  }
+
+  function onLoad() {
+    if (!parent) {
+      dump("eventsource/eventsource_synthetic_response.html shouldn't be launched directly!");
+    }
+
+    window.addEventListener("message", function onMessage(e) {
+      if (e.data.status === "callback") {
+        switch(e.data.data) {
+          case "eventsource":
+            doEventSource();
+            window.removeEventListener("message", onMessage);
+            break;
+          default:
+            ok(false, "Something went wrong")
+            break
+        }
+      }
+    });
+
+    navigator.serviceWorker.ready.then(function() {
+      parent.postMessage({status: "callback", data: "ready"}, "*");
+    });
+
+    navigator.serviceWorker.addEventListener("message", function(event) {
+      parent.postMessage(event.data, "*");
+    });
+  }
+
+  </script>
+</head>
+<body onload="onLoad()">
+</body>
+</html>
diff --git a/dom/serviceworkers/test/eventsource/eventsource_synthetic_response_intercept_worker.js b/dom/serviceworkers/test/eventsource/eventsource_synthetic_response_intercept_worker.js
new file mode 100644
index 0000000000..72780e2979
--- /dev/null
+++ b/dom/serviceworkers/test/eventsource/eventsource_synthetic_response_intercept_worker.js
@@ -0,0 +1,27 @@
+self.importScripts("eventsource_worker_helper.js");
+
+self.addEventListener("fetch", function (event) {
+  var request = event.request;
+  var url = new URL(request.url);
+
+  if (
+    url.pathname !==
+    "/tests/dom/serviceworkers/test/eventsource/eventsource.resource"
+  ) {
+    return;
+  }
+
+  ok(request.mode === "cors", "EventSource should make a CORS request");
+  var headerList = {
+    "Content-Type": "text/event-stream",
+    "Cache-Control": "no-cache, must-revalidate",
+  };
+  var headers = new Headers(headerList);
+  var init = {
+    headers,
+    mode: "cors",
+  };
+  var body = "data: data0\r\r";
+  var response = new Response(body, init);
+  event.respondWith(response);
+});
diff --git a/dom/serviceworkers/test/eventsource/eventsource_worker_helper.js b/dom/serviceworkers/test/eventsource/eventsource_worker_helper.js
new file mode 100644
index 0000000000..676d2a4bbe
--- /dev/null
+++ b/dom/serviceworkers/test/eventsource/eventsource_worker_helper.js
@@ -0,0 +1,17 @@
+function ok(aCondition, aMessage) {
+  return new Promise(function (resolve, reject) {
+    self.clients.matchAll().then(function (res) {
+      if (!res.length) {
+        reject();
+        return;
+      }
+      res[0].postMessage({
+        status: "callback",
+        data: "ok",
+        condition: aCondition,
+        message: aMessage,
+      });
+      resolve();
+    });
+  });
+}
diff --git a/dom/serviceworkers/test/fetch.js b/dom/serviceworkers/test/fetch.js
new file mode 100644
index 0000000000..bf1bb4acb3
--- /dev/null
+++ b/dom/serviceworkers/test/fetch.js
@@ -0,0 +1,33 @@
+function get_query_params(url) {
+  var search = new URL(url).search;
+  if (!search) {
+    return {};
+  }
+  var ret = {};
+  var params = search.substring(1).split("&");
+  params.forEach(function (param) {
+    var element = param.split("=");
+    ret[decodeURIComponent(element[0])] = decodeURIComponent(element[1]);
+  });
+  return ret;
+}
+
+addEventListener("fetch", function (event) {
+  if (event.request.url.includes("fail.html")) {
+    event.respondWith(fetch("hello.html", { integrity: "abc" }));
+  } else if (event.request.url.includes("fake.html")) {
+    event.respondWith(fetch("hello.html"));
+  } else if (event.request.url.includes("file_js_cache")) {
+    event.respondWith(fetch(event.request));
+  } else if (event.request.url.includes("redirect")) {
+    let param = get_query_params(event.request.url);
+    let url = param.url;
+    let mode = param.mode;
+
+    event.respondWith(fetch(url, { mode }));
+  }
+});
+
+addEventListener("activate", function (event) {
+  event.waitUntil(clients.claim());
+});
diff --git a/dom/serviceworkers/test/fetch/cookie/cookie_test.js b/dom/serviceworkers/test/fetch/cookie/cookie_test.js
new file mode 100644
index 0000000000..4102b4b341
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/cookie/cookie_test.js
@@ -0,0 +1,11 @@
+self.addEventListener("fetch", function (event) {
+  if (event.request.url.includes("synth.html")) {
+    var body =
+      "<script>" +
+      'window.parent.postMessage({status: "done", cookie: document.cookie}, "*");' +
+      "</script>";
+    event.respondWith(
+      new Response(body, { headers: { "Content-Type": "text/html" } })
+    );
+  }
+});
diff --git a/dom/serviceworkers/test/fetch/cookie/register.html b/dom/serviceworkers/test/fetch/cookie/register.html
new file mode 100644
index 0000000000..99eabaf0a2
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/cookie/register.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<script src="../../utils.js"></script>
+<script>
+  function ok(v, msg) {
+    window.parent.postMessage({status: "ok", result: !!v, message: msg}, "*");
+  }
+
+  function done(reg) {
+    ok(reg.active, "The active worker should be available.");
+    window.parent.postMessage({status: "registrationdone"}, "*");
+  }
+
+  document.cookie = "foo=bar";
+
+  navigator.serviceWorker.register("cookie_test.js", {scope: "."})
+                         .then(reg => {
+                           return waitForState(reg.installing, "activated", reg);
+                         }).then(done);
+</script>
diff --git a/dom/serviceworkers/test/fetch/cookie/unregister.html b/dom/serviceworkers/test/fetch/cookie/unregister.html
new file mode 100644
index 0000000000..1f13508fa7
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/cookie/unregister.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<script>
+  navigator.serviceWorker.getRegistration(".").then(function(registration) {
+    registration.unregister().then(function(success) {
+      if (success) {
+        window.parent.postMessage({status: "unregistrationdone"}, "*");
+      }
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  });
+</script>
diff --git a/dom/serviceworkers/test/fetch/deliver-gzip.sjs b/dom/serviceworkers/test/fetch/deliver-gzip.sjs
new file mode 100644
index 0000000000..d7cbdef06e
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/deliver-gzip.sjs
@@ -0,0 +1,21 @@
+"use strict";
+
+function handleRequest(request, response) {
+  // The string "hello" repeated 10 times followed by newline. Compressed using gzip.
+  // prettier-ignore
+  let bytes = [0x1f, 0x8b, 0x08, 0x08, 0x4d, 0xe2, 0xf9, 0x54, 0x00, 0x03, 0x68,
+               0x65, 0x6c, 0x6c, 0x6f, 0x00, 0xcb, 0x48, 0xcd, 0xc9, 0xc9, 0xcf,
+               0x20, 0x85, 0xe0, 0x02, 0x00, 0xf5, 0x4b, 0x38, 0xcf, 0x33, 0x00,
+               0x00, 0x00];
+
+  response.setHeader("Content-Encoding", "gzip", false);
+  response.setHeader("Content-Length", "" + bytes.length, false);
+  response.setHeader("Content-Type", "text/plain", false);
+
+  let bos = Components.classes[
+    "@mozilla.org/binaryoutputstream;1"
+  ].createInstance(Components.interfaces.nsIBinaryOutputStream);
+  bos.setOutputStream(response.bodyOutputStream);
+
+  bos.writeByteArray(bytes);
+}
diff --git a/dom/serviceworkers/test/fetch/fetch_tests.js b/dom/serviceworkers/test/fetch/fetch_tests.js
new file mode 100644
index 0000000000..69b8a89679
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/fetch_tests.js
@@ -0,0 +1,716 @@
+var origin = "http://mochi.test:8888";
+
+function fetchXHRWithMethod(name, method, onload, onerror, headers) {
+  expectAsyncResult();
+
+  onload =
+    onload ||
+    function () {
+      my_ok(false, "XHR load should not complete successfully");
+      finish();
+    };
+  onerror =
+    onerror ||
+    function () {
+      my_ok(
+        false,
+        "XHR load for " + name + " should be intercepted successfully"
+      );
+      finish();
+    };
+
+  var x = new XMLHttpRequest();
+  x.open(method, name, true);
+  x.onload = function () {
+    onload(x);
+  };
+  x.onerror = function () {
+    onerror(x);
+  };
+  headers = headers || [];
+  headers.forEach(function (header) {
+    x.setRequestHeader(header[0], header[1]);
+  });
+  x.send();
+}
+
+var corsServerPath =
+  "/tests/dom/security/test/cors/file_CrossSiteXHR_server.sjs";
+var corsServerURL = "http://example.com" + corsServerPath;
+
+function redirectURL(hops) {
+  return (
+    hops[0].server +
+    corsServerPath +
+    "?hop=1&hops=" +
+    encodeURIComponent(JSON.stringify(hops))
+  );
+}
+
+function fetchXHR(name, onload, onerror, headers) {
+  return fetchXHRWithMethod(name, "GET", onload, onerror, headers);
+}
+
+fetchXHR("bare-synthesized.txt", function (xhr) {
+  my_ok(xhr.status == 200, "load should be successful");
+  my_ok(
+    xhr.responseText == "synthesized response body",
+    "load should have synthesized response"
+  );
+  finish();
+});
+
+fetchXHR("test-respondwith-response.txt", function (xhr) {
+  my_ok(
+    xhr.status == 200,
+    "test-respondwith-response load should be successful"
+  );
+  my_ok(
+    xhr.responseText == "test-respondwith-response response body",
+    "load should have response"
+  );
+  finish();
+});
+
+fetchXHR("synthesized-404.txt", function (xhr) {
+  my_ok(xhr.status == 404, "load should 404");
+  my_ok(
+    xhr.responseText == "synthesized response body",
+    "404 load should have synthesized response"
+  );
+  finish();
+});
+
+fetchXHR("synthesized-headers.txt", function (xhr) {
+  my_ok(xhr.status == 200, "load should be successful");
+  my_ok(
+    xhr.getResponseHeader("X-Custom-Greeting") === "Hello",
+    "custom header should be set"
+  );
+  my_ok(
+    xhr.responseText == "synthesized response body",
+    "custom header load should have synthesized response"
+  );
+  finish();
+});
+
+fetchXHR("synthesized-redirect-real-file.txt", function (xhr) {
+  dump("Got status AARRGH " + xhr.status + " " + xhr.responseText + "\n");
+  my_ok(xhr.status == 200, "load should be successful");
+  my_ok(
+    xhr.responseText == "This is a real file.\n",
+    "Redirect to real file should complete."
+  );
+  finish();
+});
+
+fetchXHR("synthesized-redirect-twice-real-file.txt", function (xhr) {
+  my_ok(xhr.status == 200, "load should be successful");
+  my_ok(
+    xhr.responseText == "This is a real file.\n",
+    "Redirect to real file (twice) should complete."
+  );
+  finish();
+});
+
+fetchXHR("synthesized-redirect-synthesized.txt", function (xhr) {
+  my_ok(xhr.status == 200, "synth+redirect+synth load should be successful");
+  my_ok(
+    xhr.responseText == "synthesized response body",
+    "load should have redirected+synthesized response"
+  );
+  finish();
+});
+
+fetchXHR("synthesized-redirect-twice-synthesized.txt", function (xhr) {
+  my_ok(
+    xhr.status == 200,
+    "synth+redirect+synth (twice) load should be successful"
+  );
+  my_ok(
+    xhr.responseText == "synthesized response body",
+    "load should have redirected+synthesized (twice) response"
+  );
+  finish();
+});
+
+fetchXHR("redirect.sjs", function (xhr) {
+  my_ok(xhr.status == 404, "redirected load should be uninterrupted");
+  finish();
+});
+
+fetchXHR("ignored.txt", function (xhr) {
+  my_ok(xhr.status == 404, "load should be uninterrupted");
+  finish();
+});
+
+fetchXHR("rejected.txt", null, function (xhr) {
+  my_ok(xhr.status == 0, "load should not complete");
+  finish();
+});
+
+fetchXHR("nonresponse.txt", null, function (xhr) {
+  my_ok(xhr.status == 0, "load should not complete");
+  finish();
+});
+
+fetchXHR("nonresponse2.txt", null, function (xhr) {
+  my_ok(xhr.status == 0, "load should not complete");
+  finish();
+});
+
+fetchXHR("nonpromise.txt", null, function (xhr) {
+  my_ok(xhr.status == 0, "load should not complete");
+  finish();
+});
+
+fetchXHR(
+  "headers.txt",
+  function (xhr) {
+    my_ok(xhr.status == 200, "load should be successful");
+    my_ok(xhr.responseText == "1", "request header checks should have passed");
+    finish();
+  },
+  null,
+  [
+    ["X-Test1", "header1"],
+    ["X-Test2", "header2"],
+  ]
+);
+
+fetchXHR("http://user:pass@mochi.test:8888/user-pass", function (xhr) {
+  my_ok(xhr.status == 200, "load should be successful");
+  my_ok(
+    xhr.responseText == "http://user:pass@mochi.test:8888/user-pass",
+    "The username and password should be preserved"
+  );
+  finish();
+});
+
+fetchXHR("readable-stream.txt", function (xhr) {
+  my_ok(xhr.status == 200, "loading completed");
+  my_ok(xhr.responseText == "Hello!", "The message is correct!");
+  finish();
+});
+
+fetchXHR(
+  "readable-stream-locked.txt",
+  function (xhr) {
+    my_ok(false, "This should not be called!");
+    finish();
+  },
+  function () {
+    my_ok(true, "The exception has been correctly handled!");
+    finish();
+  }
+);
+
+fetchXHR(
+  "readable-stream-with-exception.txt",
+  function (xhr) {
+    my_ok(false, "This should not be called!");
+    finish();
+  },
+  function () {
+    my_ok(true, "The exception has been correctly handled!");
+    finish();
+  }
+);
+
+fetchXHR(
+  "readable-stream-with-exception2.txt",
+  function (xhr) {
+    my_ok(false, "This should not be called!");
+    finish();
+  },
+  function () {
+    my_ok(true, "The exception has been correctly handled!");
+    finish();
+  }
+);
+
+fetchXHR(
+  "readable-stream-already-consumed.txt",
+  function (xhr) {
+    my_ok(false, "This should not be called!");
+    finish();
+  },
+  function () {
+    my_ok(true, "The exception has been correctly handled!");
+    finish();
+  }
+);
+
+var expectedUncompressedResponse = "";
+for (let i = 0; i < 10; ++i) {
+  expectedUncompressedResponse += "hello";
+}
+expectedUncompressedResponse += "\n";
+
+// ServiceWorker does not intercept, at which point the network request should
+// be correctly decoded.
+fetchXHR("deliver-gzip.sjs", function (xhr) {
+  my_ok(xhr.status == 200, "network gzip load should be successful");
+  my_ok(
+    xhr.responseText == expectedUncompressedResponse,
+    "network gzip load should have synthesized response."
+  );
+  my_ok(
+    xhr.getResponseHeader("Content-Encoding") == "gzip",
+    "network Content-Encoding should be gzip."
+  );
+  my_ok(
+    xhr.getResponseHeader("Content-Length") == "35",
+    "network Content-Length should be of original gzipped file."
+  );
+  finish();
+});
+
+fetchXHR("hello.gz", function (xhr) {
+  my_ok(xhr.status == 200, "gzip load should be successful");
+  my_ok(
+    xhr.responseText == expectedUncompressedResponse,
+    "gzip load should have synthesized response."
+  );
+  my_ok(
+    xhr.getResponseHeader("Content-Encoding") == "gzip",
+    "Content-Encoding should be gzip."
+  );
+  my_ok(
+    xhr.getResponseHeader("Content-Length") == "35",
+    "Content-Length should be of original gzipped file."
+  );
+  finish();
+});
+
+fetchXHR("hello-after-extracting.gz", function (xhr) {
+  my_ok(xhr.status == 200, "gzip load after extracting should be successful");
+  my_ok(
+    xhr.responseText == expectedUncompressedResponse,
+    "gzip load after extracting should have synthesized response."
+  );
+  my_ok(
+    xhr.getResponseHeader("Content-Encoding") == "gzip",
+    "Content-Encoding after extracting should be gzip."
+  );
+  my_ok(
+    xhr.getResponseHeader("Content-Length") == "35",
+    "Content-Length after extracting should be of original gzipped file."
+  );
+  finish();
+});
+
+fetchXHR(corsServerURL + "?status=200&allowOrigin=*", function (xhr) {
+  my_ok(
+    xhr.status == 200,
+    "cross origin load with correct headers should be successful"
+  );
+  my_ok(
+    xhr.getResponseHeader("access-control-allow-origin") == null,
+    "cors headers should be filtered out"
+  );
+  finish();
+});
+
+// Verify origin header is sent properly even when we have a no-intercept SW.
+var uriOrigin = encodeURIComponent(origin);
+fetchXHR(
+  "http://example.org" +
+    corsServerPath +
+    "?ignore&status=200&origin=" +
+    uriOrigin +
+    "&allowOrigin=" +
+    uriOrigin,
+  function (xhr) {
+    my_ok(
+      xhr.status == 200,
+      "cross origin load with correct headers should be successful"
+    );
+    my_ok(
+      xhr.getResponseHeader("access-control-allow-origin") == null,
+      "cors headers should be filtered out"
+    );
+    finish();
+  }
+);
+
+// Verify that XHR is considered CORS tainted even when original URL is same-origin
+// redirected to cross-origin.
+fetchXHR(
+  redirectURL([
+    { server: origin },
+    { server: "http://example.org", allowOrigin: origin },
+  ]),
+  function (xhr) {
+    my_ok(
+      xhr.status == 200,
+      "cross origin load with correct headers should be successful"
+    );
+    my_ok(
+      xhr.getResponseHeader("access-control-allow-origin") == null,
+      "cors headers should be filtered out"
+    );
+    finish();
+  }
+);
+
+// Test that CORS preflight requests cannot be intercepted. Performs a
+// cross-origin XHR that the SW chooses not to intercept. This requires a
+// preflight request, which the SW must not be allowed to intercept.
+fetchXHR(
+  corsServerURL + "?status=200&allowOrigin=*",
+  null,
+  function (xhr) {
+    my_ok(
+      xhr.status == 0,
+      "cross origin load with incorrect headers should be a failure"
+    );
+    finish();
+  },
+  [["X-Unsafe", "unsafe"]]
+);
+
+// Test that CORS preflight requests cannot be intercepted. Performs a
+// cross-origin XHR that the SW chooses to intercept and respond with a
+// cross-origin fetch. This requires a preflight request, which the SW must not
+// be allowed to intercept.
+fetchXHR(
+  "http://example.org" + corsServerPath + "?status=200&allowOrigin=*",
+  null,
+  function (xhr) {
+    my_ok(
+      xhr.status == 0,
+      "cross origin load with incorrect headers should be a failure"
+    );
+    finish();
+  },
+  [["X-Unsafe", "unsafe"]]
+);
+
+// Test that when the page fetches a url the controlling SW forces a redirect to
+// another location. This other location fetch should also be intercepted by
+// the SW.
+fetchXHR("something.txt", function (xhr) {
+  my_ok(xhr.status == 200, "load should be successful");
+  my_ok(
+    xhr.responseText == "something else response body",
+    "load should have something else"
+  );
+  finish();
+});
+
+// Test fetch will internally get it's SkipServiceWorker flag set. The request is
+// made from the SW through fetch(). fetch() fetches a server-side JavaScript
+// file that force a redirect. The redirect location fetch does not go through
+// the SW.
+fetchXHR("redirect_serviceworker.sjs", function (xhr) {
+  my_ok(xhr.status == 200, "load should be successful");
+  my_ok(
+    xhr.responseText == "// empty worker, always succeed!\n",
+    "load should have redirection content"
+  );
+  finish();
+});
+
+fetchXHR(
+  "empty-header",
+  function (xhr) {
+    my_ok(xhr.status == 200, "load should be successful");
+    my_ok(
+      xhr.responseText == "emptyheader",
+      "load should have the expected content"
+    );
+    finish();
+  },
+  null,
+  [["emptyheader", ""]]
+);
+
+expectAsyncResult();
+fetch(
+  "http://example.com/tests/dom/security/test/cors/file_CrossSiteXHR_server.sjs?status=200&allowOrigin=*"
+).then(
+  function (res) {
+    my_ok(res.ok, "Valid CORS request should receive valid response");
+    my_ok(res.type == "cors", "Response type should be CORS");
+    res.text().then(function (body) {
+      my_ok(
+        body === "<res>hello pass</res>\n",
+        "cors response body should match"
+      );
+      finish();
+    });
+  },
+  function (e) {
+    my_ok(false, "CORS Fetch failed");
+    finish();
+  }
+);
+
+expectAsyncResult();
+fetch(
+  "http://example.com/tests/dom/security/test/cors/file_CrossSiteXHR_server.sjs?status=200",
+  { mode: "no-cors" }
+).then(
+  function (res) {
+    my_ok(res.type == "opaque", "Response type should be opaque");
+    my_ok(res.status == 0, "Status should be 0");
+    res.text().then(function (body) {
+      my_ok(body === "", "opaque response body should be empty");
+      finish();
+    });
+  },
+  function (e) {
+    my_ok(false, "no-cors Fetch failed");
+    finish();
+  }
+);
+
+expectAsyncResult();
+fetch("opaque-on-same-origin").then(
+  function (res) {
+    my_ok(
+      false,
+      "intercepted opaque response for non no-cors request should fail."
+    );
+    finish();
+  },
+  function (e) {
+    my_ok(
+      true,
+      "intercepted opaque response for non no-cors request should fail."
+    );
+    finish();
+  }
+);
+
+expectAsyncResult();
+fetch("http://example.com/opaque-no-cors", { mode: "no-cors" }).then(
+  function (res) {
+    my_ok(
+      res.type == "opaque",
+      "intercepted opaque response for no-cors request should have type opaque."
+    );
+    finish();
+  },
+  function (e) {
+    my_ok(
+      false,
+      "intercepted opaque response for no-cors request should pass."
+    );
+    finish();
+  }
+);
+
+expectAsyncResult();
+fetch("http://example.com/cors-for-no-cors", { mode: "no-cors" }).then(
+  function (res) {
+    my_ok(
+      res.type == "cors",
+      "synthesize CORS response should result in outer CORS response"
+    );
+    finish();
+  },
+  function (e) {
+    my_ok(false, "cors-for-no-cors request should not reject");
+    finish();
+  }
+);
+
+function arrayBufferFromString(str) {
+  var arr = new Uint8Array(str.length);
+  for (let i = 0; i < str.length; ++i) {
+    arr[i] = str.charCodeAt(i);
+  }
+  return arr;
+}
+
+expectAsyncResult();
+fetch(new Request("body-simple", { method: "POST", body: "my body" }))
+  .then(function (res) {
+    return res.text();
+  })
+  .then(function (body) {
+    my_ok(
+      body == "my bodymy body",
+      "the body of the intercepted fetch should be visible in the SW"
+    );
+    finish();
+  });
+
+expectAsyncResult();
+fetch(
+  new Request("body-arraybufferview", {
+    method: "POST",
+    body: arrayBufferFromString("my body"),
+  })
+)
+  .then(function (res) {
+    return res.text();
+  })
+  .then(function (body) {
+    my_ok(
+      body == "my bodymy body",
+      "the ArrayBufferView body of the intercepted fetch should be visible in the SW"
+    );
+    finish();
+  });
+
+expectAsyncResult();
+fetch(
+  new Request("body-arraybuffer", {
+    method: "POST",
+    body: arrayBufferFromString("my body").buffer,
+  })
+)
+  .then(function (res) {
+    return res.text();
+  })
+  .then(function (body) {
+    my_ok(
+      body == "my bodymy body",
+      "the ArrayBuffer body of the intercepted fetch should be visible in the SW"
+    );
+    finish();
+  });
+
+expectAsyncResult();
+var usp = new URLSearchParams();
+usp.set("foo", "bar");
+usp.set("baz", "qux");
+fetch(new Request("body-urlsearchparams", { method: "POST", body: usp }))
+  .then(function (res) {
+    return res.text();
+  })
+  .then(function (body) {
+    my_ok(
+      body == "foo=bar&baz=quxfoo=bar&baz=qux",
+      "the URLSearchParams body of the intercepted fetch should be visible in the SW"
+    );
+    finish();
+  });
+
+expectAsyncResult();
+var fd = new FormData();
+fd.set("foo", "bar");
+fd.set("baz", "qux");
+fetch(new Request("body-formdata", { method: "POST", body: fd }))
+  .then(function (res) {
+    return res.text();
+  })
+  .then(function (body) {
+    my_ok(
+      body.indexOf('Content-Disposition: form-data; name="foo"\r\n\r\nbar') <
+        body.indexOf('Content-Disposition: form-data; name="baz"\r\n\r\nqux'),
+      "the FormData body of the intercepted fetch should be visible in the SW"
+    );
+    finish();
+  });
+
+expectAsyncResult();
+fetch(
+  new Request("body-blob", {
+    method: "POST",
+    body: new Blob(new String("my body")),
+  })
+)
+  .then(function (res) {
+    return res.text();
+  })
+  .then(function (body) {
+    my_ok(
+      body == "my bodymy body",
+      "the Blob body of the intercepted fetch should be visible in the SW"
+    );
+    finish();
+  });
+
+expectAsyncResult();
+fetch("interrupt.sjs").then(
+  function (res) {
+    my_ok(true, "interrupted fetch succeeded");
+    res.text().then(
+      function (body) {
+        my_ok(false, "interrupted fetch shouldn't have complete body");
+        finish();
+      },
+      function () {
+        my_ok(true, "interrupted fetch shouldn't have complete body");
+        finish();
+      }
+    );
+  },
+  function (e) {
+    my_ok(false, "interrupted fetch failed");
+    finish();
+  }
+);
+
+["DELETE", "GET", "HEAD", "OPTIONS", "POST", "PUT"].forEach(function (method) {
+  fetchXHRWithMethod("xhr-method-test.txt", method, function (xhr) {
+    my_ok(xhr.status == 200, method + " load should be successful");
+    if (method === "HEAD") {
+      my_ok(
+        xhr.responseText == "",
+        method + "load should not have synthesized response"
+      );
+    } else {
+      my_ok(
+        xhr.responseText == "intercepted " + method,
+        method + " load should have synthesized response"
+      );
+    }
+    finish();
+  });
+});
+
+expectAsyncResult();
+fetch(new Request("empty-header", { headers: { emptyheader: "" } }))
+  .then(function (res) {
+    return res.text();
+  })
+  .then(
+    function (body) {
+      my_ok(
+        body == "emptyheader",
+        "The empty header was observed in the fetch event"
+      );
+      finish();
+    },
+    function (err) {
+      my_ok(false, "A promise was rejected with " + err);
+      finish();
+    }
+  );
+
+expectAsyncResult();
+fetch("fetchevent-extendable")
+  .then(function (res) {
+    return res.text();
+  })
+  .then(
+    function (body) {
+      my_ok(body == "extendable", "FetchEvent inherits from ExtendableEvent");
+      finish();
+    },
+    function (err) {
+      my_ok(false, "A promise was rejected with " + err);
+      finish();
+    }
+  );
+
+expectAsyncResult();
+fetch("fetchevent-request")
+  .then(function (res) {
+    return res.text();
+  })
+  .then(
+    function (body) {
+      my_ok(body == "non-nullable", "FetchEvent.request must be non-nullable");
+      finish();
+    },
+    function (err) {
+      my_ok(false, "A promise was rejected with " + err);
+      finish();
+    }
+  );
diff --git a/dom/serviceworkers/test/fetch/fetch_worker_script.js b/dom/serviceworkers/test/fetch/fetch_worker_script.js
new file mode 100644
index 0000000000..6eb0b18a77
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/fetch_worker_script.js
@@ -0,0 +1,28 @@
+function my_ok(v, msg) {
+  postMessage({ type: "ok", value: v, msg });
+}
+
+function finish() {
+  postMessage("finish");
+}
+
+function expectAsyncResult() {
+  postMessage("expect");
+}
+
+expectAsyncResult();
+try {
+  var success = false;
+  importScripts("nonexistent_imported_script.js");
+} catch (x) {}
+
+my_ok(success, "worker imported script should be intercepted");
+finish();
+
+function check_intercepted_script() {
+  success = true;
+}
+
+importScripts("fetch_tests.js");
+
+finish(); //corresponds to the gExpected increment before creating this worker
diff --git a/dom/serviceworkers/test/fetch/hsts/embedder.html b/dom/serviceworkers/test/fetch/hsts/embedder.html
new file mode 100644
index 0000000000..ad44809042
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/hsts/embedder.html
@@ -0,0 +1,7 @@
+<!DOCTYPE html>
+<script>
+  window.onmessage = function(e) {
+    window.parent.postMessage(e.data, "*");
+  };
+</script>
+<iframe src="http://example.com/tests/dom/serviceworkers/test/fetch/hsts/index.html"></iframe>
diff --git a/dom/serviceworkers/test/fetch/hsts/hsts_test.js b/dom/serviceworkers/test/fetch/hsts/hsts_test.js
new file mode 100644
index 0000000000..74b9ed23ba
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/hsts/hsts_test.js
@@ -0,0 +1,11 @@
+self.addEventListener("fetch", function (event) {
+  if (event.request.url.includes("index.html")) {
+    event.respondWith(fetch("realindex.html"));
+  } else if (event.request.url.includes("image-20px.png")) {
+    if (event.request.url.indexOf("https://") == 0) {
+      event.respondWith(fetch("image-40px.png"));
+    } else {
+      event.respondWith(Response.error());
+    }
+  }
+});
diff --git a/dom/serviceworkers/test/fetch/hsts/image-20px.png b/dom/serviceworkers/test/fetch/hsts/image-20px.png
new file mode 100644
index 0000000000..ae6a8a6b88
Binary files /dev/null and b/dom/serviceworkers/test/fetch/hsts/image-20px.png differ
diff --git a/dom/serviceworkers/test/fetch/hsts/image-40px.png b/dom/serviceworkers/test/fetch/hsts/image-40px.png
new file mode 100644
index 0000000000..fe391dc8a2
Binary files /dev/null and b/dom/serviceworkers/test/fetch/hsts/image-40px.png differ
diff --git a/dom/serviceworkers/test/fetch/hsts/image.html b/dom/serviceworkers/test/fetch/hsts/image.html
new file mode 100644
index 0000000000..7036ea954e
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/hsts/image.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<script>
+onload=function(){
+  var img = new Image();
+  img.src = "http://example.com/tests/dom/serviceworkers/test/fetch/hsts/image-20px.png";
+  img.onload = function() {
+    window.parent.postMessage({status: "image", data: img.width}, "*");
+  };
+  img.onerror = function() {
+    window.parent.postMessage({status: "image", data: "error"}, "*");
+  };
+};
+</script>
diff --git a/dom/serviceworkers/test/fetch/hsts/realindex.html b/dom/serviceworkers/test/fetch/hsts/realindex.html
new file mode 100644
index 0000000000..e7d282fe83
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/hsts/realindex.html
@@ -0,0 +1,8 @@
+<!DOCTYPE html>
+<script>
+  var securityInfoPresent = !!SpecialPowers.wrap(window).docShell.currentDocumentChannel.securityInfo;
+  window.parent.postMessage({status: "protocol",
+                             data: location.protocol,
+                             securityInfoPresent},
+                            "*");
+</script>
diff --git a/dom/serviceworkers/test/fetch/hsts/register.html b/dom/serviceworkers/test/fetch/hsts/register.html
new file mode 100644
index 0000000000..bcdc146aec
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/hsts/register.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<script>
+  function ok(v, msg) {
+    window.parent.postMessage({status: "ok", result: !!v, message: msg}, "*");
+  }
+
+  function done(reg) {
+    ok(reg.active, "The active worker should be available.");
+    window.parent.postMessage({status: "registrationdone"}, "*");
+  }
+
+  navigator.serviceWorker.ready.then(done);
+  navigator.serviceWorker.register("hsts_test.js", {scope: "."});
+</script>
diff --git a/dom/serviceworkers/test/fetch/hsts/register.html^headers^ b/dom/serviceworkers/test/fetch/hsts/register.html^headers^
new file mode 100644
index 0000000000..a46bf65bd9
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/hsts/register.html^headers^
@@ -0,0 +1,2 @@
+Cache-Control: no-cache
+Strict-Transport-Security: max-age=60
diff --git a/dom/serviceworkers/test/fetch/hsts/unregister.html b/dom/serviceworkers/test/fetch/hsts/unregister.html
new file mode 100644
index 0000000000..1f13508fa7
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/hsts/unregister.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<script>
+  navigator.serviceWorker.getRegistration(".").then(function(registration) {
+    registration.unregister().then(function(success) {
+      if (success) {
+        window.parent.postMessage({status: "unregistrationdone"}, "*");
+      }
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  });
+</script>
diff --git a/dom/serviceworkers/test/fetch/https/clonedresponse/https_test.js b/dom/serviceworkers/test/fetch/https/clonedresponse/https_test.js
new file mode 100644
index 0000000000..8ab34123af
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/https/clonedresponse/https_test.js
@@ -0,0 +1,19 @@
+self.addEventListener("install", function (event) {
+  event.waitUntil(
+    caches.open("cache").then(function (cache) {
+      return cache.add("index.html");
+    })
+  );
+});
+
+self.addEventListener("fetch", function (event) {
+  if (event.request.url.includes("index.html")) {
+    event.respondWith(
+      new Promise(function (resolve, reject) {
+        caches.match(event.request).then(function (response) {
+          resolve(response.clone());
+        });
+      })
+    );
+  }
+});
diff --git a/dom/serviceworkers/test/fetch/https/clonedresponse/index.html b/dom/serviceworkers/test/fetch/https/clonedresponse/index.html
new file mode 100644
index 0000000000..a435548443
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/https/clonedresponse/index.html
@@ -0,0 +1,4 @@
+<!DOCTYPE html>
+<script>
+  window.parent.postMessage({status: "done"}, "*");
+</script>
diff --git a/dom/serviceworkers/test/fetch/https/clonedresponse/register.html b/dom/serviceworkers/test/fetch/https/clonedresponse/register.html
new file mode 100644
index 0000000000..41774f70d1
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/https/clonedresponse/register.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<script>
+  function ok(v, msg) {
+    window.parent.postMessage({status: "ok", result: !!v, message: msg}, "*");
+  }
+
+  function done(reg) {
+    ok(reg.active, "The active worker should be available.");
+    window.parent.postMessage({status: "registrationdone"}, "*");
+  }
+
+  navigator.serviceWorker.ready.then(done);
+  navigator.serviceWorker.register("https_test.js", {scope: "."});
+</script>
diff --git a/dom/serviceworkers/test/fetch/https/clonedresponse/unregister.html b/dom/serviceworkers/test/fetch/https/clonedresponse/unregister.html
new file mode 100644
index 0000000000..1f13508fa7
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/https/clonedresponse/unregister.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<script>
+  navigator.serviceWorker.getRegistration(".").then(function(registration) {
+    registration.unregister().then(function(success) {
+      if (success) {
+        window.parent.postMessage({status: "unregistrationdone"}, "*");
+      }
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  });
+</script>
diff --git a/dom/serviceworkers/test/fetch/https/https_test.js b/dom/serviceworkers/test/fetch/https/https_test.js
new file mode 100644
index 0000000000..5f20690bb5
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/https/https_test.js
@@ -0,0 +1,31 @@
+self.addEventListener("install", function (event) {
+  event.waitUntil(
+    caches.open("cache").then(function (cache) {
+      var synth = new Response(
+        '<!DOCTYPE html><script>window.parent.postMessage({status: "done-synth-sw"}, "*");</script>',
+        { headers: { "Content-Type": "text/html" } }
+      );
+      return Promise.all([
+        cache.add("index.html"),
+        cache.put("synth-sw.html", synth),
+      ]);
+    })
+  );
+});
+
+self.addEventListener("fetch", function (event) {
+  if (event.request.url.includes("index.html")) {
+    event.respondWith(caches.match(event.request));
+  } else if (event.request.url.includes("synth-sw.html")) {
+    event.respondWith(caches.match(event.request));
+  } else if (event.request.url.includes("synth-window.html")) {
+    event.respondWith(caches.match(event.request));
+  } else if (event.request.url.includes("synth.html")) {
+    event.respondWith(
+      new Response(
+        '<!DOCTYPE html><script>window.parent.postMessage({status: "done-synth"}, "*");</script>',
+        { headers: { "Content-Type": "text/html" } }
+      )
+    );
+  }
+});
diff --git a/dom/serviceworkers/test/fetch/https/index.html b/dom/serviceworkers/test/fetch/https/index.html
new file mode 100644
index 0000000000..a435548443
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/https/index.html
@@ -0,0 +1,4 @@
+<!DOCTYPE html>
+<script>
+  window.parent.postMessage({status: "done"}, "*");
+</script>
diff --git a/dom/serviceworkers/test/fetch/https/register.html b/dom/serviceworkers/test/fetch/https/register.html
new file mode 100644
index 0000000000..fa666fe957
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/https/register.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<script>
+  function ok(v, msg) {
+    window.parent.postMessage({status: "ok", result: !!v, message: msg}, "*");
+  }
+
+  function done(reg) {
+    ok(reg.active, "The active worker should be available.");
+    window.parent.postMessage({status: "registrationdone"}, "*");
+  }
+
+  navigator.serviceWorker.ready.then(reg => {
+    return window.caches.open("cache").then(function(cache) {
+      var synth = new Response('<!DOCTYPE html><script>window.parent.postMessage({status: "done-synth-window"}, "*");</scri' + 'pt>',
+                               {headers:{"Content-Type": "text/html"}});
+      return cache.put('synth-window.html', synth).then(_ => done(reg));
+    });
+  });
+  navigator.serviceWorker.register("https_test.js", {scope: "."});
+</script>
diff --git a/dom/serviceworkers/test/fetch/https/unregister.html b/dom/serviceworkers/test/fetch/https/unregister.html
new file mode 100644
index 0000000000..1f13508fa7
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/https/unregister.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<script>
+  navigator.serviceWorker.getRegistration(".").then(function(registration) {
+    registration.unregister().then(function(success) {
+      if (success) {
+        window.parent.postMessage({status: "unregistrationdone"}, "*");
+      }
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  });
+</script>
diff --git a/dom/serviceworkers/test/fetch/imagecache-maxage/image-20px.png b/dom/serviceworkers/test/fetch/imagecache-maxage/image-20px.png
new file mode 100644
index 0000000000..ae6a8a6b88
Binary files /dev/null and b/dom/serviceworkers/test/fetch/imagecache-maxage/image-20px.png differ
diff --git a/dom/serviceworkers/test/fetch/imagecache-maxage/image-40px.png b/dom/serviceworkers/test/fetch/imagecache-maxage/image-40px.png
new file mode 100644
index 0000000000..fe391dc8a2
Binary files /dev/null and b/dom/serviceworkers/test/fetch/imagecache-maxage/image-40px.png differ
diff --git a/dom/serviceworkers/test/fetch/imagecache-maxage/index.html b/dom/serviceworkers/test/fetch/imagecache-maxage/index.html
new file mode 100644
index 0000000000..0d4c52eedd
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/imagecache-maxage/index.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<script>
+var width, url, width2, url2;
+function maybeReport() {
+  if (width !== undefined && url !== undefined &&
+      width2 !== undefined && url2 !== undefined) {
+    window.parent.postMessage({status: "result",
+                               width,
+                               width2,
+                               url,
+                               url2}, "*");
+  }
+}
+onload = function() {
+  width = document.querySelector("img").width;
+  width2 = document.querySelector("img").width;
+  maybeReport();
+};
+navigator.serviceWorker.onmessage = function(event) {
+  if (event.data.suffix == "2") {
+    url2 = event.data.url;
+  } else {
+    url = event.data.url;
+  }
+  maybeReport();
+};
+</script>
+<img src="image.png">
+<img src="image2.png">
diff --git a/dom/serviceworkers/test/fetch/imagecache-maxage/maxage_test.js b/dom/serviceworkers/test/fetch/imagecache-maxage/maxage_test.js
new file mode 100644
index 0000000000..c664e07c28
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/imagecache-maxage/maxage_test.js
@@ -0,0 +1,45 @@
+function synthesizeImage(suffix) {
+  // Serve image-20px for the first page, and image-40px for the second page.
+  return clients
+    .matchAll()
+    .then(clients => {
+      var url = "image-20px.png";
+      clients.forEach(client => {
+        if (client.url.indexOf("?new") > 0) {
+          url = "image-40px.png";
+        }
+        client.postMessage({ suffix, url });
+      });
+      return fetch(url);
+    })
+    .then(response => {
+      return response.arrayBuffer();
+    })
+    .then(ab => {
+      var headers;
+      if (suffix == "") {
+        headers = {
+          "Content-Type": "image/png",
+          Date: "Tue, 1 Jan 1990 01:02:03 GMT",
+          "Cache-Control": "max-age=1",
+        };
+      } else {
+        headers = {
+          "Content-Type": "image/png",
+          "Cache-Control": "no-cache",
+        };
+      }
+      return new Response(ab, {
+        status: 200,
+        headers,
+      });
+    });
+}
+
+self.addEventListener("fetch", function (event) {
+  if (event.request.url.includes("image.png")) {
+    event.respondWith(synthesizeImage(""));
+  } else if (event.request.url.includes("image2.png")) {
+    event.respondWith(synthesizeImage("2"));
+  }
+});
diff --git a/dom/serviceworkers/test/fetch/imagecache-maxage/register.html b/dom/serviceworkers/test/fetch/imagecache-maxage/register.html
new file mode 100644
index 0000000000..af4dde2e29
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/imagecache-maxage/register.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<script>
+  function ok(v, msg) {
+    window.parent.postMessage({status: "ok", result: !!v, message: msg}, "*");
+  }
+
+  function done(reg) {
+    ok(reg.active, "The active worker should be available.");
+    window.parent.postMessage({status: "registrationdone"}, "*");
+  }
+
+  navigator.serviceWorker.ready.then(done);
+  navigator.serviceWorker.register("maxage_test.js", {scope: "."});
+</script>
diff --git a/dom/serviceworkers/test/fetch/imagecache-maxage/unregister.html b/dom/serviceworkers/test/fetch/imagecache-maxage/unregister.html
new file mode 100644
index 0000000000..1f13508fa7
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/imagecache-maxage/unregister.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<script>
+  navigator.serviceWorker.getRegistration(".").then(function(registration) {
+    registration.unregister().then(function(success) {
+      if (success) {
+        window.parent.postMessage({status: "unregistrationdone"}, "*");
+      }
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  });
+</script>
diff --git a/dom/serviceworkers/test/fetch/imagecache/image-20px.png b/dom/serviceworkers/test/fetch/imagecache/image-20px.png
new file mode 100644
index 0000000000..ae6a8a6b88
Binary files /dev/null and b/dom/serviceworkers/test/fetch/imagecache/image-20px.png differ
diff --git a/dom/serviceworkers/test/fetch/imagecache/image-40px.png b/dom/serviceworkers/test/fetch/imagecache/image-40px.png
new file mode 100644
index 0000000000..fe391dc8a2
Binary files /dev/null and b/dom/serviceworkers/test/fetch/imagecache/image-40px.png differ
diff --git a/dom/serviceworkers/test/fetch/imagecache/imagecache_test.js b/dom/serviceworkers/test/fetch/imagecache/imagecache_test.js
new file mode 100644
index 0000000000..cd8f522728
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/imagecache/imagecache_test.js
@@ -0,0 +1,15 @@
+function synthesizeImage() {
+  return clients.matchAll().then(clients => {
+    var url = "image-40px.png";
+    clients.forEach(client => {
+      client.postMessage(url);
+    });
+    return fetch(url);
+  });
+}
+
+self.addEventListener("fetch", function (event) {
+  if (event.request.url.includes("image-20px.png")) {
+    event.respondWith(synthesizeImage());
+  }
+});
diff --git a/dom/serviceworkers/test/fetch/imagecache/index.html b/dom/serviceworkers/test/fetch/imagecache/index.html
new file mode 100644
index 0000000000..f634f68bb7
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/imagecache/index.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<script>
+var width, url;
+function maybeReport() {
+  if (width !== undefined && url !== undefined) {
+    window.parent.postMessage({status: "result",
+                               width,
+                               url}, "*");
+  }
+}
+onload = function() {
+  width = document.querySelector("img").width;
+  maybeReport();
+};
+navigator.serviceWorker.onmessage = function(event) {
+  url = event.data;
+  maybeReport();
+};
+</script>
+<img src="image-20px.png">
diff --git a/dom/serviceworkers/test/fetch/imagecache/postmortem.html b/dom/serviceworkers/test/fetch/imagecache/postmortem.html
new file mode 100644
index 0000000000..53356cd02c
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/imagecache/postmortem.html
@@ -0,0 +1,9 @@
+<!DOCTYPE html>
+<script>
+onload = function() {
+  var width = document.querySelector("img").width;
+  window.parent.postMessage({status: "postmortem",
+                             width}, "*");
+};
+</script>
+<img src="image-20px.png">
diff --git a/dom/serviceworkers/test/fetch/imagecache/register.html b/dom/serviceworkers/test/fetch/imagecache/register.html
new file mode 100644
index 0000000000..f6d1eb382f
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/imagecache/register.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<!-- Load the image here to put it in the image cache -->
+<img src="image-20px.png">
+<script>
+  function ok(v, msg) {
+    window.parent.postMessage({status: "ok", result: !!v, message: msg}, "*");
+  }
+
+  function done(reg) {
+    ok(reg.active, "The active worker should be available.");
+    window.parent.postMessage({status: "registrationdone"}, "*");
+  }
+
+  navigator.serviceWorker.ready.then(done);
+  navigator.serviceWorker.register("imagecache_test.js", {scope: "."});
+</script>
diff --git a/dom/serviceworkers/test/fetch/imagecache/unregister.html b/dom/serviceworkers/test/fetch/imagecache/unregister.html
new file mode 100644
index 0000000000..1f13508fa7
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/imagecache/unregister.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<script>
+  navigator.serviceWorker.getRegistration(".").then(function(registration) {
+    registration.unregister().then(function(success) {
+      if (success) {
+        window.parent.postMessage({status: "unregistrationdone"}, "*");
+      }
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  });
+</script>
diff --git a/dom/serviceworkers/test/fetch/importscript-mixedcontent/https_test.js b/dom/serviceworkers/test/fetch/importscript-mixedcontent/https_test.js
new file mode 100644
index 0000000000..138ca768aa
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/importscript-mixedcontent/https_test.js
@@ -0,0 +1,31 @@
+function sendResponseToParent(response) {
+  return `
+    <!DOCTYPE html>
+    <script>
+      window.parent.postMessage({status: "done", data: "${response}"}, "*");
+    </script>
+  `;
+}
+
+self.addEventListener("fetch", function (event) {
+  if (event.request.url.includes("index.html")) {
+    var response = "good";
+    try {
+      importScripts("http://example.org/tests/dom/workers/test/foreign.js");
+    } catch (e) {
+      dump("Got error " + e + " when importing the script\n");
+    }
+    if (response === "good") {
+      try {
+        importScripts("/tests/dom/workers/test/redirect_to_foreign.sjs");
+      } catch (e) {
+        dump("Got error " + e + " when importing the script\n");
+      }
+    }
+    event.respondWith(
+      new Response(sendResponseToParent(response), {
+        headers: { "Content-Type": "text/html" },
+      })
+    );
+  }
+});
diff --git a/dom/serviceworkers/test/fetch/importscript-mixedcontent/register.html b/dom/serviceworkers/test/fetch/importscript-mixedcontent/register.html
new file mode 100644
index 0000000000..41774f70d1
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/importscript-mixedcontent/register.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<script>
+  function ok(v, msg) {
+    window.parent.postMessage({status: "ok", result: !!v, message: msg}, "*");
+  }
+
+  function done(reg) {
+    ok(reg.active, "The active worker should be available.");
+    window.parent.postMessage({status: "registrationdone"}, "*");
+  }
+
+  navigator.serviceWorker.ready.then(done);
+  navigator.serviceWorker.register("https_test.js", {scope: "."});
+</script>
diff --git a/dom/serviceworkers/test/fetch/importscript-mixedcontent/unregister.html b/dom/serviceworkers/test/fetch/importscript-mixedcontent/unregister.html
new file mode 100644
index 0000000000..1f13508fa7
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/importscript-mixedcontent/unregister.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<script>
+  navigator.serviceWorker.getRegistration(".").then(function(registration) {
+    registration.unregister().then(function(success) {
+      if (success) {
+        window.parent.postMessage({status: "unregistrationdone"}, "*");
+      }
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  });
+</script>
diff --git a/dom/serviceworkers/test/fetch/index.html b/dom/serviceworkers/test/fetch/index.html
new file mode 100644
index 0000000000..693810c6fc
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/index.html
@@ -0,0 +1,191 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 94048 - test install event.</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<div id="style-test" style="background-color: white"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+  function my_ok(result, msg) {
+    window.opener.postMessage({status: "ok", result, message: msg}, "*");
+  }
+
+  function check_intercepted_script() {
+    document.getElementById('intercepted-script').test_result =
+      document.currentScript == document.getElementById('intercepted-script');
+  }
+
+  function fetchXHR(name, onload, onerror, headers) {
+    gExpected++;
+
+    onload = onload || function() {
+      my_ok(false, "load should not complete successfully");
+      finish();
+    };
+    onerror = onerror || function() {
+      my_ok(false, "load should be intercepted successfully");
+      finish();
+    };
+
+    var x = new XMLHttpRequest();
+    x.open('GET', name, true);
+    x.onload = function() { onload(x) };
+    x.onerror = function() { onerror(x) };
+    headers = headers || [];
+    headers.forEach(function(header) {
+      x.setRequestHeader(header[0], header[1]);
+    });
+    x.send();
+  }
+
+  var gExpected = 0;
+  var gEncountered = 0;
+  function finish() {
+    gEncountered++;
+    if (gEncountered == gExpected) {
+      window.opener.postMessage({status: "done"}, "*");
+    }
+  }
+
+  function test_onload(creator, complete) {
+    gExpected++;
+    var elem = creator();
+    elem.onload = function() {
+      complete.call(elem);
+      finish();
+    };
+    elem.onerror = function() {
+      my_ok(false, elem.tagName + " load should complete successfully");
+      finish();
+    };
+    document.body.appendChild(elem);
+  }
+
+  function expectAsyncResult() {
+    gExpected++;
+  }
+
+  my_ok(navigator.serviceWorker.controller != null, "should be controlled");
+</script>
+<script src="fetch_tests.js"></script>
+<script>
+  test_onload(function() {
+    var elem = document.createElement('img');
+    elem.src = "nonexistent_image.gifs";
+    elem.id = 'intercepted-img';
+    return elem;
+  }, function() {
+    my_ok(this.complete, "image should be complete");
+    my_ok(this.naturalWidth == 1 && this.naturalHeight == 1, "image should be 1x1 gif");
+  });
+
+  test_onload(function() {
+    var elem = document.createElement('script');
+    elem.id = 'intercepted-script';
+    elem.src = "nonexistent_script.js";
+    return elem;
+  }, function() {
+    my_ok(this.test_result, "script load should be intercepted");
+  });
+
+  test_onload(function() {
+    var elem = document.createElement('link');
+    elem.href = "nonexistent_stylesheet.css";
+    elem.rel = "stylesheet";
+    return elem;
+  }, function() {
+    var styled = document.getElementById('style-test');
+    my_ok(window.getComputedStyle(styled).backgroundColor == 'rgb(0, 0, 0)',
+          "stylesheet load should be intercepted");
+  });
+
+  test_onload(function() {
+    var elem = document.createElement('iframe');
+    elem.id = 'intercepted-iframe';
+    elem.src = "nonexistent_page.html";
+    return elem;
+  }, function() {
+    my_ok(this.test_result, "iframe load should be intercepted");
+  });
+
+  test_onload(function() {
+    var elem = document.createElement('iframe');
+    elem.id = 'intercepted-iframe-2';
+    elem.src = "navigate.html";
+    return elem;
+  }, function() {
+    my_ok(this.test_result, "iframe should successfully load");
+  });
+
+  gExpected++;
+  var xhr = new XMLHttpRequest();
+  xhr.addEventListener("load", function(evt) {
+    my_ok(evt.target.responseXML === null, "Load synthetic cross origin XML Document should be allowed");
+    finish();
+  });
+  xhr.responseType = "document";
+  xhr.open("GET", "load_cross_origin_xml_document_synthetic.xml");
+  xhr.send();
+
+  gExpected++;
+  fetch(
+    "load_cross_origin_xml_document_cors.xml",
+    {mode: "same-origin"}
+  ).then(function(response) {
+    // issue: https://github.com/whatwg/fetch/issues/629
+    my_ok(false, "Load CORS cross origin XML Document should not be allowed");
+    finish();
+  }, function(error) {
+    my_ok(true, "Load CORS cross origin XML Document should not be allowed");
+    finish();
+  });
+
+  gExpected++;
+  fetch(
+    "load_cross_origin_xml_document_opaque.xml",
+    {mode: "same-origin"}
+  ).then(function(response) {
+    my_ok(false, "Load opaque cross origin XML Document should not be allowed");
+    finish();
+  }, function(error) {
+    my_ok(true, "Load opaque cross origin XML Document should not be allowed");
+    finish();
+  });
+
+  gExpected++;
+  var worker = new Worker('nonexistent_worker_script.js');
+  worker.onmessage = function(e) {
+    my_ok(e.data == "worker-intercept-success", "worker load intercepted");
+    finish();
+  };
+  worker.onerror = function() {
+    my_ok(false, "worker load should be intercepted");
+  };
+
+  gExpected++;
+  var worker = new Worker('fetch_worker_script.js');
+  worker.onmessage = function(e) {
+    if (e.data == "finish") {
+      finish();
+    } else if (e.data == "expect") {
+      gExpected++;
+    } else if (e.data.type == "ok") {
+      my_ok(e.data.value, "Fetch test on worker: " + e.data.msg);
+    }
+  };
+  worker.onerror = function() {
+    my_ok(false, "worker should not cause any errors");
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/fetch/interrupt.sjs b/dom/serviceworkers/test/fetch/interrupt.sjs
new file mode 100644
index 0000000000..6e5deeb832
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/interrupt.sjs
@@ -0,0 +1,20 @@
+function handleRequest(request, response) {
+  var body = "a";
+  for (var i = 0; i < 20; i++) {
+    body += body;
+  }
+
+  response.seizePower();
+  response.write("HTTP/1.1 200 OK\r\n");
+  var count = 10;
+  response.write("Content-Length: " + body.length * count + "\r\n");
+  response.write("Content-Type: text/plain; charset=utf-8\r\n");
+  response.write("Cache-Control: no-cache, must-revalidate\r\n");
+  response.write("\r\n");
+
+  for (var i = 0; i < count; i++) {
+    response.write(body);
+  }
+
+  throw Components.Exception("", Components.results.NS_BINDING_ABORTED);
+}
diff --git a/dom/serviceworkers/test/fetch/origin/https/index-https.sjs b/dom/serviceworkers/test/fetch/origin/https/index-https.sjs
new file mode 100644
index 0000000000..5250467ec7
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/origin/https/index-https.sjs
@@ -0,0 +1,8 @@
+function handleRequest(request, response) {
+  response.setStatusLine(null, 308, "Permanent Redirect");
+  response.setHeader(
+    "Location",
+    "https://example.org/tests/dom/serviceworkers/test/fetch/origin/https/realindex.html",
+    false
+  );
+}
diff --git a/dom/serviceworkers/test/fetch/origin/https/origin_test.js b/dom/serviceworkers/test/fetch/origin/https/origin_test.js
new file mode 100644
index 0000000000..d148de2d83
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/origin/https/origin_test.js
@@ -0,0 +1,29 @@
+var prefix = "/tests/dom/serviceworkers/test/fetch/origin/https/";
+
+function addOpaqueRedirect(cache, file) {
+  return fetch(new Request(prefix + file, { redirect: "manual" })).then(
+    function (response) {
+      return cache.put(prefix + file, response);
+    }
+  );
+}
+
+self.addEventListener("install", function (event) {
+  event.waitUntil(
+    self.caches.open("origin-cache").then(c => {
+      return addOpaqueRedirect(c, "index-https.sjs");
+    })
+  );
+});
+
+self.addEventListener("fetch", function (event) {
+  if (event.request.url.includes("index-cached-https.sjs")) {
+    event.respondWith(
+      self.caches.open("origin-cache").then(c => {
+        return c.match(prefix + "index-https.sjs");
+      })
+    );
+  } else {
+    event.respondWith(fetch(event.request));
+  }
+});
diff --git a/dom/serviceworkers/test/fetch/origin/https/realindex.html b/dom/serviceworkers/test/fetch/origin/https/realindex.html
new file mode 100644
index 0000000000..87f3489455
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/origin/https/realindex.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<script>
+  window.opener.postMessage({status: "domain", data: document.domain}, "*");
+  window.opener.postMessage({status: "origin", data: location.origin}, "*");
+  window.opener.postMessage({status: "done"}, "*");
+</script>
diff --git a/dom/serviceworkers/test/fetch/origin/https/realindex.html^headers^ b/dom/serviceworkers/test/fetch/origin/https/realindex.html^headers^
new file mode 100644
index 0000000000..5ed82fd065
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/origin/https/realindex.html^headers^
@@ -0,0 +1 @@
+Access-Control-Allow-Origin: https://example.com
diff --git a/dom/serviceworkers/test/fetch/origin/https/register.html b/dom/serviceworkers/test/fetch/origin/https/register.html
new file mode 100644
index 0000000000..2e99adba53
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/origin/https/register.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<script>
+  function ok(v, msg) {
+    window.parent.postMessage({status: "ok", result: !!v, message: msg}, "*");
+  }
+
+  function done(reg) {
+    ok(reg.active, "The active worker should be available.");
+    window.parent.postMessage({status: "registrationdone"}, "*");
+  }
+
+  navigator.serviceWorker.ready.then(done);
+  navigator.serviceWorker.register("origin_test.js", {scope: "."});
+</script>
diff --git a/dom/serviceworkers/test/fetch/origin/https/unregister.html b/dom/serviceworkers/test/fetch/origin/https/unregister.html
new file mode 100644
index 0000000000..1f13508fa7
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/origin/https/unregister.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<script>
+  navigator.serviceWorker.getRegistration(".").then(function(registration) {
+    registration.unregister().then(function(success) {
+      if (success) {
+        window.parent.postMessage({status: "unregistrationdone"}, "*");
+      }
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  });
+</script>
diff --git a/dom/serviceworkers/test/fetch/origin/index-to-https.sjs b/dom/serviceworkers/test/fetch/origin/index-to-https.sjs
new file mode 100644
index 0000000000..2505c03686
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/origin/index-to-https.sjs
@@ -0,0 +1,8 @@
+function handleRequest(request, response) {
+  response.setStatusLine(null, 308, "Permanent Redirect");
+  response.setHeader(
+    "Location",
+    "https://example.org/tests/dom/serviceworkers/test/fetch/origin/realindex.html",
+    false
+  );
+}
diff --git a/dom/serviceworkers/test/fetch/origin/index.sjs b/dom/serviceworkers/test/fetch/origin/index.sjs
new file mode 100644
index 0000000000..ca11827792
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/origin/index.sjs
@@ -0,0 +1,8 @@
+function handleRequest(request, response) {
+  response.setStatusLine(null, 308, "Permanent Redirect");
+  response.setHeader(
+    "Location",
+    "http://example.org/tests/dom/serviceworkers/test/fetch/origin/realindex.html",
+    false
+  );
+}
diff --git a/dom/serviceworkers/test/fetch/origin/origin_test.js b/dom/serviceworkers/test/fetch/origin/origin_test.js
new file mode 100644
index 0000000000..d57f10cc2a
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/origin/origin_test.js
@@ -0,0 +1,38 @@
+var prefix = "/tests/dom/serviceworkers/test/fetch/origin/";
+
+function addOpaqueRedirect(cache, file) {
+  return fetch(new Request(prefix + file, { redirect: "manual" })).then(
+    function (response) {
+      return cache.put(prefix + file, response);
+    }
+  );
+}
+
+self.addEventListener("install", function (event) {
+  event.waitUntil(
+    self.caches.open("origin-cache").then(c => {
+      return Promise.all([
+        addOpaqueRedirect(c, "index.sjs"),
+        addOpaqueRedirect(c, "index-to-https.sjs"),
+      ]);
+    })
+  );
+});
+
+self.addEventListener("fetch", function (event) {
+  if (event.request.url.includes("index-cached.sjs")) {
+    event.respondWith(
+      self.caches.open("origin-cache").then(c => {
+        return c.match(prefix + "index.sjs");
+      })
+    );
+  } else if (event.request.url.includes("index-to-https-cached.sjs")) {
+    event.respondWith(
+      self.caches.open("origin-cache").then(c => {
+        return c.match(prefix + "index-to-https.sjs");
+      })
+    );
+  } else {
+    event.respondWith(fetch(event.request));
+  }
+});
diff --git a/dom/serviceworkers/test/fetch/origin/realindex.html b/dom/serviceworkers/test/fetch/origin/realindex.html
new file mode 100644
index 0000000000..87f3489455
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/origin/realindex.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<script>
+  window.opener.postMessage({status: "domain", data: document.domain}, "*");
+  window.opener.postMessage({status: "origin", data: location.origin}, "*");
+  window.opener.postMessage({status: "done"}, "*");
+</script>
diff --git a/dom/serviceworkers/test/fetch/origin/realindex.html^headers^ b/dom/serviceworkers/test/fetch/origin/realindex.html^headers^
new file mode 100644
index 0000000000..3a6a85d894
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/origin/realindex.html^headers^
@@ -0,0 +1 @@
+Access-Control-Allow-Origin: http://mochi.test:8888
diff --git a/dom/serviceworkers/test/fetch/origin/register.html b/dom/serviceworkers/test/fetch/origin/register.html
new file mode 100644
index 0000000000..2e99adba53
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/origin/register.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<script>
+  function ok(v, msg) {
+    window.parent.postMessage({status: "ok", result: !!v, message: msg}, "*");
+  }
+
+  function done(reg) {
+    ok(reg.active, "The active worker should be available.");
+    window.parent.postMessage({status: "registrationdone"}, "*");
+  }
+
+  navigator.serviceWorker.ready.then(done);
+  navigator.serviceWorker.register("origin_test.js", {scope: "."});
+</script>
diff --git a/dom/serviceworkers/test/fetch/origin/unregister.html b/dom/serviceworkers/test/fetch/origin/unregister.html
new file mode 100644
index 0000000000..1f13508fa7
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/origin/unregister.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<script>
+  navigator.serviceWorker.getRegistration(".").then(function(registration) {
+    registration.unregister().then(function(success) {
+      if (success) {
+        window.parent.postMessage({status: "unregistrationdone"}, "*");
+      }
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  });
+</script>
diff --git a/dom/serviceworkers/test/fetch/plugin/plugins.html b/dom/serviceworkers/test/fetch/plugin/plugins.html
new file mode 100644
index 0000000000..b268f6d99e
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/plugin/plugins.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<script>
+  var obj, embed;
+
+  function ok(v, msg) {
+    window.opener.postMessage({status: "ok", result: !!v, message: msg}, "*");
+  }
+
+  function finish() {
+    document.documentElement.removeChild(obj);
+    document.documentElement.removeChild(embed);
+    window.opener.postMessage({status: "done"}, "*");
+  }
+
+  function test_object() {
+    obj = document.createElement("object");
+    obj.setAttribute('data', "object");
+    document.documentElement.appendChild(obj);
+  }
+
+  function test_embed() {
+    embed = document.createElement("embed");
+    embed.setAttribute('src', "embed");
+    document.documentElement.appendChild(embed);
+  }
+
+  navigator.serviceWorker.addEventListener("message", function onMessage(e) {
+    if (e.data.destination === "object") {
+      ok(false, "<object> should not be intercepted");
+    } else if (e.data.destination === "embed") {
+      ok(false, "<embed> should not be intercepted");
+    } else if (e.data.destination === "" && e.data.resource === "foo.txt") {
+      navigator.serviceWorker.removeEventListener("message", onMessage);
+      finish();
+    }
+  });
+
+  test_object();
+  test_embed();
+  // SW will definitely intercept fetch API, use this to see if plugins are
+  // intercepted before fetch().
+  fetch("foo.txt");
+</script>
diff --git a/dom/serviceworkers/test/fetch/plugin/worker.js b/dom/serviceworkers/test/fetch/plugin/worker.js
new file mode 100644
index 0000000000..9849c9e0d5
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/plugin/worker.js
@@ -0,0 +1,15 @@
+self.addEventListener("fetch", function (event) {
+  var resource = event.request.url.split("/").pop();
+  event.waitUntil(
+    clients.matchAll().then(clients => {
+      clients.forEach(client => {
+        if (client.url.includes("plugins.html")) {
+          client.postMessage({
+            destination: event.request.destination,
+            resource,
+          });
+        }
+      });
+    })
+  );
+});
diff --git a/dom/serviceworkers/test/fetch/real-file.txt b/dom/serviceworkers/test/fetch/real-file.txt
new file mode 100644
index 0000000000..3ca2088ec0
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/real-file.txt
@@ -0,0 +1 @@
+This is a real file.
diff --git a/dom/serviceworkers/test/fetch/redirect.sjs b/dom/serviceworkers/test/fetch/redirect.sjs
new file mode 100644
index 0000000000..dab558f4a8
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/redirect.sjs
@@ -0,0 +1,4 @@
+function handleRequest(request, response) {
+  response.setStatusLine(request.httpVersion, 301, "Moved Permanently");
+  response.setHeader("Location", "synthesized-redirect-twice-real-file.txt");
+}
diff --git a/dom/serviceworkers/test/fetch/requesturl/index.html b/dom/serviceworkers/test/fetch/requesturl/index.html
new file mode 100644
index 0000000000..bc3e400a94
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/requesturl/index.html
@@ -0,0 +1,7 @@
+<!DOCTYPE html>
+<script>
+  navigator.serviceWorker.onmessage = window.onmessage = e => {
+    window.parent.postMessage(e.data, "*");
+  };
+</script>
+<iframe src="redirector.html"></iframe>
diff --git a/dom/serviceworkers/test/fetch/requesturl/redirect.sjs b/dom/serviceworkers/test/fetch/requesturl/redirect.sjs
new file mode 100644
index 0000000000..ae50a78aef
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/requesturl/redirect.sjs
@@ -0,0 +1,8 @@
+function handleRequest(request, response) {
+  response.setStatusLine(null, 308, "Permanent Redirect");
+  response.setHeader(
+    "Location",
+    "http://example.org/tests/dom/serviceworkers/test/fetch/requesturl/secret.html",
+    false
+  );
+}
diff --git a/dom/serviceworkers/test/fetch/requesturl/redirector.html b/dom/serviceworkers/test/fetch/requesturl/redirector.html
new file mode 100644
index 0000000000..0a3afab9ee
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/requesturl/redirector.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<meta http-equiv="refresh" content="3;URL=/tests/dom/serviceworkers/test/fetch/requesturl/redirect.sjs">
diff --git a/dom/serviceworkers/test/fetch/requesturl/register.html b/dom/serviceworkers/test/fetch/requesturl/register.html
new file mode 100644
index 0000000000..19a2e022c2
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/requesturl/register.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<script>
+  function ok(v, msg) {
+    window.parent.postMessage({status: "ok", result: !!v, message: msg}, "*");
+  }
+
+  function done(reg) {
+    ok(reg.active, "The active worker should be available.");
+    window.parent.postMessage({status: "registrationdone"}, "*");
+  }
+
+  navigator.serviceWorker.ready.then(done);
+  navigator.serviceWorker.register("requesturl_test.js", {scope: "."});
+</script>
diff --git a/dom/serviceworkers/test/fetch/requesturl/requesturl_test.js b/dom/serviceworkers/test/fetch/requesturl/requesturl_test.js
new file mode 100644
index 0000000000..4d2680538f
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/requesturl/requesturl_test.js
@@ -0,0 +1,21 @@
+addEventListener("fetch", event => {
+  var url = event.request.url;
+  var badURL = url.indexOf("secret.html") > -1;
+  event.respondWith(
+    new Promise(resolve => {
+      clients.matchAll().then(clients => {
+        for (var client of clients) {
+          if (client.url.indexOf("index.html") > -1) {
+            client.postMessage({
+              status: "ok",
+              result: !badURL,
+              message: "Should not find a bad URL (" + url + ")",
+            });
+            break;
+          }
+        }
+        resolve(fetch(event.request));
+      });
+    })
+  );
+});
diff --git a/dom/serviceworkers/test/fetch/requesturl/secret.html b/dom/serviceworkers/test/fetch/requesturl/secret.html
new file mode 100644
index 0000000000..694c336355
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/requesturl/secret.html
@@ -0,0 +1,5 @@
+<!DOCTYPE html>
+secret stuff
+<script>
+  window.parent.postMessage({status: "done"}, "*");
+</script>
diff --git a/dom/serviceworkers/test/fetch/requesturl/unregister.html b/dom/serviceworkers/test/fetch/requesturl/unregister.html
new file mode 100644
index 0000000000..1f13508fa7
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/requesturl/unregister.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<script>
+  navigator.serviceWorker.getRegistration(".").then(function(registration) {
+    registration.unregister().then(function(success) {
+      if (success) {
+        window.parent.postMessage({status: "unregistrationdone"}, "*");
+      }
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  });
+</script>
diff --git a/dom/serviceworkers/test/fetch/sandbox/index.html b/dom/serviceworkers/test/fetch/sandbox/index.html
new file mode 100644
index 0000000000..1094a3995d
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/sandbox/index.html
@@ -0,0 +1,5 @@
+<!DOCTYPE html>
+<script>
+  window.parent.postMessage({status: "ok", result: true, message: "The iframe is not being intercepted"}, "*");
+  window.parent.postMessage({status: "done"}, "*");
+</script>
diff --git a/dom/serviceworkers/test/fetch/sandbox/intercepted_index.html b/dom/serviceworkers/test/fetch/sandbox/intercepted_index.html
new file mode 100644
index 0000000000..87261a495f
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/sandbox/intercepted_index.html
@@ -0,0 +1,5 @@
+<!DOCTYPE html>
+<script>
+  window.parent.postMessage({status: "ok", result: false, message: "The iframe is being intercepted"}, "*");
+  window.parent.postMessage({status: "done"}, "*");
+</script>
diff --git a/dom/serviceworkers/test/fetch/sandbox/register.html b/dom/serviceworkers/test/fetch/sandbox/register.html
new file mode 100644
index 0000000000..427b1a8da9
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/sandbox/register.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<script>
+  function ok(v, msg) {
+    window.parent.postMessage({status: "ok", result: !!v, message: msg}, "*");
+  }
+
+  function done(reg) {
+    ok(reg.active, "The active worker should be available.");
+    window.parent.postMessage({status: "registrationdone"}, "*");
+  }
+
+  navigator.serviceWorker.ready.then(done);
+  navigator.serviceWorker.register("sandbox_test.js", {scope: "."});
+</script>
diff --git a/dom/serviceworkers/test/fetch/sandbox/sandbox_test.js b/dom/serviceworkers/test/fetch/sandbox/sandbox_test.js
new file mode 100644
index 0000000000..310cea0d16
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/sandbox/sandbox_test.js
@@ -0,0 +1,5 @@
+self.addEventListener("fetch", function (event) {
+  if (event.request.url.includes("index.html")) {
+    event.respondWith(fetch("intercepted_index.html"));
+  }
+});
diff --git a/dom/serviceworkers/test/fetch/sandbox/unregister.html b/dom/serviceworkers/test/fetch/sandbox/unregister.html
new file mode 100644
index 0000000000..1f13508fa7
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/sandbox/unregister.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<script>
+  navigator.serviceWorker.getRegistration(".").then(function(registration) {
+    registration.unregister().then(function(success) {
+      if (success) {
+        window.parent.postMessage({status: "unregistrationdone"}, "*");
+      }
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  });
+</script>
diff --git a/dom/serviceworkers/test/fetch/upgrade-insecure/embedder.html b/dom/serviceworkers/test/fetch/upgrade-insecure/embedder.html
new file mode 100644
index 0000000000..e99209aa4d
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/upgrade-insecure/embedder.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<script>
+  window.onmessage = function(e) {
+    window.parent.postMessage(e.data, "*");
+    if (e.data.status == "protocol") {
+      document.querySelector("iframe").src = "image.html";
+    }
+  };
+</script>
+<iframe src="http://example.com/tests/dom/serviceworkers/test/fetch/upgrade-insecure/index.html"></iframe>
diff --git a/dom/serviceworkers/test/fetch/upgrade-insecure/embedder.html^headers^ b/dom/serviceworkers/test/fetch/upgrade-insecure/embedder.html^headers^
new file mode 100644
index 0000000000..602d9dc38d
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/upgrade-insecure/embedder.html^headers^
@@ -0,0 +1 @@
+Content-Security-Policy: upgrade-insecure-requests
diff --git a/dom/serviceworkers/test/fetch/upgrade-insecure/image-20px.png b/dom/serviceworkers/test/fetch/upgrade-insecure/image-20px.png
new file mode 100644
index 0000000000..ae6a8a6b88
Binary files /dev/null and b/dom/serviceworkers/test/fetch/upgrade-insecure/image-20px.png differ
diff --git a/dom/serviceworkers/test/fetch/upgrade-insecure/image-40px.png b/dom/serviceworkers/test/fetch/upgrade-insecure/image-40px.png
new file mode 100644
index 0000000000..fe391dc8a2
Binary files /dev/null and b/dom/serviceworkers/test/fetch/upgrade-insecure/image-40px.png differ
diff --git a/dom/serviceworkers/test/fetch/upgrade-insecure/image.html b/dom/serviceworkers/test/fetch/upgrade-insecure/image.html
new file mode 100644
index 0000000000..dfcfd80014
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/upgrade-insecure/image.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<script>
+onload=function(){
+  var img = new Image();
+  img.src = "http://example.com/tests/dom/serviceworkers/test/fetch/upgrade-insecure/image-20px.png";
+  img.onload = function() {
+    window.parent.postMessage({status: "image", data: img.width}, "*");
+  };
+  img.onerror = function() {
+    window.parent.postMessage({status: "image", data: "error"}, "*");
+  };
+};
+</script>
diff --git a/dom/serviceworkers/test/fetch/upgrade-insecure/realindex.html b/dom/serviceworkers/test/fetch/upgrade-insecure/realindex.html
new file mode 100644
index 0000000000..aaa255aad3
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/upgrade-insecure/realindex.html
@@ -0,0 +1,4 @@
+<!DOCTYPE html>
+<script>
+  window.parent.postMessage({status: "protocol", data: location.protocol}, "*");
+</script>
diff --git a/dom/serviceworkers/test/fetch/upgrade-insecure/register.html b/dom/serviceworkers/test/fetch/upgrade-insecure/register.html
new file mode 100644
index 0000000000..6309b9b218
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/upgrade-insecure/register.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<script>
+  function ok(v, msg) {
+    window.parent.postMessage({status: "ok", result: !!v, message: msg}, "*");
+  }
+
+  function done(reg) {
+    ok(reg.active, "The active worker should be available.");
+    window.parent.postMessage({status: "registrationdone"}, "*");
+  }
+
+  navigator.serviceWorker.ready.then(done);
+  navigator.serviceWorker.register("upgrade-insecure_test.js", {scope: "."});
+</script>
diff --git a/dom/serviceworkers/test/fetch/upgrade-insecure/unregister.html b/dom/serviceworkers/test/fetch/upgrade-insecure/unregister.html
new file mode 100644
index 0000000000..1f13508fa7
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/upgrade-insecure/unregister.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<script>
+  navigator.serviceWorker.getRegistration(".").then(function(registration) {
+    registration.unregister().then(function(success) {
+      if (success) {
+        window.parent.postMessage({status: "unregistrationdone"}, "*");
+      }
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  });
+</script>
diff --git a/dom/serviceworkers/test/fetch/upgrade-insecure/upgrade-insecure_test.js b/dom/serviceworkers/test/fetch/upgrade-insecure/upgrade-insecure_test.js
new file mode 100644
index 0000000000..74b9ed23ba
--- /dev/null
+++ b/dom/serviceworkers/test/fetch/upgrade-insecure/upgrade-insecure_test.js
@@ -0,0 +1,11 @@
+self.addEventListener("fetch", function (event) {
+  if (event.request.url.includes("index.html")) {
+    event.respondWith(fetch("realindex.html"));
+  } else if (event.request.url.includes("image-20px.png")) {
+    if (event.request.url.indexOf("https://") == 0) {
+      event.respondWith(fetch("image-40px.png"));
+    } else {
+      event.respondWith(Response.error());
+    }
+  }
+});
diff --git a/dom/serviceworkers/test/fetch_event_worker.js b/dom/serviceworkers/test/fetch_event_worker.js
new file mode 100644
index 0000000000..b022ca4175
--- /dev/null
+++ b/dom/serviceworkers/test/fetch_event_worker.js
@@ -0,0 +1,364 @@
+// eslint-disable-next-line complexity
+onfetch = function (ev) {
+  if (ev.request.url.includes("ignore")) {
+    return;
+  }
+
+  if (ev.request.url.includes("bare-synthesized.txt")) {
+    ev.respondWith(
+      Promise.resolve(new Response("synthesized response body", {}))
+    );
+  } else if (ev.request.url.includes("file_CrossSiteXHR_server.sjs")) {
+    // N.B. this response would break the rules of CORS if it were allowed, but
+    //      this test relies upon the preflight request not being intercepted and
+    //      thus this response should not be used.
+    if (ev.request.method == "OPTIONS") {
+      ev.respondWith(
+        new Response("", {
+          headers: {
+            "Access-Control-Allow-Origin": "*",
+            "Access-Control-Allow-Headers": "X-Unsafe",
+          },
+        })
+      );
+    } else if (ev.request.url.includes("example.org")) {
+      ev.respondWith(fetch(ev.request));
+    }
+  } else if (ev.request.url.includes("synthesized-404.txt")) {
+    ev.respondWith(
+      Promise.resolve(
+        new Response("synthesized response body", { status: 404 })
+      )
+    );
+  } else if (ev.request.url.includes("synthesized-headers.txt")) {
+    ev.respondWith(
+      Promise.resolve(
+        new Response("synthesized response body", {
+          headers: {
+            "X-Custom-Greeting": "Hello",
+          },
+        })
+      )
+    );
+  } else if (ev.request.url.includes("test-respondwith-response.txt")) {
+    ev.respondWith(new Response("test-respondwith-response response body", {}));
+  } else if (ev.request.url.includes("synthesized-redirect-real-file.txt")) {
+    ev.respondWith(Promise.resolve(Response.redirect("fetch/real-file.txt")));
+  } else if (
+    ev.request.url.includes("synthesized-redirect-twice-real-file.txt")
+  ) {
+    ev.respondWith(
+      Promise.resolve(Response.redirect("synthesized-redirect-real-file.txt"))
+    );
+  } else if (ev.request.url.includes("synthesized-redirect-synthesized.txt")) {
+    ev.respondWith(Promise.resolve(Response.redirect("bare-synthesized.txt")));
+  } else if (
+    ev.request.url.includes("synthesized-redirect-twice-synthesized.txt")
+  ) {
+    ev.respondWith(
+      Promise.resolve(Response.redirect("synthesized-redirect-synthesized.txt"))
+    );
+  } else if (ev.request.url.includes("rejected.txt")) {
+    ev.respondWith(Promise.reject());
+  } else if (ev.request.url.includes("nonresponse.txt")) {
+    ev.respondWith(Promise.resolve(5));
+  } else if (ev.request.url.includes("nonresponse2.txt")) {
+    ev.respondWith(Promise.resolve({}));
+  } else if (ev.request.url.includes("nonpromise.txt")) {
+    try {
+      // This should coerce to Promise(5) instead of throwing
+      ev.respondWith(5);
+    } catch (e) {
+      // test is expecting failure, so return a success if we get a thrown
+      // exception
+      ev.respondWith(new Response("respondWith(5) threw " + e));
+    }
+  } else if (ev.request.url.includes("headers.txt")) {
+    var ok = true;
+    ok &= ev.request.headers.get("X-Test1") == "header1";
+    ok &= ev.request.headers.get("X-Test2") == "header2";
+    ev.respondWith(Promise.resolve(new Response(ok.toString(), {})));
+  } else if (ev.request.url.includes("readable-stream.txt")) {
+    ev.respondWith(
+      new Response(
+        new ReadableStream({
+          start(controller) {
+            controller.enqueue(
+              new Uint8Array([0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x21])
+            );
+            controller.close();
+          },
+        })
+      )
+    );
+  } else if (ev.request.url.includes("readable-stream-locked.txt")) {
+    let stream = new ReadableStream({
+      start(controller) {
+        controller.enqueue(
+          new Uint8Array([0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x21])
+        );
+        controller.close();
+      },
+    });
+
+    ev.respondWith(new Response(stream));
+
+    // This locks the stream.
+    stream.getReader();
+  } else if (ev.request.url.includes("readable-stream-with-exception.txt")) {
+    ev.respondWith(
+      new Response(
+        new ReadableStream({
+          start(controller) {},
+          pull() {
+            throw "EXCEPTION!";
+          },
+        })
+      )
+    );
+  } else if (ev.request.url.includes("readable-stream-with-exception2.txt")) {
+    ev.respondWith(
+      new Response(
+        new ReadableStream({
+          _controller: null,
+          _count: 0,
+
+          start(controller) {
+            this._controller = controller;
+          },
+          pull() {
+            if (++this._count == 5) {
+              throw "EXCEPTION 2!";
+            }
+            this._controller.enqueue(new Uint8Array([this._count]));
+          },
+        })
+      )
+    );
+  } else if (ev.request.url.includes("readable-stream-already-consumed.txt")) {
+    let r = new Response(
+      new ReadableStream({
+        start(controller) {
+          controller.enqueue(
+            new Uint8Array([0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x21])
+          );
+          controller.close();
+        },
+      })
+    );
+
+    r.blob();
+
+    ev.respondWith(r);
+  } else if (ev.request.url.includes("user-pass")) {
+    ev.respondWith(new Response(ev.request.url));
+  } else if (ev.request.url.includes("nonexistent_image.gif")) {
+    var imageAsBinaryString = atob(
+      "R0lGODlhAQABAIAAAAUEBAAAACwAAAAAAQABAAACAkQBADs"
+    );
+    var imageLength = imageAsBinaryString.length;
+
+    // If we just pass |imageAsBinaryString| to the Response constructor, an
+    // encoding conversion occurs that corrupts the image. Instead, we need to
+    // convert it to a typed array.
+    // typed array.
+    var imageAsArray = new Uint8Array(imageLength);
+    for (var i = 0; i < imageLength; ++i) {
+      imageAsArray[i] = imageAsBinaryString.charCodeAt(i);
+    }
+
+    ev.respondWith(
+      Promise.resolve(
+        new Response(imageAsArray, { headers: { "Content-Type": "image/gif" } })
+      )
+    );
+  } else if (ev.request.url.includes("nonexistent_script.js")) {
+    ev.respondWith(
+      Promise.resolve(new Response("check_intercepted_script();", {}))
+    );
+  } else if (ev.request.url.includes("nonexistent_stylesheet.css")) {
+    ev.respondWith(
+      Promise.resolve(
+        new Response("#style-test { background-color: black !important; }", {
+          headers: {
+            "Content-Type": "text/css",
+          },
+        })
+      )
+    );
+  } else if (ev.request.url.includes("nonexistent_page.html")) {
+    ev.respondWith(
+      Promise.resolve(
+        new Response(
+          "<script>window.frameElement.test_result = true;</script>",
+          {
+            headers: {
+              "Content-Type": "text/html",
+            },
+          }
+        )
+      )
+    );
+  } else if (ev.request.url.includes("navigate.html")) {
+    var requests = [
+      // should not throw
+      new Request(ev.request),
+      new Request(ev.request, undefined),
+      new Request(ev.request, null),
+      new Request(ev.request, {}),
+      new Request(ev.request, { someUnrelatedProperty: 42 }),
+      new Request(ev.request, { method: "GET" }),
+    ];
+    ev.respondWith(
+      Promise.resolve(
+        new Response(
+          "<script>window.frameElement.test_result = true;</script>",
+          {
+            headers: {
+              "Content-Type": "text/html",
+            },
+          }
+        )
+      )
+    );
+  } else if (ev.request.url.includes("nonexistent_worker_script.js")) {
+    ev.respondWith(
+      Promise.resolve(
+        new Response("postMessage('worker-intercept-success')", {
+          headers: { "Content-Type": "text/javascript" },
+        })
+      )
+    );
+  } else if (ev.request.url.includes("nonexistent_imported_script.js")) {
+    ev.respondWith(
+      Promise.resolve(
+        new Response("check_intercepted_script();", {
+          headers: { "Content-Type": "text/javascript" },
+        })
+      )
+    );
+  } else if (ev.request.url.includes("deliver-gzip")) {
+    // Don't handle the request, this will make Necko perform a network request, at
+    // which point SetApplyConversion must be re-enabled, otherwise the request
+    // will fail.
+    return;
+  } else if (ev.request.url.includes("hello.gz")) {
+    ev.respondWith(fetch("fetch/deliver-gzip.sjs"));
+  } else if (ev.request.url.includes("hello-after-extracting.gz")) {
+    ev.respondWith(
+      fetch("fetch/deliver-gzip.sjs").then(function (res) {
+        return res.text().then(function (body) {
+          return new Response(body, {
+            status: res.status,
+            statusText: res.statusText,
+            headers: res.headers,
+          });
+        });
+      })
+    );
+  } else if (ev.request.url.includes("opaque-on-same-origin")) {
+    var url =
+      "http://example.com/tests/dom/security/test/cors/file_CrossSiteXHR_server.sjs?status=200";
+    ev.respondWith(fetch(url, { mode: "no-cors" }));
+  } else if (ev.request.url.includes("opaque-no-cors")) {
+    if (ev.request.mode != "no-cors") {
+      ev.respondWith(Promise.reject());
+      return;
+    }
+
+    var url =
+      "http://example.com/tests/dom/security/test/cors/file_CrossSiteXHR_server.sjs?status=200";
+    ev.respondWith(fetch(url, { mode: ev.request.mode }));
+  } else if (ev.request.url.includes("cors-for-no-cors")) {
+    if (ev.request.mode != "no-cors") {
+      ev.respondWith(Promise.reject());
+      return;
+    }
+
+    var url =
+      "http://example.com/tests/dom/security/test/cors/file_CrossSiteXHR_server.sjs?status=200&allowOrigin=*";
+    ev.respondWith(fetch(url));
+  } else if (ev.request.url.includes("example.com")) {
+    ev.respondWith(fetch(ev.request));
+  } else if (ev.request.url.includes("body-")) {
+    ev.respondWith(
+      ev.request.text().then(function (body) {
+        return new Response(body + body);
+      })
+    );
+  } else if (ev.request.url.includes("something.txt")) {
+    ev.respondWith(Response.redirect("fetch/somethingelse.txt"));
+  } else if (ev.request.url.includes("somethingelse.txt")) {
+    ev.respondWith(new Response("something else response body", {}));
+  } else if (ev.request.url.includes("redirect_serviceworker.sjs")) {
+    // The redirect_serviceworker.sjs server-side JavaScript file redirects to
+    // 'http://mochi.test:8888/tests/dom/serviceworkers/test/worker.js'
+    // The redirected fetch should not go through the SW since the original
+    // fetch was initiated from a SW.
+    ev.respondWith(fetch("redirect_serviceworker.sjs"));
+  } else if (
+    ev.request.url.includes("load_cross_origin_xml_document_synthetic.xml")
+  ) {
+    ev.respondWith(
+      Promise.resolve(
+        new Response("<response>body</response>", {
+          headers: { "Content-Type": "text/xtml" },
+        })
+      )
+    );
+  } else if (
+    ev.request.url.includes("load_cross_origin_xml_document_cors.xml")
+  ) {
+    if (ev.request.mode != "same-origin") {
+      ev.respondWith(Promise.reject());
+      return;
+    }
+
+    var url =
+      "http://example.com/tests/dom/security/test/cors/file_CrossSiteXHR_server.sjs?status=200&allowOrigin=*";
+    ev.respondWith(fetch(url, { mode: "cors" }));
+  } else if (
+    ev.request.url.includes("load_cross_origin_xml_document_opaque.xml")
+  ) {
+    if (ev.request.mode != "same-origin") {
+      Promise.resolve(
+        new Response("<error>Invalid Request mode</error>", {
+          headers: { "Content-Type": "text/xtml" },
+        })
+      );
+      return;
+    }
+
+    var url =
+      "http://example.com/tests/dom/security/test/cors/file_CrossSiteXHR_server.sjs?status=200";
+    ev.respondWith(fetch(url, { mode: "no-cors" }));
+  } else if (ev.request.url.includes("xhr-method-test.txt")) {
+    ev.respondWith(new Response("intercepted " + ev.request.method));
+  } else if (ev.request.url.includes("empty-header")) {
+    if (
+      !ev.request.headers.has("emptyheader") ||
+      ev.request.headers.get("emptyheader") !== ""
+    ) {
+      ev.respondWith(Promise.reject());
+      return;
+    }
+    ev.respondWith(new Response("emptyheader"));
+  } else if (ev.request.url.includes("fetchevent-extendable")) {
+    if (ev instanceof ExtendableEvent) {
+      ev.respondWith(new Response("extendable"));
+    } else {
+      ev.respondWith(Promise.reject());
+    }
+  } else if (ev.request.url.includes("fetchevent-request")) {
+    var threw = false;
+    try {
+      new FetchEvent("foo");
+    } catch (e) {
+      if (e.name == "TypeError") {
+        threw = true;
+      }
+    } finally {
+      ev.respondWith(new Response(threw ? "non-nullable" : "nullable"));
+    }
+  }
+};
diff --git a/dom/serviceworkers/test/file_blob_response_worker.js b/dom/serviceworkers/test/file_blob_response_worker.js
new file mode 100644
index 0000000000..e9d5366c42
--- /dev/null
+++ b/dom/serviceworkers/test/file_blob_response_worker.js
@@ -0,0 +1,39 @@
+function makeFileBlob(obj) {
+  return new Promise(function (resolve, reject) {
+    var request = indexedDB.open("file_blob_response_worker", 1);
+    request.onerror = reject;
+    request.onupgradeneeded = function (evt) {
+      var db = evt.target.result;
+      db.onerror = reject;
+
+      var objectStore = db.createObjectStore("test", { autoIncrement: true });
+      var index = objectStore.createIndex("test", "index");
+    };
+
+    request.onsuccess = function (evt) {
+      var db = evt.target.result;
+      db.onerror = reject;
+
+      var blob = new Blob([JSON.stringify(obj)], { type: "application/json" });
+      var data = { blob, index: 5 };
+
+      objectStore = db.transaction("test", "readwrite").objectStore("test");
+      objectStore.add(data).onsuccess = function (event) {
+        var key = event.target.result;
+        objectStore = db.transaction("test").objectStore("test");
+        objectStore.get(key).onsuccess = function (event1) {
+          resolve(event1.target.result.blob);
+        };
+      };
+    };
+  });
+}
+
+self.addEventListener("fetch", function (evt) {
+  var result = { value: "success" };
+  evt.respondWith(
+    makeFileBlob(result).then(function (blob) {
+      return new Response(blob);
+    })
+  );
+});
diff --git a/dom/serviceworkers/test/file_js_cache.html b/dom/serviceworkers/test/file_js_cache.html
new file mode 100644
index 0000000000..6feb94d872
--- /dev/null
+++ b/dom/serviceworkers/test/file_js_cache.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Add a tag script to save the bytecode</title>
+</head>
+<body>
+  <script id="watchme" src="file_js_cache.js"></script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/file_js_cache.js b/dom/serviceworkers/test/file_js_cache.js
new file mode 100644
index 0000000000..b9b966775c
--- /dev/null
+++ b/dom/serviceworkers/test/file_js_cache.js
@@ -0,0 +1,5 @@
+function baz() {}
+function bar() {}
+function foo() { bar() }
+foo();
+
diff --git a/dom/serviceworkers/test/file_js_cache_cleanup.js b/dom/serviceworkers/test/file_js_cache_cleanup.js
new file mode 100644
index 0000000000..c6853faaf2
--- /dev/null
+++ b/dom/serviceworkers/test/file_js_cache_cleanup.js
@@ -0,0 +1,16 @@
+"use strict";
+const { XPCOMUtils } = ChromeUtils.importESModule(
+  "resource://gre/modules/XPCOMUtils.sys.mjs"
+);
+
+function clearCache() {
+  const cacheStorageSrv = Cc[
+    "@mozilla.org/netwerk/cache-storage-service;1"
+  ].getService(Ci.nsICacheStorageService);
+  cacheStorageSrv.clear();
+}
+
+addMessageListener("teardown", function () {
+  clearCache();
+  sendAsyncMessage("teardown-complete");
+});
diff --git a/dom/serviceworkers/test/file_js_cache_save_after_load.html b/dom/serviceworkers/test/file_js_cache_save_after_load.html
new file mode 100644
index 0000000000..8a696c0026
--- /dev/null
+++ b/dom/serviceworkers/test/file_js_cache_save_after_load.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Save the bytecode when all scripts are executed</title>
+</head>
+<body>
+  <script id="watchme" src="file_js_cache_save_after_load.js"></script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/file_js_cache_save_after_load.js b/dom/serviceworkers/test/file_js_cache_save_after_load.js
new file mode 100644
index 0000000000..7f5a20b524
--- /dev/null
+++ b/dom/serviceworkers/test/file_js_cache_save_after_load.js
@@ -0,0 +1,15 @@
+function send_ping() {
+  window.dispatchEvent(new Event("ping"));
+}
+send_ping(); // ping (=1)
+
+window.addEventListener("load", function () {
+  send_ping(); // ping (=2)
+
+  // Append a script which should call |foo|, before the encoding of this script
+  // bytecode.
+  var script = document.createElement("script");
+  script.type = "text/javascript";
+  script.innerText = "send_ping();"; // ping (=3)
+  document.head.appendChild(script);
+});
diff --git a/dom/serviceworkers/test/file_js_cache_syntax_error.html b/dom/serviceworkers/test/file_js_cache_syntax_error.html
new file mode 100644
index 0000000000..cc4a9b2daa
--- /dev/null
+++ b/dom/serviceworkers/test/file_js_cache_syntax_error.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Do not save bytecode on compilation errors</title>
+</head>
+<body>
+  <script id="watchme" src="file_js_cache_syntax_error.js"></script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/file_js_cache_syntax_error.js b/dom/serviceworkers/test/file_js_cache_syntax_error.js
new file mode 100644
index 0000000000..fcf587ae70
--- /dev/null
+++ b/dom/serviceworkers/test/file_js_cache_syntax_error.js
@@ -0,0 +1 @@
+var // SyntaxError: missing variable name.
diff --git a/dom/serviceworkers/test/file_js_cache_with_sri.html b/dom/serviceworkers/test/file_js_cache_with_sri.html
new file mode 100644
index 0000000000..38ecb26984
--- /dev/null
+++ b/dom/serviceworkers/test/file_js_cache_with_sri.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Add a tag script to save the bytecode</title>
+</head>
+<body>
+  <script id="watchme" src="file_js_cache.js"
+          integrity="sha384-8YSwN2ywq1SVThihWhj7uTVZ4UeIDwo3GgdPYnug+C+OS0oa6kH2IXBclwMaDJFb">
+  </script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/file_notification_openWindow.html b/dom/serviceworkers/test/file_notification_openWindow.html
new file mode 100644
index 0000000000..f220f4808d
--- /dev/null
+++ b/dom/serviceworkers/test/file_notification_openWindow.html
@@ -0,0 +1,26 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1578070</title>
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+window.onload = () => {
+  navigator.serviceWorker.ready.then(() => {
+    // Open and close a new window.
+    window.open("https://example.org/").close();
+
+    // If we make it here, then we didn't crash. Tell the worker we're done.
+    navigator.serviceWorker.controller.postMessage("DONE");
+
+    // We're done!
+    window.close();
+  });
+}
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/file_userContextId_openWindow.js b/dom/serviceworkers/test/file_userContextId_openWindow.js
new file mode 100644
index 0000000000..649a3152ba
--- /dev/null
+++ b/dom/serviceworkers/test/file_userContextId_openWindow.js
@@ -0,0 +1,3 @@
+onnotificationclick = event => {
+  clients.openWindow("empty.html");
+};
diff --git a/dom/serviceworkers/test/force_refresh_browser_worker.js b/dom/serviceworkers/test/force_refresh_browser_worker.js
new file mode 100644
index 0000000000..58256468bd
--- /dev/null
+++ b/dom/serviceworkers/test/force_refresh_browser_worker.js
@@ -0,0 +1,42 @@
+var name = "browserRefresherCache";
+
+self.addEventListener("install", function (event) {
+  event.waitUntil(
+    Promise.all([
+      caches.open(name),
+      fetch("./browser_cached_force_refresh.html"),
+    ]).then(function (results) {
+      var cache = results[0];
+      var response = results[1];
+      return cache.put("./browser_base_force_refresh.html", response);
+    })
+  );
+});
+
+self.addEventListener("fetch", function (event) {
+  event.respondWith(
+    caches
+      .open(name)
+      .then(function (cache) {
+        return cache.match(event.request);
+      })
+      .then(function (response) {
+        return response || fetch(event.request);
+      })
+  );
+});
+
+self.addEventListener("message", function (event) {
+  if (event.data.type === "GET_UNCONTROLLED_CLIENTS") {
+    event.waitUntil(
+      clients
+        .matchAll({ includeUncontrolled: true })
+        .then(function (clientList) {
+          var resultList = clientList.map(function (c) {
+            return { url: c.url, frameType: c.frameType };
+          });
+          event.source.postMessage({ type: "CLIENTS", detail: resultList });
+        })
+    );
+  }
+});
diff --git a/dom/serviceworkers/test/force_refresh_worker.js b/dom/serviceworkers/test/force_refresh_worker.js
new file mode 100644
index 0000000000..8c8382493a
--- /dev/null
+++ b/dom/serviceworkers/test/force_refresh_worker.js
@@ -0,0 +1,43 @@
+var name = "refresherCache";
+
+self.addEventListener("install", function (event) {
+  event.waitUntil(
+    Promise.all([
+      caches.open(name),
+      fetch("./sw_clients/refresher_cached.html"),
+      fetch("./sw_clients/refresher_cached_compressed.html"),
+    ]).then(function (results) {
+      var cache = results[0];
+      var response = results[1];
+      var compressed = results[2];
+      return Promise.all([
+        cache.put("./sw_clients/refresher.html", response),
+        cache.put("./sw_clients/refresher_compressed.html", compressed),
+      ]);
+    })
+  );
+});
+
+self.addEventListener("fetch", function (event) {
+  event.respondWith(
+    caches
+      .open(name)
+      .then(function (cache) {
+        return cache.match(event.request);
+      })
+      .then(function (response) {
+        // If this is one of our primary cached responses, then the window
+        // must have generated the request via a normal window reload.  That
+        // should be detectable in the event.request.cache attribute.
+        if (response && event.request.cache !== "no-cache") {
+          dump(
+            '### ### FetchEvent.request.cache is "' +
+              event.request.cache +
+              '" instead of expected "no-cache"\n'
+          );
+          return Response.error();
+        }
+        return response || fetch(event.request);
+      })
+  );
+});
diff --git a/dom/serviceworkers/test/gtest/TestReadWrite.cpp b/dom/serviceworkers/test/gtest/TestReadWrite.cpp
new file mode 100644
index 0000000000..fbe71d7108
--- /dev/null
+++ b/dom/serviceworkers/test/gtest/TestReadWrite.cpp
@@ -0,0 +1,952 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "gtest/gtest.h"
+#include "mozilla/BasePrincipal.h"
+#include "mozilla/dom/ServiceWorkerRegistrar.h"
+#include "mozilla/dom/ServiceWorkerRegistrarTypes.h"
+#include "mozilla/ipc/PBackgroundSharedTypes.h"
+
+#include "nsAppDirectoryServiceDefs.h"
+#include "nsIFile.h"
+#include "nsIOutputStream.h"
+#include "nsNetUtil.h"
+#include "nsPrintfCString.h"
+#include "nsIServiceWorkerManager.h"
+
+#include "prtime.h"
+
+using namespace mozilla::dom;
+using namespace mozilla::ipc;
+
+class ServiceWorkerRegistrarTest : public ServiceWorkerRegistrar {
+ public:
+  ServiceWorkerRegistrarTest() {
+#ifdef MOZ_DIAGNOSTIC_ASSERT_ENABLED
+    nsresult rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR,
+                                         getter_AddRefs(mProfileDir));
+    MOZ_DIAGNOSTIC_ASSERT(NS_SUCCEEDED(rv));
+#else
+    NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR,
+                           getter_AddRefs(mProfileDir));
+#endif
+    MOZ_DIAGNOSTIC_ASSERT(mProfileDir);
+  }
+
+  nsresult TestReadData() { return ReadData(); }
+  nsresult TestWriteData() MOZ_NO_THREAD_SAFETY_ANALYSIS {
+    return WriteData(mData);
+  }
+  void TestDeleteData() { DeleteData(); }
+
+  void TestRegisterServiceWorker(const ServiceWorkerRegistrationData& aData) {
+    mozilla::MonitorAutoLock lock(mMonitor);
+    RegisterServiceWorkerInternal(aData);
+  }
+
+  nsTArray<ServiceWorkerRegistrationData>& TestGetData() { return mData; }
+};
+
+already_AddRefed<nsIFile> GetFile() {
+  nsCOMPtr<nsIFile> file;
+  nsresult rv =
+      NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(file));
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return nullptr;
+  }
+
+  file->Append(nsLiteralString(SERVICEWORKERREGISTRAR_FILE));
+  return file.forget();
+}
+
+bool CreateFile(const nsACString& aData) {
+  nsCOMPtr<nsIFile> file = GetFile();
+
+  nsCOMPtr<nsIOutputStream> stream;
+  nsresult rv = NS_NewLocalFileOutputStream(getter_AddRefs(stream), file);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return false;
+  }
+
+  uint32_t count;
+  rv = stream->Write(aData.Data(), aData.Length(), &count);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return false;
+  }
+
+  if (count != aData.Length()) {
+    return false;
+  }
+
+  return true;
+}
+
+TEST(ServiceWorkerRegistrar, TestNoFile)
+{
+  nsCOMPtr<nsIFile> file = GetFile();
+  ASSERT_TRUE(file)
+  << "GetFile must return a nsIFIle";
+
+  bool exists;
+  nsresult rv = file->Exists(&exists);
+  ASSERT_EQ(NS_OK, rv) << "nsIFile::Exists cannot fail";
+
+  if (exists) {
+    rv = file->Remove(false);
+    ASSERT_EQ(NS_OK, rv) << "nsIFile::Remove cannot fail";
+  }
+
+  RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+  rv = swr->TestReadData();
+  ASSERT_EQ(NS_OK, rv) << "ReadData() should not fail";
+
+  const nsTArray<ServiceWorkerRegistrationData>& data = swr->TestGetData();
+  ASSERT_EQ((uint32_t)0, data.Length())
+      << "No data should be found in an empty file";
+}
+
+TEST(ServiceWorkerRegistrar, TestEmptyFile)
+{
+  ASSERT_TRUE(CreateFile(""_ns))
+  << "CreateFile should not fail";
+
+  RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+  nsresult rv = swr->TestReadData();
+  ASSERT_NE(NS_OK, rv) << "ReadData() should fail if the file is empty";
+
+  const nsTArray<ServiceWorkerRegistrationData>& data = swr->TestGetData();
+  ASSERT_EQ((uint32_t)0, data.Length())
+      << "No data should be found in an empty file";
+}
+
+TEST(ServiceWorkerRegistrar, TestRightVersionFile)
+{
+  ASSERT_TRUE(CreateFile(nsLiteralCString(SERVICEWORKERREGISTRAR_VERSION "\n")))
+  << "CreateFile should not fail";
+
+  RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+  nsresult rv = swr->TestReadData();
+  ASSERT_EQ(NS_OK, rv)
+      << "ReadData() should not fail when the version is correct";
+
+  const nsTArray<ServiceWorkerRegistrationData>& data = swr->TestGetData();
+  ASSERT_EQ((uint32_t)0, data.Length())
+      << "No data should be found in an empty file";
+}
+
+TEST(ServiceWorkerRegistrar, TestWrongVersionFile)
+{
+  ASSERT_TRUE(
+      CreateFile(nsLiteralCString(SERVICEWORKERREGISTRAR_VERSION "bla\n")))
+  << "CreateFile should not fail";
+
+  RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+  nsresult rv = swr->TestReadData();
+  ASSERT_NE(NS_OK, rv)
+      << "ReadData() should fail when the version is not correct";
+
+  const nsTArray<ServiceWorkerRegistrationData>& data = swr->TestGetData();
+  ASSERT_EQ((uint32_t)0, data.Length())
+      << "No data should be found in an empty file";
+}
+
+TEST(ServiceWorkerRegistrar, TestReadData)
+{
+  nsAutoCString buffer(SERVICEWORKERREGISTRAR_VERSION "\n");
+
+  buffer.AppendLiteral("^inBrowser=1\n");
+  buffer.AppendLiteral("https://scope_0.org\ncurrentWorkerURL 0\n");
+  buffer.Append(SERVICEWORKERREGISTRAR_TRUE "\n");
+  buffer.AppendLiteral("cacheName 0\n");
+  buffer.AppendInt(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+                   16);
+  buffer.AppendLiteral("\n");
+  buffer.AppendInt(0);
+  buffer.AppendLiteral("\n");
+  buffer.AppendInt(0);
+  buffer.AppendLiteral("\n");
+  buffer.AppendInt(0);
+  buffer.AppendLiteral("\n");
+  buffer.AppendInt(0);
+  buffer.AppendLiteral("\n");
+  buffer.AppendLiteral("true\n");
+  buffer.Append(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  buffer.AppendLiteral("\n");
+  buffer.AppendLiteral("https://scope_1.org\ncurrentWorkerURL 1\n");
+  buffer.Append(SERVICEWORKERREGISTRAR_FALSE "\n");
+  buffer.AppendLiteral("cacheName 1\n");
+  buffer.AppendInt(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_ALL, 16);
+  buffer.AppendLiteral("\n");
+  PRTime ts = PR_Now();
+  buffer.AppendInt(ts);
+  buffer.AppendLiteral("\n");
+  buffer.AppendInt(ts);
+  buffer.AppendLiteral("\n");
+  buffer.AppendInt(ts);
+  buffer.AppendLiteral("\n");
+  buffer.AppendInt(1);
+  buffer.AppendLiteral("\n");
+  buffer.AppendLiteral("false\n");
+  buffer.Append(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  ASSERT_TRUE(CreateFile(buffer))
+  << "CreateFile should not fail";
+
+  RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+  nsresult rv = swr->TestReadData();
+  ASSERT_EQ(NS_OK, rv) << "ReadData() should not fail";
+
+  const nsTArray<ServiceWorkerRegistrationData>& data = swr->TestGetData();
+  ASSERT_EQ((uint32_t)2, data.Length()) << "2 entries should be found";
+
+  const mozilla::ipc::PrincipalInfo& info0 = data[0].principal();
+  ASSERT_EQ(info0.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo0 = data[0].principal();
+
+  nsAutoCString suffix0;
+  cInfo0.attrs().CreateSuffix(suffix0);
+
+  ASSERT_STREQ("^inBrowser=1", suffix0.get());
+  ASSERT_STREQ("https://scope_0.org", cInfo0.spec().get());
+  ASSERT_STREQ("https://scope_0.org", data[0].scope().get());
+  ASSERT_STREQ("currentWorkerURL 0", data[0].currentWorkerURL().get());
+  ASSERT_TRUE(data[0].currentWorkerHandlesFetch());
+  ASSERT_STREQ("cacheName 0", NS_ConvertUTF16toUTF8(data[0].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+            data[0].updateViaCache());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)0, data[0].lastUpdateTime());
+  ASSERT_EQ(false, data[0].navigationPreloadState().enabled());
+  ASSERT_STREQ("true", data[0].navigationPreloadState().headerValue().get());
+
+  const mozilla::ipc::PrincipalInfo& info1 = data[1].principal();
+  ASSERT_EQ(info1.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo1 = data[1].principal();
+
+  nsAutoCString suffix1;
+  cInfo1.attrs().CreateSuffix(suffix1);
+
+  ASSERT_STREQ("", suffix1.get());
+  ASSERT_STREQ("https://scope_1.org", cInfo1.spec().get());
+  ASSERT_STREQ("https://scope_1.org", data[1].scope().get());
+  ASSERT_STREQ("currentWorkerURL 1", data[1].currentWorkerURL().get());
+  ASSERT_FALSE(data[1].currentWorkerHandlesFetch());
+  ASSERT_STREQ("cacheName 1", NS_ConvertUTF16toUTF8(data[1].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_ALL,
+            data[1].updateViaCache());
+  ASSERT_EQ((int64_t)ts, data[1].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)ts, data[1].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)ts, data[1].lastUpdateTime());
+  ASSERT_EQ(true, data[1].navigationPreloadState().enabled());
+  ASSERT_STREQ("false", data[1].navigationPreloadState().headerValue().get());
+}
+
+TEST(ServiceWorkerRegistrar, TestDeleteData)
+{
+  ASSERT_TRUE(CreateFile("Foobar"_ns))
+  << "CreateFile should not fail";
+
+  RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+  swr->TestDeleteData();
+
+  nsCOMPtr<nsIFile> file = GetFile();
+
+  bool exists;
+  nsresult rv = file->Exists(&exists);
+  ASSERT_EQ(NS_OK, rv) << "nsIFile::Exists cannot fail";
+
+  ASSERT_FALSE(exists)
+  << "The file should not exist after a DeleteData().";
+}
+
+TEST(ServiceWorkerRegistrar, TestWriteData)
+{
+  {
+    RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+    for (int i = 0; i < 2; ++i) {
+      ServiceWorkerRegistrationData reg;
+
+      reg.scope() = nsPrintfCString("https://scope_write_%d.org", i);
+      reg.currentWorkerURL() = nsPrintfCString("currentWorkerURL write %d", i);
+      reg.currentWorkerHandlesFetch() = true;
+      reg.cacheName() =
+          NS_ConvertUTF8toUTF16(nsPrintfCString("cacheName write %d", i));
+      reg.updateViaCache() =
+          nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS;
+
+      reg.currentWorkerInstalledTime() = PR_Now();
+      reg.currentWorkerActivatedTime() = PR_Now();
+      reg.lastUpdateTime() = PR_Now();
+
+      nsAutoCString spec;
+      spec.AppendPrintf("spec write %d", i);
+
+      reg.principal() = mozilla::ipc::ContentPrincipalInfo(
+          mozilla::OriginAttributes(i % 2), spec, spec, mozilla::Nothing(),
+          spec);
+
+      swr->TestRegisterServiceWorker(reg);
+    }
+
+    nsresult rv = swr->TestWriteData();
+    ASSERT_EQ(NS_OK, rv) << "WriteData() should not fail";
+  }
+
+  RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+  nsresult rv = swr->TestReadData();
+  ASSERT_EQ(NS_OK, rv) << "ReadData() should not fail";
+
+  const nsTArray<ServiceWorkerRegistrationData>& data = swr->TestGetData();
+  ASSERT_EQ((uint32_t)2, data.Length()) << "2 entries should be found";
+
+  for (int i = 0; i < 2; ++i) {
+    nsAutoCString test;
+
+    ASSERT_EQ(data[i].principal().type(),
+              mozilla::ipc::PrincipalInfo::TContentPrincipalInfo);
+    const mozilla::ipc::ContentPrincipalInfo& cInfo = data[i].principal();
+
+    mozilla::OriginAttributes attrs(i % 2);
+    nsAutoCString suffix, expectSuffix;
+    attrs.CreateSuffix(expectSuffix);
+    cInfo.attrs().CreateSuffix(suffix);
+
+    ASSERT_STREQ(expectSuffix.get(), suffix.get());
+
+    test.AppendPrintf("https://scope_write_%d.org", i);
+    ASSERT_STREQ(test.get(), cInfo.spec().get());
+
+    test.Truncate();
+    test.AppendPrintf("https://scope_write_%d.org", i);
+    ASSERT_STREQ(test.get(), data[i].scope().get());
+
+    test.Truncate();
+    test.AppendPrintf("currentWorkerURL write %d", i);
+    ASSERT_STREQ(test.get(), data[i].currentWorkerURL().get());
+
+    ASSERT_EQ(true, data[i].currentWorkerHandlesFetch());
+
+    test.Truncate();
+    test.AppendPrintf("cacheName write %d", i);
+    ASSERT_STREQ(test.get(), NS_ConvertUTF16toUTF8(data[i].cacheName()).get());
+
+    ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+              data[i].updateViaCache());
+
+    ASSERT_NE((int64_t)0, data[i].currentWorkerInstalledTime());
+    ASSERT_NE((int64_t)0, data[i].currentWorkerActivatedTime());
+    ASSERT_NE((int64_t)0, data[i].lastUpdateTime());
+  }
+}
+
+TEST(ServiceWorkerRegistrar, TestVersion2Migration)
+{
+  nsAutoCString buffer(
+      "2"
+      "\n");
+
+  buffer.AppendLiteral("^appId=123&inBrowser=1\n");
+  buffer.AppendLiteral(
+      "spec 0\nhttps://scope_0.org\nscriptSpec 0\ncurrentWorkerURL "
+      "0\nactiveCache 0\nwaitingCache 0\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  buffer.AppendLiteral("\n");
+  buffer.AppendLiteral(
+      "spec 1\nhttps://scope_1.org\nscriptSpec 1\ncurrentWorkerURL "
+      "1\nactiveCache 1\nwaitingCache 1\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  ASSERT_TRUE(CreateFile(buffer))
+  << "CreateFile should not fail";
+
+  RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+  nsresult rv = swr->TestReadData();
+  ASSERT_EQ(NS_OK, rv) << "ReadData() should not fail";
+
+  const nsTArray<ServiceWorkerRegistrationData>& data = swr->TestGetData();
+  ASSERT_EQ((uint32_t)2, data.Length()) << "2 entries should be found";
+
+  const mozilla::ipc::PrincipalInfo& info0 = data[0].principal();
+  ASSERT_EQ(info0.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo0 = data[0].principal();
+
+  nsAutoCString suffix0;
+  cInfo0.attrs().CreateSuffix(suffix0);
+
+  ASSERT_STREQ("^inBrowser=1", suffix0.get());
+  ASSERT_STREQ("https://scope_0.org", cInfo0.spec().get());
+  ASSERT_STREQ("https://scope_0.org", data[0].scope().get());
+  ASSERT_STREQ("currentWorkerURL 0", data[0].currentWorkerURL().get());
+  ASSERT_EQ(true, data[0].currentWorkerHandlesFetch());
+  ASSERT_STREQ("activeCache 0",
+               NS_ConvertUTF16toUTF8(data[0].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+            data[0].updateViaCache());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)0, data[0].lastUpdateTime());
+
+  const mozilla::ipc::PrincipalInfo& info1 = data[1].principal();
+  ASSERT_EQ(info1.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo1 = data[1].principal();
+
+  nsAutoCString suffix1;
+  cInfo1.attrs().CreateSuffix(suffix1);
+
+  ASSERT_STREQ("", suffix1.get());
+  ASSERT_STREQ("https://scope_1.org", cInfo1.spec().get());
+  ASSERT_STREQ("https://scope_1.org", data[1].scope().get());
+  ASSERT_STREQ("currentWorkerURL 1", data[1].currentWorkerURL().get());
+  ASSERT_EQ(true, data[1].currentWorkerHandlesFetch());
+  ASSERT_STREQ("activeCache 1",
+               NS_ConvertUTF16toUTF8(data[1].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+            data[1].updateViaCache());
+  ASSERT_EQ((int64_t)0, data[1].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)0, data[1].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)0, data[1].lastUpdateTime());
+}
+
+TEST(ServiceWorkerRegistrar, TestVersion3Migration)
+{
+  nsAutoCString buffer(
+      "3"
+      "\n");
+
+  buffer.AppendLiteral("^appId=123&inBrowser=1\n");
+  buffer.AppendLiteral(
+      "spec 0\nhttps://scope_0.org\ncurrentWorkerURL 0\ncacheName 0\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  buffer.AppendLiteral("\n");
+  buffer.AppendLiteral(
+      "spec 1\nhttps://scope_1.org\ncurrentWorkerURL 1\ncacheName 1\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  ASSERT_TRUE(CreateFile(buffer))
+  << "CreateFile should not fail";
+
+  RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+  nsresult rv = swr->TestReadData();
+  ASSERT_EQ(NS_OK, rv) << "ReadData() should not fail";
+
+  const nsTArray<ServiceWorkerRegistrationData>& data = swr->TestGetData();
+  ASSERT_EQ((uint32_t)2, data.Length()) << "2 entries should be found";
+
+  const mozilla::ipc::PrincipalInfo& info0 = data[0].principal();
+  ASSERT_EQ(info0.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo0 = data[0].principal();
+
+  nsAutoCString suffix0;
+  cInfo0.attrs().CreateSuffix(suffix0);
+
+  ASSERT_STREQ("^inBrowser=1", suffix0.get());
+  ASSERT_STREQ("https://scope_0.org", cInfo0.spec().get());
+  ASSERT_STREQ("https://scope_0.org", data[0].scope().get());
+  ASSERT_STREQ("currentWorkerURL 0", data[0].currentWorkerURL().get());
+  ASSERT_EQ(true, data[0].currentWorkerHandlesFetch());
+  ASSERT_STREQ("cacheName 0", NS_ConvertUTF16toUTF8(data[0].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+            data[0].updateViaCache());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)0, data[0].lastUpdateTime());
+
+  const mozilla::ipc::PrincipalInfo& info1 = data[1].principal();
+  ASSERT_EQ(info1.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo1 = data[1].principal();
+
+  nsAutoCString suffix1;
+  cInfo1.attrs().CreateSuffix(suffix1);
+
+  ASSERT_STREQ("", suffix1.get());
+  ASSERT_STREQ("https://scope_1.org", cInfo1.spec().get());
+  ASSERT_STREQ("https://scope_1.org", data[1].scope().get());
+  ASSERT_STREQ("currentWorkerURL 1", data[1].currentWorkerURL().get());
+  ASSERT_EQ(true, data[1].currentWorkerHandlesFetch());
+  ASSERT_STREQ("cacheName 1", NS_ConvertUTF16toUTF8(data[1].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+            data[1].updateViaCache());
+  ASSERT_EQ((int64_t)0, data[1].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)0, data[1].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)0, data[1].lastUpdateTime());
+}
+
+TEST(ServiceWorkerRegistrar, TestVersion4Migration)
+{
+  nsAutoCString buffer(
+      "4"
+      "\n");
+
+  buffer.AppendLiteral("^appId=123&inBrowser=1\n");
+  buffer.AppendLiteral(
+      "https://scope_0.org\ncurrentWorkerURL 0\ncacheName 0\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  buffer.AppendLiteral("\n");
+  buffer.AppendLiteral(
+      "https://scope_1.org\ncurrentWorkerURL 1\ncacheName 1\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  ASSERT_TRUE(CreateFile(buffer))
+  << "CreateFile should not fail";
+
+  RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+  nsresult rv = swr->TestReadData();
+  ASSERT_EQ(NS_OK, rv) << "ReadData() should not fail";
+
+  const nsTArray<ServiceWorkerRegistrationData>& data = swr->TestGetData();
+  ASSERT_EQ((uint32_t)2, data.Length()) << "2 entries should be found";
+
+  const mozilla::ipc::PrincipalInfo& info0 = data[0].principal();
+  ASSERT_EQ(info0.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo0 = data[0].principal();
+
+  nsAutoCString suffix0;
+  cInfo0.attrs().CreateSuffix(suffix0);
+
+  ASSERT_STREQ("^inBrowser=1", suffix0.get());
+  ASSERT_STREQ("https://scope_0.org", cInfo0.spec().get());
+  ASSERT_STREQ("https://scope_0.org", data[0].scope().get());
+  ASSERT_STREQ("currentWorkerURL 0", data[0].currentWorkerURL().get());
+  // default is true
+  ASSERT_EQ(true, data[0].currentWorkerHandlesFetch());
+  ASSERT_STREQ("cacheName 0", NS_ConvertUTF16toUTF8(data[0].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+            data[0].updateViaCache());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)0, data[0].lastUpdateTime());
+
+  const mozilla::ipc::PrincipalInfo& info1 = data[1].principal();
+  ASSERT_EQ(info1.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo1 = data[1].principal();
+
+  nsAutoCString suffix1;
+  cInfo1.attrs().CreateSuffix(suffix1);
+
+  ASSERT_STREQ("", suffix1.get());
+  ASSERT_STREQ("https://scope_1.org", cInfo1.spec().get());
+  ASSERT_STREQ("https://scope_1.org", data[1].scope().get());
+  ASSERT_STREQ("currentWorkerURL 1", data[1].currentWorkerURL().get());
+  // default is true
+  ASSERT_EQ(true, data[1].currentWorkerHandlesFetch());
+  ASSERT_STREQ("cacheName 1", NS_ConvertUTF16toUTF8(data[1].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+            data[1].updateViaCache());
+  ASSERT_EQ((int64_t)0, data[1].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)0, data[1].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)0, data[1].lastUpdateTime());
+}
+
+TEST(ServiceWorkerRegistrar, TestVersion5Migration)
+{
+  nsAutoCString buffer(
+      "5"
+      "\n");
+
+  buffer.AppendLiteral("^appId=123&inBrowser=1\n");
+  buffer.AppendLiteral("https://scope_0.org\ncurrentWorkerURL 0\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TRUE "\n");
+  buffer.AppendLiteral("cacheName 0\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  buffer.AppendLiteral("\n");
+  buffer.AppendLiteral("https://scope_1.org\ncurrentWorkerURL 1\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_FALSE "\n");
+  buffer.AppendLiteral("cacheName 1\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  ASSERT_TRUE(CreateFile(buffer))
+  << "CreateFile should not fail";
+
+  RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+  nsresult rv = swr->TestReadData();
+  ASSERT_EQ(NS_OK, rv) << "ReadData() should not fail";
+
+  const nsTArray<ServiceWorkerRegistrationData>& data = swr->TestGetData();
+  ASSERT_EQ((uint32_t)2, data.Length()) << "2 entries should be found";
+
+  const mozilla::ipc::PrincipalInfo& info0 = data[0].principal();
+  ASSERT_EQ(info0.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo0 = data[0].principal();
+
+  nsAutoCString suffix0;
+  cInfo0.attrs().CreateSuffix(suffix0);
+
+  ASSERT_STREQ("^inBrowser=1", suffix0.get());
+  ASSERT_STREQ("https://scope_0.org", cInfo0.spec().get());
+  ASSERT_STREQ("https://scope_0.org", data[0].scope().get());
+  ASSERT_STREQ("currentWorkerURL 0", data[0].currentWorkerURL().get());
+  ASSERT_TRUE(data[0].currentWorkerHandlesFetch());
+  ASSERT_STREQ("cacheName 0", NS_ConvertUTF16toUTF8(data[0].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+            data[0].updateViaCache());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)0, data[0].lastUpdateTime());
+
+  const mozilla::ipc::PrincipalInfo& info1 = data[1].principal();
+  ASSERT_EQ(info1.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo1 = data[1].principal();
+
+  nsAutoCString suffix1;
+  cInfo1.attrs().CreateSuffix(suffix1);
+
+  ASSERT_STREQ("", suffix1.get());
+  ASSERT_STREQ("https://scope_1.org", cInfo1.spec().get());
+  ASSERT_STREQ("https://scope_1.org", data[1].scope().get());
+  ASSERT_STREQ("currentWorkerURL 1", data[1].currentWorkerURL().get());
+  ASSERT_FALSE(data[1].currentWorkerHandlesFetch());
+  ASSERT_STREQ("cacheName 1", NS_ConvertUTF16toUTF8(data[1].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+            data[1].updateViaCache());
+  ASSERT_EQ((int64_t)0, data[1].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)0, data[1].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)0, data[1].lastUpdateTime());
+}
+
+TEST(ServiceWorkerRegistrar, TestVersion6Migration)
+{
+  nsAutoCString buffer(
+      "6"
+      "\n");
+
+  buffer.AppendLiteral("^appId=123&inBrowser=1\n");
+  buffer.AppendLiteral("https://scope_0.org\ncurrentWorkerURL 0\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TRUE "\n");
+  buffer.AppendLiteral("cacheName 0\n");
+  buffer.AppendInt(nsIRequest::LOAD_NORMAL, 16);
+  buffer.AppendLiteral("\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  buffer.AppendLiteral("\n");
+  buffer.AppendLiteral("https://scope_1.org\ncurrentWorkerURL 1\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_FALSE "\n");
+  buffer.AppendLiteral("cacheName 1\n");
+  buffer.AppendInt(nsIRequest::VALIDATE_ALWAYS, 16);
+  buffer.AppendLiteral("\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  ASSERT_TRUE(CreateFile(buffer))
+  << "CreateFile should not fail";
+
+  RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+  nsresult rv = swr->TestReadData();
+  ASSERT_EQ(NS_OK, rv) << "ReadData() should not fail";
+
+  const nsTArray<ServiceWorkerRegistrationData>& data = swr->TestGetData();
+  ASSERT_EQ((uint32_t)2, data.Length()) << "2 entries should be found";
+
+  const mozilla::ipc::PrincipalInfo& info0 = data[0].principal();
+  ASSERT_EQ(info0.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo0 = data[0].principal();
+
+  nsAutoCString suffix0;
+  cInfo0.attrs().CreateSuffix(suffix0);
+
+  ASSERT_STREQ("^inBrowser=1", suffix0.get());
+  ASSERT_STREQ("https://scope_0.org", cInfo0.spec().get());
+  ASSERT_STREQ("https://scope_0.org", data[0].scope().get());
+  ASSERT_STREQ("currentWorkerURL 0", data[0].currentWorkerURL().get());
+  ASSERT_TRUE(data[0].currentWorkerHandlesFetch());
+  ASSERT_STREQ("cacheName 0", NS_ConvertUTF16toUTF8(data[0].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_ALL,
+            data[0].updateViaCache());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)0, data[0].lastUpdateTime());
+
+  const mozilla::ipc::PrincipalInfo& info1 = data[1].principal();
+  ASSERT_EQ(info1.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo1 = data[1].principal();
+
+  nsAutoCString suffix1;
+  cInfo1.attrs().CreateSuffix(suffix1);
+
+  ASSERT_STREQ("", suffix1.get());
+  ASSERT_STREQ("https://scope_1.org", cInfo1.spec().get());
+  ASSERT_STREQ("https://scope_1.org", data[1].scope().get());
+  ASSERT_STREQ("currentWorkerURL 1", data[1].currentWorkerURL().get());
+  ASSERT_FALSE(data[1].currentWorkerHandlesFetch());
+  ASSERT_STREQ("cacheName 1", NS_ConvertUTF16toUTF8(data[1].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+            data[1].updateViaCache());
+  ASSERT_EQ((int64_t)0, data[1].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)0, data[1].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)0, data[1].lastUpdateTime());
+}
+
+TEST(ServiceWorkerRegistrar, TestVersion7Migration)
+{
+  nsAutoCString buffer(
+      "7"
+      "\n");
+
+  buffer.AppendLiteral("^appId=123&inBrowser=1\n");
+  buffer.AppendLiteral("https://scope_0.org\ncurrentWorkerURL 0\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TRUE "\n");
+  buffer.AppendLiteral("cacheName 0\n");
+  buffer.AppendInt(nsIRequest::LOAD_NORMAL, 16);
+  buffer.AppendLiteral("\n");
+  buffer.AppendInt(0);
+  buffer.AppendLiteral("\n");
+  buffer.AppendInt(0);
+  buffer.AppendLiteral("\n");
+  buffer.AppendInt(0);
+  buffer.AppendLiteral("\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  buffer.AppendLiteral("\n");
+  buffer.AppendLiteral("https://scope_1.org\ncurrentWorkerURL 1\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_FALSE "\n");
+  buffer.AppendLiteral("cacheName 1\n");
+  buffer.AppendInt(nsIRequest::VALIDATE_ALWAYS, 16);
+  buffer.AppendLiteral("\n");
+  PRTime ts = PR_Now();
+  buffer.AppendInt(ts);
+  buffer.AppendLiteral("\n");
+  buffer.AppendInt(ts);
+  buffer.AppendLiteral("\n");
+  buffer.AppendInt(ts);
+  buffer.AppendLiteral("\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  ASSERT_TRUE(CreateFile(buffer))
+  << "CreateFile should not fail";
+
+  RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+  nsresult rv = swr->TestReadData();
+  ASSERT_EQ(NS_OK, rv) << "ReadData() should not fail";
+
+  const nsTArray<ServiceWorkerRegistrationData>& data = swr->TestGetData();
+  ASSERT_EQ((uint32_t)2, data.Length()) << "2 entries should be found";
+
+  const mozilla::ipc::PrincipalInfo& info0 = data[0].principal();
+  ASSERT_EQ(info0.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo0 = data[0].principal();
+
+  nsAutoCString suffix0;
+  cInfo0.attrs().CreateSuffix(suffix0);
+
+  ASSERT_STREQ("^inBrowser=1", suffix0.get());
+  ASSERT_STREQ("https://scope_0.org", cInfo0.spec().get());
+  ASSERT_STREQ("https://scope_0.org", data[0].scope().get());
+  ASSERT_STREQ("currentWorkerURL 0", data[0].currentWorkerURL().get());
+  ASSERT_TRUE(data[0].currentWorkerHandlesFetch());
+  ASSERT_STREQ("cacheName 0", NS_ConvertUTF16toUTF8(data[0].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_ALL,
+            data[0].updateViaCache());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)0, data[0].lastUpdateTime());
+
+  const mozilla::ipc::PrincipalInfo& info1 = data[1].principal();
+  ASSERT_EQ(info1.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo1 = data[1].principal();
+
+  nsAutoCString suffix1;
+  cInfo1.attrs().CreateSuffix(suffix1);
+
+  ASSERT_STREQ("", suffix1.get());
+  ASSERT_STREQ("https://scope_1.org", cInfo1.spec().get());
+  ASSERT_STREQ("https://scope_1.org", data[1].scope().get());
+  ASSERT_STREQ("currentWorkerURL 1", data[1].currentWorkerURL().get());
+  ASSERT_FALSE(data[1].currentWorkerHandlesFetch());
+  ASSERT_STREQ("cacheName 1", NS_ConvertUTF16toUTF8(data[1].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+            data[1].updateViaCache());
+  ASSERT_EQ((int64_t)ts, data[1].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)ts, data[1].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)ts, data[1].lastUpdateTime());
+}
+
+TEST(ServiceWorkerRegistrar, TestDedupeRead)
+{
+  nsAutoCString buffer(
+      "3"
+      "\n");
+
+  // unique entries
+  buffer.AppendLiteral("^inBrowser=1\n");
+  buffer.AppendLiteral(
+      "spec 0\nhttps://scope_0.org\ncurrentWorkerURL 0\ncacheName 0\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  buffer.AppendLiteral("\n");
+  buffer.AppendLiteral(
+      "spec 1\nhttps://scope_1.org\ncurrentWorkerURL 1\ncacheName 1\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  // dupe entries
+  buffer.AppendLiteral("^inBrowser=1\n");
+  buffer.AppendLiteral(
+      "spec 1\nhttps://scope_0.org\ncurrentWorkerURL 0\ncacheName 0\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  buffer.AppendLiteral("^inBrowser=1\n");
+  buffer.AppendLiteral(
+      "spec 2\nhttps://scope_0.org\ncurrentWorkerURL 0\ncacheName 0\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  buffer.AppendLiteral("\n");
+  buffer.AppendLiteral(
+      "spec 3\nhttps://scope_1.org\ncurrentWorkerURL 1\ncacheName 1\n");
+  buffer.AppendLiteral(SERVICEWORKERREGISTRAR_TERMINATOR "\n");
+
+  ASSERT_TRUE(CreateFile(buffer))
+  << "CreateFile should not fail";
+
+  RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+  nsresult rv = swr->TestReadData();
+  ASSERT_EQ(NS_OK, rv) << "ReadData() should not fail";
+
+  const nsTArray<ServiceWorkerRegistrationData>& data = swr->TestGetData();
+  ASSERT_EQ((uint32_t)2, data.Length()) << "2 entries should be found";
+
+  const mozilla::ipc::PrincipalInfo& info0 = data[0].principal();
+  ASSERT_EQ(info0.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo0 = data[0].principal();
+
+  nsAutoCString suffix0;
+  cInfo0.attrs().CreateSuffix(suffix0);
+
+  ASSERT_STREQ("^inBrowser=1", suffix0.get());
+  ASSERT_STREQ("https://scope_0.org", cInfo0.spec().get());
+  ASSERT_STREQ("https://scope_0.org", data[0].scope().get());
+  ASSERT_STREQ("currentWorkerURL 0", data[0].currentWorkerURL().get());
+  ASSERT_EQ(true, data[0].currentWorkerHandlesFetch());
+  ASSERT_STREQ("cacheName 0", NS_ConvertUTF16toUTF8(data[0].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+            data[0].updateViaCache());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)0, data[0].lastUpdateTime());
+
+  const mozilla::ipc::PrincipalInfo& info1 = data[1].principal();
+  ASSERT_EQ(info1.type(), mozilla::ipc::PrincipalInfo::TContentPrincipalInfo)
+      << "First principal must be content";
+  const mozilla::ipc::ContentPrincipalInfo& cInfo1 = data[1].principal();
+
+  nsAutoCString suffix1;
+  cInfo1.attrs().CreateSuffix(suffix1);
+
+  ASSERT_STREQ("", suffix1.get());
+  ASSERT_STREQ("https://scope_1.org", cInfo1.spec().get());
+  ASSERT_STREQ("https://scope_1.org", data[1].scope().get());
+  ASSERT_STREQ("currentWorkerURL 1", data[1].currentWorkerURL().get());
+  ASSERT_EQ(true, data[1].currentWorkerHandlesFetch());
+  ASSERT_STREQ("cacheName 1", NS_ConvertUTF16toUTF8(data[1].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+            data[1].updateViaCache());
+  ASSERT_EQ((int64_t)0, data[1].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)0, data[1].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)0, data[1].lastUpdateTime());
+}
+
+TEST(ServiceWorkerRegistrar, TestDedupeWrite)
+{
+  {
+    RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+    for (int i = 0; i < 2; ++i) {
+      ServiceWorkerRegistrationData reg;
+
+      reg.scope() = "https://scope_write.dedupe"_ns;
+      reg.currentWorkerURL() = nsPrintfCString("currentWorkerURL write %d", i);
+      reg.currentWorkerHandlesFetch() = true;
+      reg.cacheName() =
+          NS_ConvertUTF8toUTF16(nsPrintfCString("cacheName write %d", i));
+      reg.updateViaCache() =
+          nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS;
+
+      nsAutoCString spec;
+      spec.AppendPrintf("spec write dedupe/%d", i);
+
+      reg.principal() = mozilla::ipc::ContentPrincipalInfo(
+          mozilla::OriginAttributes(false), spec, spec, mozilla::Nothing(),
+          spec);
+
+      swr->TestRegisterServiceWorker(reg);
+    }
+
+    nsresult rv = swr->TestWriteData();
+    ASSERT_EQ(NS_OK, rv) << "WriteData() should not fail";
+  }
+
+  RefPtr<ServiceWorkerRegistrarTest> swr = new ServiceWorkerRegistrarTest;
+
+  nsresult rv = swr->TestReadData();
+  ASSERT_EQ(NS_OK, rv) << "ReadData() should not fail";
+
+  // Duplicate entries should be removed.
+  const nsTArray<ServiceWorkerRegistrationData>& data = swr->TestGetData();
+  ASSERT_EQ((uint32_t)1, data.Length()) << "1 entry should be found";
+
+  ASSERT_EQ(data[0].principal().type(),
+            mozilla::ipc::PrincipalInfo::TContentPrincipalInfo);
+  const mozilla::ipc::ContentPrincipalInfo& cInfo = data[0].principal();
+
+  mozilla::OriginAttributes attrs(false);
+  nsAutoCString suffix, expectSuffix;
+  attrs.CreateSuffix(expectSuffix);
+  cInfo.attrs().CreateSuffix(suffix);
+
+  // Last entry passed to RegisterServiceWorkerInternal() should overwrite
+  // previous values.  So expect "1" in values here.
+  ASSERT_STREQ(expectSuffix.get(), suffix.get());
+  ASSERT_STREQ("https://scope_write.dedupe", cInfo.spec().get());
+  ASSERT_STREQ("https://scope_write.dedupe", data[0].scope().get());
+  ASSERT_STREQ("currentWorkerURL write 1", data[0].currentWorkerURL().get());
+  ASSERT_EQ(true, data[0].currentWorkerHandlesFetch());
+  ASSERT_STREQ("cacheName write 1",
+               NS_ConvertUTF16toUTF8(data[0].cacheName()).get());
+  ASSERT_EQ(nsIServiceWorkerRegistrationInfo::UPDATE_VIA_CACHE_IMPORTS,
+            data[0].updateViaCache());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerInstalledTime());
+  ASSERT_EQ((int64_t)0, data[0].currentWorkerActivatedTime());
+  ASSERT_EQ((int64_t)0, data[0].lastUpdateTime());
+}
+
+int main(int argc, char** argv) {
+  ::testing::InitGoogleTest(&argc, argv);
+
+  int rv = RUN_ALL_TESTS();
+  return rv;
+}
diff --git a/dom/serviceworkers/test/gtest/moz.build b/dom/serviceworkers/test/gtest/moz.build
new file mode 100644
index 0000000000..99e2945332
--- /dev/null
+++ b/dom/serviceworkers/test/gtest/moz.build
@@ -0,0 +1,13 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, you can obtain one at http://mozilla.org/MPL/2.0/.
+
+UNIFIED_SOURCES = [
+    "TestReadWrite.cpp",
+]
+
+include("/ipc/chromium/chromium-config.mozbuild")
+
+FINAL_LIBRARY = "xul-gtest"
diff --git a/dom/serviceworkers/test/gzip_redirect_worker.js b/dom/serviceworkers/test/gzip_redirect_worker.js
new file mode 100644
index 0000000000..dcee4b3b18
--- /dev/null
+++ b/dom/serviceworkers/test/gzip_redirect_worker.js
@@ -0,0 +1,15 @@
+self.addEventListener("fetch", function (event) {
+  if (!event.request.url.endsWith("sw_clients/does_not_exist.html")) {
+    return;
+  }
+
+  event.respondWith(
+    new Response("", {
+      status: 301,
+      statusText: "Moved Permanently",
+      headers: {
+        Location: "refresher_compressed.html",
+      },
+    })
+  );
+});
diff --git a/dom/serviceworkers/test/header_checker.sjs b/dom/serviceworkers/test/header_checker.sjs
new file mode 100644
index 0000000000..7061041039
--- /dev/null
+++ b/dom/serviceworkers/test/header_checker.sjs
@@ -0,0 +1,9 @@
+function handleRequest(request, response) {
+  if (request.getHeader("Service-Worker") === "script") {
+    response.setStatusLine("1.1", 200, "OK");
+    response.setHeader("Content-Type", "text/javascript");
+    response.write("// empty");
+  } else {
+    response.setStatusLine("1.1", 404, "Not Found");
+  }
+}
diff --git a/dom/serviceworkers/test/hello.html b/dom/serviceworkers/test/hello.html
new file mode 100644
index 0000000000..97eb03c902
--- /dev/null
+++ b/dom/serviceworkers/test/hello.html
@@ -0,0 +1,9 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+  </head>
+  <body>
+    Hello.
+  </body>
+<html>
diff --git a/dom/serviceworkers/test/importscript.sjs b/dom/serviceworkers/test/importscript.sjs
new file mode 100644
index 0000000000..e075eadd87
--- /dev/null
+++ b/dom/serviceworkers/test/importscript.sjs
@@ -0,0 +1,11 @@
+function handleRequest(request, response) {
+  if (request.queryString == "clearcounter") {
+    setState("counter", "");
+  } else if (!getState("counter")) {
+    response.setHeader("Content-Type", "application/javascript", false);
+    response.write("callByScript();");
+    setState("counter", "1");
+  } else {
+    response.write("no cache no party!");
+  }
+}
diff --git a/dom/serviceworkers/test/importscript_worker.js b/dom/serviceworkers/test/importscript_worker.js
new file mode 100644
index 0000000000..2ade477f63
--- /dev/null
+++ b/dom/serviceworkers/test/importscript_worker.js
@@ -0,0 +1,46 @@
+var counter = 0;
+function callByScript() {
+  ++counter;
+}
+
+// Use multiple scripts in this load to verify we support that case correctly.
+// See bug 1249351 for a case where we broke this.
+importScripts("lorem_script.js", "importscript.sjs");
+
+importScripts("importscript.sjs");
+
+var missingScriptFailed = false;
+try {
+  importScripts(["there-is-nothing-here.js"]);
+} catch (e) {
+  missingScriptFailed = true;
+}
+
+onmessage = function (e) {
+  self.clients.matchAll().then(function (res) {
+    if (!res.length) {
+      dump("ERROR: no clients are currently controlled.\n");
+    }
+
+    if (!missingScriptFailed) {
+      res[0].postMessage("KO");
+    }
+
+    try {
+      // new unique script should fail
+      importScripts(["importscript.sjs?unique=true"]);
+      res[0].postMessage("KO");
+      return;
+    } catch (ex) {}
+
+    try {
+      // duplicate script previously offlined should succeed
+      importScripts(["importscript.sjs"]);
+    } catch (ex) {
+      res[0].postMessage("KO");
+      return;
+    }
+
+    res[0].postMessage(counter == 3 ? "OK" : "KO");
+  });
+};
diff --git a/dom/serviceworkers/test/install_event_error_worker.js b/dom/serviceworkers/test/install_event_error_worker.js
new file mode 100644
index 0000000000..abcceb6b69
--- /dev/null
+++ b/dom/serviceworkers/test/install_event_error_worker.js
@@ -0,0 +1,9 @@
+// Worker that errors on receiving an install event.
+oninstall = function (e) {
+  e.waitUntil(
+    new Promise(function (resolve, reject) {
+      undefined.doSomething;
+      resolve();
+    })
+  );
+};
diff --git a/dom/serviceworkers/test/install_event_worker.js b/dom/serviceworkers/test/install_event_worker.js
new file mode 100644
index 0000000000..3001575189
--- /dev/null
+++ b/dom/serviceworkers/test/install_event_worker.js
@@ -0,0 +1,3 @@
+oninstall = function (e) {
+  dump("Got install event\n");
+};
diff --git a/dom/serviceworkers/test/intercepted_channel_process_swap_worker.js b/dom/serviceworkers/test/intercepted_channel_process_swap_worker.js
new file mode 100644
index 0000000000..ccc74bc895
--- /dev/null
+++ b/dom/serviceworkers/test/intercepted_channel_process_swap_worker.js
@@ -0,0 +1,7 @@
+onfetch = e => {
+  const url = new URL(e.request.url).searchParams.get("respondWith");
+
+  if (url) {
+    e.respondWith(fetch(url));
+  }
+};
diff --git a/dom/serviceworkers/test/isolated/README.md b/dom/serviceworkers/test/isolated/README.md
new file mode 100644
index 0000000000..2b462385af
--- /dev/null
+++ b/dom/serviceworkers/test/isolated/README.md
@@ -0,0 +1,19 @@
+This directory contains tests that are flaky when run with other tests
+but that we don't want to disable and where it's not trivial to make
+the tests not flaky at this time, but we have a plan to fix them via
+systemic fixes that are improving the codebase rather than hacking a
+test until it works.
+
+This directory and ugly hack structure needs to exist because of
+multi-e10s propagation races that will go away when we finish
+implementing the multi-e10s overhaul for ServiceWorkers.  Most
+specifically, unregister() calls need to propagate across all
+content processes.  There are fixes on bug 1318142, but they're
+ugly and complicate things.
+
+Specific test notes and rationalizations:
+- multi-e10s-update: This test relies on there being no registrations
+  existing at its start.  The preceding test that induces the breakage
+  (`browser_force_refresh.js`) was made to clean itself up, but the
+  unregister() race issue is not easily/cleanly hacked around and this
+  test will itself become moot when the multi-e10s changes land.
diff --git a/dom/serviceworkers/test/isolated/multi-e10s-update/browser.ini b/dom/serviceworkers/test/isolated/multi-e10s-update/browser.ini
new file mode 100644
index 0000000000..bb913e2583
--- /dev/null
+++ b/dom/serviceworkers/test/isolated/multi-e10s-update/browser.ini
@@ -0,0 +1,7 @@
+[DEFAULT]
+support-files =
+  file_multie10s_update.html
+  server_multie10s_update.sjs
+
+[browser_multie10s_update.js]
+skip-if = true # bug 1429794 is to re-enable
diff --git a/dom/serviceworkers/test/isolated/multi-e10s-update/browser_multie10s_update.js b/dom/serviceworkers/test/isolated/multi-e10s-update/browser_multie10s_update.js
new file mode 100644
index 0000000000..457d47863c
--- /dev/null
+++ b/dom/serviceworkers/test/isolated/multi-e10s-update/browser_multie10s_update.js
@@ -0,0 +1,147 @@
+"use strict";
+
+// Testing if 2 child processes are correctly managed when they both try to do
+// an SW update.
+
+const BASE_URI =
+  "http://mochi.test:8888/browser/dom/serviceworkers/test/isolated/multi-e10s-update/";
+
+add_task(async function test_update() {
+  info("Setting the prefs to having multi-e10s enabled");
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["dom.ipc.processCount", 4],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ],
+  });
+
+  let url = BASE_URI + "file_multie10s_update.html";
+
+  info("Creating the first tab...");
+  let tab1 = BrowserTestUtils.addTab(gBrowser, url);
+  let browser1 = gBrowser.getBrowserForTab(tab1);
+  await BrowserTestUtils.browserLoaded(browser1);
+
+  info("Creating the second tab...");
+  let tab2 = BrowserTestUtils.addTab(gBrowser, url);
+  let browser2 = gBrowser.getBrowserForTab(tab2);
+  await BrowserTestUtils.browserLoaded(browser2);
+
+  let sw = BASE_URI + "server_multie10s_update.sjs";
+
+  info("Let's make sure there are no existing registrations...");
+  let existingCount = await SpecialPowers.spawn(
+    browser1,
+    [],
+    async function () {
+      const regs = await content.navigator.serviceWorker.getRegistrations();
+      return regs.length;
+    }
+  );
+  is(existingCount, 0, "Previous tests should have cleaned up!");
+
+  info("Let's start the test...");
+  /* eslint-disable no-shadow */
+  let status = await SpecialPowers.spawn(browser1, [sw], function (url) {
+    // Let the SW be served immediately once by triggering a relase immediately.
+    // We don't need to await this.  We do this from a frame script because
+    // it has fetch.
+    content.fetch(url + "?release");
+
+    // Registration of the SW
+    return (
+      content.navigator.serviceWorker
+        .register(url)
+
+        // Activation
+        .then(function (r) {
+          content.registration = r;
+          return new content.window.Promise(resolve => {
+            let worker = r.installing;
+            worker.addEventListener("statechange", () => {
+              if (worker.state === "installed") {
+                resolve(true);
+              }
+            });
+          });
+        })
+
+        // Waiting for the result.
+        .then(() => {
+          return new content.window.Promise(resolveResults => {
+            // Once both updates have been issued and a single update has failed, we
+            // can tell the .sjs to release a single copy of the SW script.
+            let updateCount = 0;
+            const uc = new content.window.BroadcastChannel("update");
+            // This promise tracks the updates tally.
+            const updatesIssued = new Promise(resolveUpdatesIssued => {
+              uc.onmessage = function (e) {
+                updateCount++;
+                console.log("got update() number", updateCount);
+                if (updateCount === 2) {
+                  resolveUpdatesIssued();
+                }
+              };
+            });
+
+            let results = [];
+            const rc = new content.window.BroadcastChannel("result");
+            // This promise resolves when an update has failed.
+            const oneFailed = new Promise(resolveOneFailed => {
+              rc.onmessage = function (e) {
+                console.log("got result", e.data);
+                results.push(e.data);
+                if (e.data === 1) {
+                  resolveOneFailed();
+                }
+                if (results.length != 2) {
+                  return;
+                }
+
+                resolveResults(results[0] + results[1]);
+              };
+            });
+
+            Promise.all([updatesIssued, oneFailed]).then(() => {
+              console.log("releasing update");
+              content.fetch(url + "?release").catch(ex => {
+                console.error("problem releasing:", ex);
+              });
+            });
+
+            // Let's inform the tabs.
+            const sc = new content.window.BroadcastChannel("start");
+            sc.postMessage("go");
+          });
+        })
+    );
+  });
+  /* eslint-enable no-shadow */
+
+  if (status == 0) {
+    ok(false, "both succeeded. This is wrong.");
+  } else if (status == 1) {
+    ok(true, "one succeded, one failed. This is good.");
+  } else {
+    ok(false, "both failed. This is definitely wrong.");
+  }
+
+  // let's clean up the registration and get the fetch count.  The count
+  // should be 1 for the initial fetch and 1 for the update.
+  /* eslint-disable no-shadow */
+  const count = await SpecialPowers.spawn(browser1, [sw], async function (url) {
+    // We stored the registration on the frame script's wrapper, hence directly
+    // accesss content without using wrappedJSObject.
+    await content.registration.unregister();
+    const { count } = await content
+      .fetch(url + "?get-and-clear-count")
+      .then(r => r.json());
+    return count;
+  });
+  /* eslint-enable no-shadow */
+  is(count, 2, "SW should have been fetched only twice");
+
+  BrowserTestUtils.removeTab(tab1);
+  BrowserTestUtils.removeTab(tab2);
+});
diff --git a/dom/serviceworkers/test/isolated/multi-e10s-update/file_multie10s_update.html b/dom/serviceworkers/test/isolated/multi-e10s-update/file_multie10s_update.html
new file mode 100644
index 0000000000..d611b01b59
--- /dev/null
+++ b/dom/serviceworkers/test/isolated/multi-e10s-update/file_multie10s_update.html
@@ -0,0 +1,40 @@
+<html>
+<body>
+<script>
+
+var bc = new BroadcastChannel('start');
+bc.onmessage = function(e) {
+  // This message is not for us.
+  if (e.data != 'go') {
+    return;
+  }
+
+  // It can happen that we don't have the registrations yet. Let's try with a
+  // timeout.
+  function proceed() {
+    return navigator.serviceWorker.getRegistrations().then(regs => {
+      if (!regs.length) {
+        setTimeout(proceed, 200);
+        return;
+      }
+
+      bc = new BroadcastChannel('result');
+      regs[0].update().then(() => {
+        bc.postMessage(0);
+      }, () => {
+        bc.postMessage(1);
+      });
+
+      // Tell the coordinating frame script that we've kicked off our update
+      // call so that the SW script can be released once both instances of us
+      // have triggered update() and 1 has failed.
+      const blockingChannel = new BroadcastChannel('update');
+      blockingChannel.postMessage(true);
+    });
+  }
+
+  proceed();
+}
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/isolated/multi-e10s-update/server_multie10s_update.sjs b/dom/serviceworkers/test/isolated/multi-e10s-update/server_multie10s_update.sjs
new file mode 100644
index 0000000000..5bf48be29e
--- /dev/null
+++ b/dom/serviceworkers/test/isolated/multi-e10s-update/server_multie10s_update.sjs
@@ -0,0 +1,100 @@
+// stolen from file_blocked_script.sjs
+function setGlobalState(data, key) {
+  x = {
+    data,
+    QueryInterface(iid) {
+      return this;
+    },
+  };
+  x.wrappedJSObject = x;
+  setObjectState(key, x);
+}
+
+function getGlobalState(key) {
+  var data;
+  getObjectState(key, function (x) {
+    data = x && x.wrappedJSObject.data;
+  });
+  return data;
+}
+
+function completeBlockingRequest(response) {
+  response.write("42");
+  response.finish();
+}
+
+// This stores the response that's currently blocking, or true if the release
+// got here before the blocking request.
+const BLOCKING_KEY = "multie10s-update-release";
+// This tracks the number of blocking requests we received up to this point in
+// time.  This value will be cleared when fetched.  It's on the caller to make
+// sure that all the blocking requests that might occurr have already occurred.
+const COUNT_KEY = "multie10s-update-count";
+
+/**
+ * Serve a request that will only be completed when the ?release variant of this
+ * .sjs is fetched.  This allows us to avoid using a timer, which slows down the
+ * tests and is brittle under slow hardware.
+ */
+function handleBlockingRequest(request, response) {
+  response.processAsync();
+  response.setHeader("Content-Type", "application/javascript", false);
+
+  const existingCount = getGlobalState(COUNT_KEY) || 0;
+  setGlobalState(existingCount + 1, COUNT_KEY);
+
+  const alreadyReleased = getGlobalState(BLOCKING_KEY);
+  if (alreadyReleased === true) {
+    completeBlockingRequest(response);
+    setGlobalState(null, BLOCKING_KEY);
+  } else if (alreadyReleased) {
+    // If we've got another response stacked up, this means something is wrong
+    // with the test.  The count mechanism will detect this, so just let this
+    // one through so we fail fast rather than hanging.
+    dump("we got multiple blocking requests stacked up!!\n");
+    completeBlockingRequest(response);
+  } else {
+    setGlobalState(response, BLOCKING_KEY);
+  }
+}
+
+function handleReleaseRequest(request, response) {
+  const blockingResponse = getGlobalState(BLOCKING_KEY);
+  if (blockingResponse) {
+    completeBlockingRequest(blockingResponse);
+    setGlobalState(null, BLOCKING_KEY);
+  } else {
+    setGlobalState(true, BLOCKING_KEY);
+  }
+
+  response.setHeader("Content-Type", "application/json", false);
+  response.write(JSON.stringify({ released: true }));
+}
+
+function handleCountRequest(request, response) {
+  const count = getGlobalState(COUNT_KEY) || 0;
+  // --verify requires that we clear this so the test can be re-run.
+  setGlobalState(0, COUNT_KEY);
+
+  response.setHeader("Content-Type", "application/json", false);
+  response.write(JSON.stringify({ count }));
+}
+
+Components.utils.importGlobalProperties(["URLSearchParams"]);
+function handleRequest(request, response) {
+  dump(
+    "server_multie10s_update.sjs: processing request for " +
+      request.path +
+      "?" +
+      request.queryString +
+      "\n"
+  );
+  const query = new URLSearchParams(request.queryString);
+  if (query.has("release")) {
+    handleReleaseRequest(request, response);
+  } else if (query.has("get-and-clear-count")) {
+    handleCountRequest(request, response);
+  } else {
+    handleBlockingRequest(request, response);
+  }
+}
diff --git a/dom/serviceworkers/test/lazy_worker.js b/dom/serviceworkers/test/lazy_worker.js
new file mode 100644
index 0000000000..6f8681d25c
--- /dev/null
+++ b/dom/serviceworkers/test/lazy_worker.js
@@ -0,0 +1,8 @@
+onactivate = function (event) {
+  var promise = new Promise(function (res) {
+    setTimeout(function () {
+      res();
+    }, 500);
+  });
+  event.waitUntil(promise);
+};
diff --git a/dom/serviceworkers/test/lorem_script.js b/dom/serviceworkers/test/lorem_script.js
new file mode 100644
index 0000000000..bc8f3c8085
--- /dev/null
+++ b/dom/serviceworkers/test/lorem_script.js
@@ -0,0 +1,8 @@
+var lorem_str = `
+Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
+incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis
+nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
+consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum
+dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident,
+sunt in culpa qui officia deserunt mollit anim id est laborum.
+`;
diff --git a/dom/serviceworkers/test/match_all_advanced_worker.js b/dom/serviceworkers/test/match_all_advanced_worker.js
new file mode 100644
index 0000000000..7aa623161a
--- /dev/null
+++ b/dom/serviceworkers/test/match_all_advanced_worker.js
@@ -0,0 +1,5 @@
+onmessage = function (e) {
+  self.clients.matchAll().then(function (clients) {
+    e.source.postMessage(clients.length);
+  });
+};
diff --git a/dom/serviceworkers/test/match_all_client/match_all_client_id.html b/dom/serviceworkers/test/match_all_client/match_all_client_id.html
new file mode 100644
index 0000000000..7ac6fc9d05
--- /dev/null
+++ b/dom/serviceworkers/test/match_all_client/match_all_client_id.html
@@ -0,0 +1,31 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1139425 - controlled page</title>
+<script class="testbody" type="text/javascript">
+  var testWindow = parent;
+  if (opener) {
+    testWindow = opener;
+  }
+
+  window.onload = function() {
+    navigator.serviceWorker.ready.then(function(swr) {
+        swr.active.postMessage("Start");
+    });
+  }
+
+  navigator.serviceWorker.onmessage = function(msg) {
+    // worker message;
+    testWindow.postMessage(msg.data, "*");
+    window.close();
+  };
+</script>
+
+</head>
+<body>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/match_all_client_id_worker.js b/dom/serviceworkers/test/match_all_client_id_worker.js
new file mode 100644
index 0000000000..607eec97d4
--- /dev/null
+++ b/dom/serviceworkers/test/match_all_client_id_worker.js
@@ -0,0 +1,28 @@
+onmessage = function (e) {
+  dump("MatchAllClientIdWorker:" + e.data + "\n");
+  var id = [];
+  var iterations = 5;
+  var counter = 0;
+
+  for (var i = 0; i < iterations; i++) {
+    self.clients.matchAll().then(function (res) {
+      if (!res.length) {
+        dump("ERROR: no clients are currently controlled.\n");
+      }
+
+      client = res[0];
+      id[counter] = client.id;
+      counter++;
+      if (counter >= iterations) {
+        var response = true;
+        for (var index = 1; index < iterations; index++) {
+          if (id[0] != id[index]) {
+            response = false;
+            break;
+          }
+        }
+        client.postMessage(response);
+      }
+    });
+  }
+};
diff --git a/dom/serviceworkers/test/match_all_clients/match_all_controlled.html b/dom/serviceworkers/test/match_all_clients/match_all_controlled.html
new file mode 100644
index 0000000000..35f064815d
--- /dev/null
+++ b/dom/serviceworkers/test/match_all_clients/match_all_controlled.html
@@ -0,0 +1,83 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1058311 - controlled page</title>
+<script class="testbody" type="text/javascript">
+  var re = /^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$/;
+  var frameType = "none";
+  var testWindow = parent;
+
+  if (parent != window) {
+    frameType = "nested";
+  } else if (opener) {
+    frameType = "auxiliary";
+    testWindow = opener;
+  } else if (parent == window) {
+    frameType = "top-level";
+  } else {
+    postResult(false, "Unexpected frameType");
+  }
+
+  window.onload = function() {
+    navigator.serviceWorker.ready.then(function(swr) {
+        // Send a message to our SW that will cause it to do clients.matchAll()
+        // and send a message *to each client about themselves* (rather than
+        // replying directly to us with all the clients it finds).
+        swr.active.postMessage("Start");
+    });
+  }
+
+  function postResult(result, msg) {
+    response = {
+      result,
+      message: msg
+    };
+
+    testWindow.postMessage(response, "*");
+  }
+
+  navigator.serviceWorker.onmessage = async function(msg) {
+    // ## Verify the contents of the SW's serialized rep of our client info.
+    // Clients are opaque identifiers at a spec level, but we want to verify
+    // that they are UUID's *without wrapping "{}" characters*.
+    result = re.test(msg.data.id);
+    postResult(result, "Client id test");
+
+    result = msg.data.url == window.location;
+    postResult(result, "Client url test");
+
+    result = msg.data.visibilityState === document.visibilityState;
+    postResult(result, "Client visibility test. expected=" +document.visibilityState);
+
+    result = msg.data.focused === document.hasFocus();
+    postResult(result, "Client focus test. expected=" + document.hasFocus());
+
+    result = msg.data.frameType === frameType;
+    postResult(result, "Client frameType test. expected=" + frameType);
+
+    result = msg.data.type === "window";
+    postResult(result, "Client type test. expected=window");
+
+    // ## Verify the FetchEvent.clientId
+    // In bug 1446225 it turned out we provided UUID's wrapped with {}'s.  We
+    // now also get coverage by forcing our clients.get() to forbid UUIDs
+    // with that form.
+
+    const clientIdResp = await fetch('clientId');
+    const fetchClientId = await clientIdResp.text();
+    result = re.test(fetchClientId);
+    postResult(result, "Fetch clientId test");
+
+    postResult(true, "DONE");
+    window.close();
+  };
+</script>
+
+</head>
+<body>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/match_all_properties_worker.js b/dom/serviceworkers/test/match_all_properties_worker.js
new file mode 100644
index 0000000000..dd8cb2f2aa
--- /dev/null
+++ b/dom/serviceworkers/test/match_all_properties_worker.js
@@ -0,0 +1,28 @@
+onfetch = function (e) {
+  if (/\/clientId$/.test(e.request.url)) {
+    e.respondWith(new Response(e.clientId));
+    return;
+  }
+};
+
+onmessage = function (e) {
+  dump("MatchAllPropertiesWorker:" + e.data + "\n");
+  self.clients.matchAll().then(function (res) {
+    if (!res.length) {
+      dump("ERROR: no clients are currently controlled.\n");
+    }
+
+    for (i = 0; i < res.length; i++) {
+      client = res[i];
+      response = {
+        type: client.type,
+        id: client.id,
+        url: client.url,
+        visibilityState: client.visibilityState,
+        focused: client.focused,
+        frameType: client.frameType,
+      };
+      client.postMessage(response);
+    }
+  });
+};
diff --git a/dom/serviceworkers/test/match_all_worker.js b/dom/serviceworkers/test/match_all_worker.js
new file mode 100644
index 0000000000..99b11c850d
--- /dev/null
+++ b/dom/serviceworkers/test/match_all_worker.js
@@ -0,0 +1,10 @@
+function loop() {
+  self.clients.matchAll().then(function (result) {
+    setTimeout(loop, 0);
+  });
+}
+
+onactivate = function (e) {
+  // spam matchAll until the worker is closed.
+  loop();
+};
diff --git a/dom/serviceworkers/test/message_posting_worker.js b/dom/serviceworkers/test/message_posting_worker.js
new file mode 100644
index 0000000000..5fcd0a741e
--- /dev/null
+++ b/dom/serviceworkers/test/message_posting_worker.js
@@ -0,0 +1,8 @@
+onmessage = function (e) {
+  self.clients.matchAll().then(function (res) {
+    if (!res.length) {
+      dump("ERROR: no clients are currently controlled.\n");
+    }
+    res[0].postMessage(e.data);
+  });
+};
diff --git a/dom/serviceworkers/test/message_receiver.html b/dom/serviceworkers/test/message_receiver.html
new file mode 100644
index 0000000000..82cb587c72
--- /dev/null
+++ b/dom/serviceworkers/test/message_receiver.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<script>
+  navigator.serviceWorker.onmessage = function(e) {
+    window.parent.postMessage(e.data, "*");
+  };
+</script>
diff --git a/dom/serviceworkers/test/mochitest-common.ini b/dom/serviceworkers/test/mochitest-common.ini
new file mode 100644
index 0000000000..377c36e825
--- /dev/null
+++ b/dom/serviceworkers/test/mochitest-common.ini
@@ -0,0 +1,377 @@
+[DEFAULT]
+tags = condprof
+support-files =
+  abrupt_completion_worker.js
+  worker.js
+  worker2.js
+  worker3.js
+  fetch_event_worker.js
+  parse_error_worker.js
+  activate_event_error_worker.js
+  install_event_worker.js
+  install_event_error_worker.js
+  simpleregister/index.html
+  simpleregister/ready.html
+  controller/index.html
+  unregister/index.html
+  unregister/unregister.html
+  workerUpdate/update.html
+  sw_clients/simple.html
+  sw_clients/service_worker_controlled.html
+  match_all_worker.js
+  match_all_advanced_worker.js
+  worker_unregister.js
+  worker_update.js
+  message_posting_worker.js
+  fetch/index.html
+  fetch/fetch_worker_script.js
+  fetch/fetch_tests.js
+  fetch/deliver-gzip.sjs
+  fetch/redirect.sjs
+  fetch/real-file.txt
+  fetch/cookie/cookie_test.js
+  fetch/cookie/register.html
+  fetch/cookie/unregister.html
+  fetch/hsts/hsts_test.js
+  fetch/hsts/embedder.html
+  fetch/hsts/image.html
+  fetch/hsts/image-20px.png
+  fetch/hsts/image-40px.png
+  fetch/hsts/realindex.html
+  fetch/hsts/register.html
+  fetch/hsts/register.html^headers^
+  fetch/hsts/unregister.html
+  fetch/https/index.html
+  fetch/https/register.html
+  fetch/https/unregister.html
+  fetch/https/https_test.js
+  fetch/https/clonedresponse/index.html
+  fetch/https/clonedresponse/register.html
+  fetch/https/clonedresponse/unregister.html
+  fetch/https/clonedresponse/https_test.js
+  fetch/imagecache/image-20px.png
+  fetch/imagecache/image-40px.png
+  fetch/imagecache/imagecache_test.js
+  fetch/imagecache/index.html
+  fetch/imagecache/postmortem.html
+  fetch/imagecache/register.html
+  fetch/imagecache/unregister.html
+  fetch/imagecache-maxage/index.html
+  fetch/imagecache-maxage/image-20px.png
+  fetch/imagecache-maxage/image-40px.png
+  fetch/imagecache-maxage/maxage_test.js
+  fetch/imagecache-maxage/register.html
+  fetch/imagecache-maxage/unregister.html
+  fetch/importscript-mixedcontent/register.html
+  fetch/importscript-mixedcontent/unregister.html
+  fetch/importscript-mixedcontent/https_test.js
+  fetch/interrupt.sjs
+  fetch/origin/index.sjs
+  fetch/origin/index-to-https.sjs
+  fetch/origin/realindex.html
+  fetch/origin/realindex.html^headers^
+  fetch/origin/register.html
+  fetch/origin/unregister.html
+  fetch/origin/origin_test.js
+  fetch/origin/https/index-https.sjs
+  fetch/origin/https/realindex.html
+  fetch/origin/https/realindex.html^headers^
+  fetch/origin/https/register.html
+  fetch/origin/https/unregister.html
+  fetch/origin/https/origin_test.js
+  fetch/requesturl/index.html
+  fetch/requesturl/redirect.sjs
+  fetch/requesturl/redirector.html
+  fetch/requesturl/register.html
+  fetch/requesturl/requesturl_test.js
+  fetch/requesturl/secret.html
+  fetch/requesturl/unregister.html
+  fetch/sandbox/index.html
+  fetch/sandbox/intercepted_index.html
+  fetch/sandbox/register.html
+  fetch/sandbox/unregister.html
+  fetch/sandbox/sandbox_test.js
+  fetch/upgrade-insecure/upgrade-insecure_test.js
+  fetch/upgrade-insecure/embedder.html
+  fetch/upgrade-insecure/embedder.html^headers^
+  fetch/upgrade-insecure/image.html
+  fetch/upgrade-insecure/image-20px.png
+  fetch/upgrade-insecure/image-40px.png
+  fetch/upgrade-insecure/realindex.html
+  fetch/upgrade-insecure/register.html
+  fetch/upgrade-insecure/unregister.html
+  match_all_properties_worker.js
+  match_all_clients/match_all_controlled.html
+  test_serviceworker_interfaces.js
+  serviceworker_wrapper.js
+  message_receiver.html
+  serviceworker_not_sharedworker.js
+  match_all_client/match_all_client_id.html
+  match_all_client_id_worker.js
+  source_message_posting_worker.js
+  scope/scope_worker.js
+  redirect_serviceworker.sjs
+  importscript.sjs
+  importscript_worker.js
+  bug1151916_worker.js
+  bug1151916_driver.html
+  bug1240436_worker.js
+  notificationclick.html
+  notificationclick-otherwindow.html
+  notificationclick.js
+  notificationclick_focus.html
+  notificationclick_focus.js
+  notificationclose.html
+  notificationclose.js
+  worker_updatefoundevent.js
+  worker_updatefoundevent2.js
+  updatefoundevent.html
+  empty.html
+  empty.js
+  notification_constructor_error.js
+  notification_get_sw.js
+  notification/register.html
+  sanitize/frame.html
+  sanitize/register.html
+  sanitize/example_check_and_unregister.html
+  sanitize_worker.js
+  streamfilter_server.sjs
+  streamfilter_worker.js
+  swa/worker_scope_different.js
+  swa/worker_scope_different.js^headers^
+  swa/worker_scope_different2.js
+  swa/worker_scope_different2.js^headers^
+  swa/worker_scope_precise.js
+  swa/worker_scope_precise.js^headers^
+  swa/worker_scope_too_deep.js
+  swa/worker_scope_too_deep.js^headers^
+  swa/worker_scope_too_narrow.js
+  swa/worker_scope_too_narrow.js^headers^
+  claim_oninstall_worker.js
+  claim_worker_1.js
+  claim_worker_2.js
+  claim_clients/client.html
+  force_refresh_worker.js
+  sw_clients/refresher.html
+  sw_clients/refresher_compressed.html
+  sw_clients/refresher_compressed.html^headers^
+  sw_clients/refresher_cached.html
+  sw_clients/refresher_cached_compressed.html
+  sw_clients/refresher_cached_compressed.html^headers^
+  strict_mode_warning.js
+  skip_waiting_installed_worker.js
+  skip_waiting_scope/index.html
+  thirdparty/iframe1.html
+  thirdparty/iframe2.html
+  thirdparty/register.html
+  thirdparty/unregister.html
+  thirdparty/sw.js
+  thirdparty/worker.js
+  register_https.html
+  gzip_redirect_worker.js
+  sw_clients/navigator.html
+  eval_worker.js
+  test_eval_allowed.html^headers^
+  opaque_intercept_worker.js
+  notify_loaded.js
+  fetch/plugin/worker.js
+  fetch/plugin/plugins.html
+  eventsource/*
+  sw_clients/file_blob_upload_frame.html
+  redirect_post.sjs
+  xslt_worker.js
+  xslt/*
+  unresolved_fetch_worker.js
+  header_checker.sjs
+  openWindow_worker.js
+  redirect.sjs
+  open_window/client.sjs
+  lorem_script.js
+  file_blob_response_worker.js
+  file_js_cache_cleanup.js
+  file_js_cache.html
+  file_js_cache_with_sri.html
+  file_js_cache.js
+  file_js_cache_save_after_load.html
+  file_js_cache_save_after_load.js
+  file_js_cache_syntax_error.html
+  file_js_cache_syntax_error.js
+  !/dom/security/test/cors/file_CrossSiteXHR_server.sjs
+  !/dom/notification/test/mochitest/MockServices.js
+  !/dom/notification/test/mochitest/NotificationTest.js
+  blocking_install_event_worker.js
+  sw_bad_mime_type.js
+  sw_bad_mime_type.js^headers^
+  error_reporting_helpers.js
+  fetch.js
+  hello.html
+  create_another_sharedWorker.html
+  sharedWorker_fetch.js
+  async_waituntil_worker.js
+  lazy_worker.js
+  nofetch_handler_worker.js
+  service_worker.js
+  service_worker_client.html
+  utils.js
+  sw_storage_not_allow.js
+  update_worker.sjs
+  self_update_worker.sjs
+  !/dom/events/test/event_leak_utils.js
+  onmessageerror_worker.js
+  pref/fetch_nonexistent_file.html
+  pref/intercept_nonexistent_file_sw.js
+
+[test_abrupt_completion.html]
+skip-if =
+  os == 'linux' #Bug 1615164
+  win10_2004 # Bug 1615164
+[test_async_waituntil.html]
+[test_bad_script_cache.html]
+[test_bug1151916.html]
+[test_bug1240436.html]
+[test_bug1408734.html]
+[test_claim.html]
+[test_claim_oninstall.html]
+[test_controller.html]
+[test_cross_origin_url_after_redirect.html]
+skip-if =
+  http3
+[test_devtools_bypass_serviceworker.html]
+[test_empty_serviceworker.html]
+[test_enabled_pref.html]
+[test_error_reporting.html]
+skip-if = serviceworker_e10s
+[test_escapedSlashes.html]
+skip-if =
+  http3
+[test_eval_allowed.html]
+[test_event_listener_leaks.html]
+skip-if = (os == "win" && processor == "aarch64") #bug 1535784
+[test_fetch_event.html]
+skip-if = debug # Bug 1262224
+[test_fetch_event_with_thirdpartypref.html]
+skip-if = debug # Bug 1262224
+[test_fetch_integrity.html]
+skip-if = serviceworker_e10s
+support-files = console_monitor.js
+[test_file_blob_response.html]
+[test_file_blob_upload.html]
+[test_file_upload.html]
+skip-if = toolkit == 'android' #Bug 1430182
+support-files = script_file_upload.js sw_file_upload.js server_file_upload.sjs
+[test_force_refresh.html]
+[test_gzip_redirect.html]
+[test_hsts_upgrade_intercept.html]
+skip-if =
+  win10_2004 && !debug # Bug 1717091
+  win11_2009 && !debug # Bug 1797751
+  os == "linux" && bits == 64 && debug # Bug 1749068
+  apple_catalina && !debug # Bug 1717091
+  fission && os == "android" # Bug 1827325
+scheme = https
+[test_imagecache.html]
+skip-if =
+  http3
+[test_imagecache_max_age.html]
+skip-if =
+  os == 'linux' && bits == 64 && !debug && asan && os_version == '18.04' # Bug 1585668
+  http3
+[test_importscript.html]
+[test_install_event.html]
+[test_install_event_gc.html]
+skip-if = xorigin # JavaScript error: http://mochi.xorigin-test:8888/tests/SimpleTest/TestRunner.js, line 157: SecurityError: Permission denied to access property "wrappedJSObject" on cross-origin object
+[test_installation_simple.html]
+[test_match_all.html]
+[test_match_all_advanced.html]
+[test_match_all_client_id.html]
+skip-if =
+  toolkit == 'android'
+  http3
+[test_match_all_client_properties.html]
+skip-if = toolkit == 'android'
+[test_navigationPreload_disable_crash.html]
+scheme = https
+skip-if =
+  os == "linux" && bits == 64 && debug # Bug 1749068
+[test_navigator.html]
+[test_nofetch_handler.html]
+[test_not_intercept_plugin.html]
+skip-if = serviceworker_e10s # leaks InterceptedHttpChannel and others things
+[test_notification_constructor_error.html]
+[test_notification_get.html]
+skip-if = xorigin # Bug 1792790
+[test_notification_openWindow.html]
+skip-if =
+  toolkit == 'android'  # Bug 1620052
+  xorigin  # JavaScript error: http://mochi.xorigin-test:8888/tests/SimpleTest/TestRunner.js, line 157: SecurityError: Permission denied to access property "wrappedJSObject" on cross-origin object
+  http3
+support-files = notification_openWindow_worker.js file_notification_openWindow.html
+tags = openwindow
+[test_notificationclick-otherwindow.html]
+skip-if = xorigin # Bug 1792790
+[test_notificationclick.html]
+skip-if = xorigin # Bug 1792790
+[test_notificationclick_focus.html]
+skip-if = xorigin # Bug 1792790
+[test_notificationclose.html]
+skip-if = xorigin # Bug 1792790
+[test_onmessageerror.html]
+skip-if = xorigin # Hangs with no error log
+[test_opaque_intercept.html]
+skip-if =
+  http3
+[test_origin_after_redirect.html]
+skip-if =
+  http3
+[test_origin_after_redirect_cached.html]
+skip-if =
+  http3
+[test_origin_after_redirect_to_https.html]
+[test_origin_after_redirect_to_https_cached.html]
+[test_post_message.html]
+[test_post_message_advanced.html]
+[test_post_message_source.html]
+[test_register_base.html]
+skip-if =
+  http3
+[test_register_https_in_http.html]
+skip-if =
+  http3
+[test_sandbox_intercept.html]
+skip-if =
+  http3
+[test_sanitize.html]
+[test_scopes.html]
+[test_script_loader_intercepted_js_cache.html]
+skip-if = serviceworker_e10s
+[test_self_update_worker.html]
+skip-if = serviceworker_e10s
+  toolkit == 'android'
+[test_service_worker_allowed.html]
+[test_serviceworker.html]
+[test_serviceworker_header.html]
+skip-if =
+  http3
+[test_serviceworker_interfaces.html]
+[test_serviceworker_not_sharedworker.html]
+skip-if =
+  http3
+[test_skip_waiting.html]
+[test_streamfilter.html]
+[test_strict_mode_warning.html]
+[test_third_party_iframes.html]
+skip-if =
+  fission && os == "android" # Bug 1827327
+support-files =
+  window_party_iframes.html
+[test_unregister.html]
+[test_unresolved_fetch_interception.html]
+skip-if = verify
+  serviceworker_e10s
+[test_workerUnregister.html]
+[test_workerUpdate.html]
+[test_worker_reference_gc_timeout.html]
+[test_workerupdatefoundevent.html]
+[test_xslt.html]
+skip-if =
+  http3
diff --git a/dom/serviceworkers/test/mochitest-dFPI.ini b/dom/serviceworkers/test/mochitest-dFPI.ini
new file mode 100644
index 0000000000..37d6171837
--- /dev/null
+++ b/dom/serviceworkers/test/mochitest-dFPI.ini
@@ -0,0 +1,11 @@
+[DEFAULT]
+# Enable dFPI(cookieBehavior 5) for service worker tests.
+prefs =
+  network.cookie.cookieBehavior=5
+tags = serviceworker-dfpi
+# We disable service workers for third-party contexts when dFPI is enabled. So,
+# we disable xorigin tests for dFPI.
+skip-if = xorigin
+dupe-manifest = true
+
+[include:mochitest-common.ini]
diff --git a/dom/serviceworkers/test/mochitest.ini b/dom/serviceworkers/test/mochitest.ini
new file mode 100644
index 0000000000..7c29dc57ee
--- /dev/null
+++ b/dom/serviceworkers/test/mochitest.ini
@@ -0,0 +1,39 @@
+[DEFAULT]
+# Mochitests are executed in iframes. Several ServiceWorker tests use iframes
+# too. The result is that we have nested iframes. CookieBehavior 4
+# (BEHAVIOR_REJECT_TRACKER) doesn't grant storage access permission to nested
+# iframes because trackers could use them to follow users across sites. Let's
+# use cookieBehavior 0 (BEHAVIOR_ACCEPT) here.
+prefs =
+  network.cookie.cookieBehavior=0
+dupe-manifest = true
+tags = condprof
+
+# Following tests are not working currently when dFPI is enabled. So, we put
+# these tests here instead of mochitest-common.ini so that these tests won't run
+# when dFPI is enabled.
+[test_cookie_fetch.html]
+[test_csp_upgrade-insecure_intercept.html]
+[test_eventsource_intercept.html]
+skip-if =
+  http3
+[test_https_fetch.html]
+skip-if = condprof  #: timed out
+[test_https_fetch_cloned_response.html]
+[test_https_origin_after_redirect.html]
+[test_https_origin_after_redirect_cached.html]
+skip-if = condprof  #: timed out
+[test_https_synth_fetch_from_cached_sw.html]
+[test_importscript_mixedcontent.html]
+tags = mcb
+[test_openWindow.html]
+skip-if =
+  toolkit == 'android' # Bug 1620052
+  xorigin # Bug 1792790
+  condprof  #: timed out
+  http3
+tags = openwindow
+[test_sanitize_domain.html]
+skip-if =
+  http3
+[include:mochitest-common.ini]
diff --git a/dom/serviceworkers/test/navigationPreload_page.html b/dom/serviceworkers/test/navigationPreload_page.html
new file mode 100644
index 0000000000..39d4a79378
--- /dev/null
+++ b/dom/serviceworkers/test/navigationPreload_page.html
@@ -0,0 +1 @@
+NavigationPreload
diff --git a/dom/serviceworkers/test/network_with_utils.html b/dom/serviceworkers/test/network_with_utils.html
new file mode 100644
index 0000000000..63f6b0e796
--- /dev/null
+++ b/dom/serviceworkers/test/network_with_utils.html
@@ -0,0 +1,14 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <script src="utils.js" type="text/javascript"></script>
+</head>
+<body>
+NETWORK
+</body>
+</html>
diff --git a/dom/serviceworkers/test/nofetch_handler_worker.js b/dom/serviceworkers/test/nofetch_handler_worker.js
new file mode 100644
index 0000000000..0e406b3761
--- /dev/null
+++ b/dom/serviceworkers/test/nofetch_handler_worker.js
@@ -0,0 +1,14 @@
+function handleFetch(event) {
+  event.respondWith(new Response("intercepted"));
+}
+
+self.oninstall = function (event) {
+  addEventListener("fetch", handleFetch);
+  self.onfetch = handleFetch;
+};
+
+// Bug 1325101. Make sure adding event listeners for other events
+// doesn't set the fetch flag.
+addEventListener("push", function () {});
+addEventListener("message", function () {});
+addEventListener("non-sw-event", function () {});
diff --git a/dom/serviceworkers/test/notification/register.html b/dom/serviceworkers/test/notification/register.html
new file mode 100644
index 0000000000..b7df73bede
--- /dev/null
+++ b/dom/serviceworkers/test/notification/register.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<script>
+  function done() {
+    parent.callback();
+  }
+
+  navigator.serviceWorker.ready.then(done);
+  navigator.serviceWorker.register("../notification_get_sw.js", {scope: "."}).catch(function(e) {
+    dump("Registration failure " + e.message + "\n");
+  });
+</script>
diff --git a/dom/serviceworkers/test/notification_constructor_error.js b/dom/serviceworkers/test/notification_constructor_error.js
new file mode 100644
index 0000000000..644dba480e
--- /dev/null
+++ b/dom/serviceworkers/test/notification_constructor_error.js
@@ -0,0 +1 @@
+new Notification("Hi there");
diff --git a/dom/serviceworkers/test/notification_get_sw.js b/dom/serviceworkers/test/notification_get_sw.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/dom/serviceworkers/test/notification_openWindow_worker.js b/dom/serviceworkers/test/notification_openWindow_worker.js
new file mode 100644
index 0000000000..890f70f795
--- /dev/null
+++ b/dom/serviceworkers/test/notification_openWindow_worker.js
@@ -0,0 +1,25 @@
+const gRoot = "http://mochi.test:8888/tests/dom/serviceworkers/test/";
+const gTestURL = gRoot + "test_notification_openWindow.html";
+const gClientURL = gRoot + "file_notification_openWindow.html";
+
+onmessage = function (event) {
+  if (event.data !== "DONE") {
+    dump(`ERROR: received unexpected message: ${JSON.stringify(event.data)}\n`);
+  }
+
+  event.waitUntil(
+    clients.matchAll({ includeUncontrolled: true }).then(cl => {
+      for (let client of cl) {
+        // The |gClientURL| window closes itself after posting the DONE message,
+        // so we don't need to send it anything here.
+        if (client.url === gTestURL) {
+          client.postMessage("DONE");
+        }
+      }
+    })
+  );
+};
+
+onnotificationclick = function (event) {
+  clients.openWindow(gClientURL);
+};
diff --git a/dom/serviceworkers/test/notificationclick-otherwindow.html b/dom/serviceworkers/test/notificationclick-otherwindow.html
new file mode 100644
index 0000000000..f64e82aabd
--- /dev/null
+++ b/dom/serviceworkers/test/notificationclick-otherwindow.html
@@ -0,0 +1,30 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1114554 - controlled page</title>
+<script class="testbody" type="text/javascript">
+  var testWindow = parent;
+  if (opener) {
+    testWindow = opener;
+  }
+
+  navigator.serviceWorker.ready.then(function(swr) {
+    var ifr = document.createElement("iframe");
+    document.documentElement.appendChild(ifr);
+    ifr.contentWindow.ServiceWorkerRegistration.prototype.showNotification
+       .call(swr, "Hi there. The ServiceWorker should receive a click event for this.", { data: { complex: ["jsval", 5] }});
+  });
+
+  navigator.serviceWorker.onmessage = function(msg) {
+    testWindow.callback(msg.data.result);
+  };
+</script>
+
+</head>
+<body>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/notificationclick.html b/dom/serviceworkers/test/notificationclick.html
new file mode 100644
index 0000000000..448764a1cb
--- /dev/null
+++ b/dom/serviceworkers/test/notificationclick.html
@@ -0,0 +1,27 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1114554 - controlled page</title>
+<script class="testbody" type="text/javascript">
+  var testWindow = parent;
+  if (opener) {
+    testWindow = opener;
+  }
+
+  navigator.serviceWorker.ready.then(function(swr) {
+    swr.showNotification("Hi there. The ServiceWorker should receive a click event for this.", { data: { complex: ["jsval", 5] }});
+  });
+
+  navigator.serviceWorker.onmessage = function(msg) {
+    testWindow.callback(msg.data.result);
+  };
+</script>
+
+</head>
+<body>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/notificationclick.js b/dom/serviceworkers/test/notificationclick.js
new file mode 100644
index 0000000000..ae776095c7
--- /dev/null
+++ b/dom/serviceworkers/test/notificationclick.js
@@ -0,0 +1,23 @@
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/publicdomain/zero/1.0/
+//
+onnotificationclick = function (e) {
+  self.clients.matchAll().then(function (clients) {
+    if (clients.length === 0) {
+      dump(
+        "********************* CLIENTS LIST EMPTY! Test will timeout! ***********************\n"
+      );
+      return;
+    }
+
+    clients.forEach(function (client) {
+      client.postMessage({
+        result:
+          e.notification.data &&
+          e.notification.data.complex &&
+          e.notification.data.complex[0] == "jsval" &&
+          e.notification.data.complex[1] == 5,
+      });
+    });
+  });
+};
diff --git a/dom/serviceworkers/test/notificationclick_focus.html b/dom/serviceworkers/test/notificationclick_focus.html
new file mode 100644
index 0000000000..0152d397f3
--- /dev/null
+++ b/dom/serviceworkers/test/notificationclick_focus.html
@@ -0,0 +1,28 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1144660 - controlled page</title>
+<script class="testbody" type="text/javascript">
+  var testWindow = parent;
+  if (opener) {
+    testWindow = opener;
+  }
+
+  navigator.serviceWorker.ready.then(function(swr) {
+    swr.showNotification("Hi there. The ServiceWorker should receive a click event for this.");
+  });
+
+  navigator.serviceWorker.onmessage = function(msg) {
+    dump("GOT Message " + JSON.stringify(msg.data) + "\n");
+    testWindow.callback(msg.data.ok);
+  };
+</script>
+
+</head>
+<body>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/notificationclick_focus.js b/dom/serviceworkers/test/notificationclick_focus.js
new file mode 100644
index 0000000000..1f0924560a
--- /dev/null
+++ b/dom/serviceworkers/test/notificationclick_focus.js
@@ -0,0 +1,49 @@
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/publicdomain/zero/1.0/
+//
+
+function promisifyTimerFocus(client, delay) {
+  return new Promise(function (resolve, reject) {
+    setTimeout(function () {
+      client.focus().then(resolve, reject);
+    }, delay);
+  });
+}
+
+onnotificationclick = function (e) {
+  e.waitUntil(
+    self.clients.matchAll().then(function (clients) {
+      if (clients.length === 0) {
+        dump(
+          "********************* CLIENTS LIST EMPTY! Test will timeout! ***********************\n"
+        );
+        return Promise.resolve();
+      }
+
+      var immediatePromise = clients[0].focus();
+      var withinTimeout = promisifyTimerFocus(clients[0], 100);
+
+      var afterTimeout = promisifyTimerFocus(clients[0], 2000).then(
+        function () {
+          throw "Should have failed!";
+        },
+        function () {
+          return Promise.resolve();
+        }
+      );
+
+      return Promise.all([immediatePromise, withinTimeout, afterTimeout])
+        .then(function () {
+          clients.forEach(function (client) {
+            client.postMessage({ ok: true });
+          });
+        })
+        .catch(function (ex) {
+          dump("Error " + ex + "\n");
+          clients.forEach(function (client) {
+            client.postMessage({ ok: false });
+          });
+        });
+    })
+  );
+};
diff --git a/dom/serviceworkers/test/notificationclose.html b/dom/serviceworkers/test/notificationclose.html
new file mode 100644
index 0000000000..f18801122e
--- /dev/null
+++ b/dom/serviceworkers/test/notificationclose.html
@@ -0,0 +1,37 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1265841 - controlled page</title>
+<script class="testbody" type="text/javascript">
+  var testWindow = parent;
+  if (opener) {
+    testWindow = opener;
+  }
+
+  navigator.serviceWorker.ready.then(function(swr) {
+    return swr.showNotification(
+      "Hi there. The ServiceWorker should receive a close event for this.",
+      { data: { complex: ["jsval", 5] }}).then(function() {
+        return swr;
+      });
+  }).then(function(swr) {
+    return swr.getNotifications();
+  }).then(function(notifications) {
+    notifications.forEach(function(notification) {
+      notification.close();
+    });
+  });
+
+  navigator.serviceWorker.onmessage = function(msg) {
+    testWindow.callback(msg.data);
+  };
+</script>
+
+</head>
+<body>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/notificationclose.js b/dom/serviceworkers/test/notificationclose.js
new file mode 100644
index 0000000000..17c135a308
--- /dev/null
+++ b/dom/serviceworkers/test/notificationclose.js
@@ -0,0 +1,31 @@
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/publicdomain/zero/1.0/
+//
+onnotificationclose = function (e) {
+  e.waitUntil(
+    (async function () {
+      let windowOpened = true;
+      await clients.openWindow("hello.html").catch(err => {
+        windowOpened = false;
+      });
+
+      self.clients.matchAll().then(function (clients) {
+        if (clients.length === 0) {
+          dump("*** CLIENTS LIST EMPTY! Test will timeout! ***\n");
+          return;
+        }
+
+        clients.forEach(function (client) {
+          client.postMessage({
+            result:
+              e.notification.data &&
+              e.notification.data.complex &&
+              e.notification.data.complex[0] == "jsval" &&
+              e.notification.data.complex[1] == 5,
+            windowOpened,
+          });
+        });
+      });
+    })()
+  );
+};
diff --git a/dom/serviceworkers/test/notify_loaded.js b/dom/serviceworkers/test/notify_loaded.js
new file mode 100644
index 0000000000..3bf001abd6
--- /dev/null
+++ b/dom/serviceworkers/test/notify_loaded.js
@@ -0,0 +1 @@
+parent.postMessage("SCRIPT_LOADED", "*");
diff --git a/dom/serviceworkers/test/onmessageerror_worker.js b/dom/serviceworkers/test/onmessageerror_worker.js
new file mode 100644
index 0000000000..15426128a6
--- /dev/null
+++ b/dom/serviceworkers/test/onmessageerror_worker.js
@@ -0,0 +1,54 @@
+async function getSwContainer() {
+  const clients = await self.clients.matchAll({
+    type: "window",
+    includeUncontrolled: true,
+  });
+
+  for (let client of clients) {
+    if (client.url.endsWith("test_onmessageerror.html")) {
+      return client;
+    }
+  }
+}
+
+self.addEventListener("message", async e => {
+  const config = e.data;
+  const swContainer = await getSwContainer();
+
+  if (config == "send-bad-message") {
+    const serializable = true;
+    const deserializable = false;
+
+    swContainer.postMessage(
+      new StructuredCloneTester(serializable, deserializable)
+    );
+
+    return;
+  }
+
+  if (!config.serializable) {
+    swContainer.postMessage({
+      result: "Error",
+      reason: "Service Worker received an unserializable object",
+    });
+
+    return;
+  }
+
+  if (!config.deserializable) {
+    swContainer.postMessage({
+      result: "Error",
+      reason:
+        "Service Worker received (and deserialized) an un-deserializable object",
+    });
+
+    return;
+  }
+
+  swContainer.postMessage({ received: "message" });
+});
+
+self.addEventListener("messageerror", async () => {
+  const swContainer = await getSwContainer();
+  swContainer.postMessage({ received: "messageerror" });
+});
diff --git a/dom/serviceworkers/test/opaque_intercept_worker.js b/dom/serviceworkers/test/opaque_intercept_worker.js
new file mode 100644
index 0000000000..8c0882ad11
--- /dev/null
+++ b/dom/serviceworkers/test/opaque_intercept_worker.js
@@ -0,0 +1,40 @@
+var name = "opaqueInterceptCache";
+
+// Cross origin request to ensure that an opaque response is used
+var prefix = "http://example.com/tests/dom/serviceworkers/test/";
+
+var testReady = new Promise(resolve => {
+  self.addEventListener(
+    "message",
+    m => {
+      resolve();
+    },
+    { once: true }
+  );
+});
+
+self.addEventListener("install", function (event) {
+  var request = new Request(prefix + "notify_loaded.js", { mode: "no-cors" });
+  event.waitUntil(
+    Promise.all([caches.open(name), fetch(request), testReady]).then(function (
+      results
+    ) {
+      var cache = results[0];
+      var response = results[1];
+      return cache.put("./sw_clients/does_not_exist.js", response);
+    })
+  );
+});
+
+self.addEventListener("fetch", function (event) {
+  event.respondWith(
+    caches
+      .open(name)
+      .then(function (cache) {
+        return cache.match(event.request);
+      })
+      .then(function (response) {
+        return response || fetch(event.request);
+      })
+  );
+});
diff --git a/dom/serviceworkers/test/openWindow_worker.js b/dom/serviceworkers/test/openWindow_worker.js
new file mode 100644
index 0000000000..ffaad009be
--- /dev/null
+++ b/dom/serviceworkers/test/openWindow_worker.js
@@ -0,0 +1,178 @@
+// the worker won't shut down between events because we increased
+// the timeout values.
+var client;
+var window_count = 0;
+var expected_window_count = 9;
+var isolated_window_count = 0;
+var expected_isolated_window_count = 2;
+var resolve_got_all_windows = null;
+var got_all_windows = new Promise(function (res, rej) {
+  resolve_got_all_windows = res;
+});
+
+// |expected_window_count| needs to be updated for every new call that's
+// expected to actually open a new window regardless of what |clients.openWindow|
+// returns.
+function testForUrl(url, throwType, clientProperties, resultsArray) {
+  return clients
+    .openWindow(url)
+    .then(function (e) {
+      if (throwType != null) {
+        resultsArray.push({
+          result: false,
+          message: "openWindow should throw " + throwType,
+        });
+      } else if (clientProperties) {
+        resultsArray.push({
+          result: e instanceof WindowClient,
+          message: `openWindow should resolve to a WindowClient for url ${url}, got ${e}`,
+        });
+        resultsArray.push({
+          result: e.url == clientProperties.url,
+          message: "Client url should be " + clientProperties.url,
+        });
+        // Add more properties
+      } else {
+        resultsArray.push({
+          result: e == null,
+          message: "Open window should resolve to null. Got: " + e,
+        });
+      }
+    })
+    .catch(function (err) {
+      if (throwType == null) {
+        resultsArray.push({
+          result: false,
+          message: "Unexpected throw: " + err,
+        });
+      } else {
+        resultsArray.push({
+          result: err.toString().includes(throwType),
+          message: "openWindow should throw: " + err,
+        });
+      }
+    });
+}
+
+onmessage = function (event) {
+  if (event.data == "testNoPopup") {
+    client = event.source;
+
+    var results = [];
+    var promises = [];
+    promises.push(testForUrl("about:blank", "TypeError", null, results));
+    promises.push(
+      testForUrl("http://example.com", "InvalidAccessError", null, results)
+    );
+    promises.push(
+      testForUrl("_._*`InvalidURL", "InvalidAccessError", null, results)
+    );
+    event.waitUntil(
+      Promise.all(promises).then(function (e) {
+        client.postMessage(results);
+      })
+    );
+  }
+
+  if (event.data == "NEW_WINDOW" || event.data == "NEW_ISOLATED_WINDOW") {
+    window_count += 1;
+    if (event.data == "NEW_ISOLATED_WINDOW") {
+      isolated_window_count += 1;
+    }
+    if (window_count == expected_window_count) {
+      resolve_got_all_windows();
+    }
+  }
+
+  if (event.data == "CHECK_NUMBER_OF_WINDOWS") {
+    event.waitUntil(
+      got_all_windows
+        .then(function () {
+          return clients.matchAll();
+        })
+        .then(function (cl) {
+          event.source.postMessage([
+            {
+              result: cl.length == expected_window_count,
+              message: `The number of windows is correct. ${cl.length} == ${expected_window_count}`,
+            },
+            {
+              result: isolated_window_count == expected_isolated_window_count,
+              message: `The number of isolated windows is correct. ${isolated_window_count} == ${expected_isolated_window_count}`,
+            },
+          ]);
+          for (i = 0; i < cl.length; i++) {
+            cl[i].postMessage("CLOSE");
+          }
+        })
+    );
+  }
+};
+
+onnotificationclick = function (e) {
+  var results = [];
+  var promises = [];
+
+  var redirect =
+    "http://mochi.test:8888/tests/dom/serviceworkers/test/redirect.sjs?";
+  var redirect_xorigin =
+    "http://example.com/tests/dom/serviceworkers/test/redirect.sjs?";
+  var same_origin =
+    "http://mochi.test:8888/tests/dom/serviceworkers/test/open_window/client.sjs";
+  var different_origin =
+    "http://example.com/tests/dom/serviceworkers/test/open_window/client.sjs";
+
+  promises.push(testForUrl("about:blank", "TypeError", null, results));
+  promises.push(testForUrl(different_origin, null, null, results));
+  promises.push(testForUrl(same_origin, null, { url: same_origin }, results));
+  promises.push(
+    testForUrl("open_window/client.sjs", null, { url: same_origin }, results)
+  );
+
+  // redirect tests
+  promises.push(
+    testForUrl(
+      redirect + "open_window/client.sjs",
+      null,
+      { url: same_origin },
+      results
+    )
+  );
+  promises.push(testForUrl(redirect + different_origin, null, null, results));
+
+  promises.push(
+    testForUrl(redirect_xorigin + "open_window/client.sjs", null, null, results)
+  );
+  promises.push(
+    testForUrl(
+      redirect_xorigin + same_origin,
+      null,
+      { url: same_origin },
+      results
+    )
+  );
+
+  // coop+coep tests
+  promises.push(
+    testForUrl(
+      same_origin + "?crossOriginIsolated=true",
+      null,
+      { url: same_origin + "?crossOriginIsolated=true" },
+      results
+    )
+  );
+  promises.push(
+    testForUrl(
+      different_origin + "?crossOriginIsolated=true",
+      null,
+      null,
+      results
+    )
+  );
+
+  e.waitUntil(
+    Promise.all(promises).then(function () {
+      client.postMessage(results);
+    })
+  );
+};
diff --git a/dom/serviceworkers/test/open_window/client.sjs b/dom/serviceworkers/test/open_window/client.sjs
new file mode 100644
index 0000000000..236a4a1226
--- /dev/null
+++ b/dom/serviceworkers/test/open_window/client.sjs
@@ -0,0 +1,69 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const RESPONSE = `
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1172870 - page opened by ServiceWorkerClients.OpenWindow</title>
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<h1>client.sjs</h1>
+<script class="testbody" type="text/javascript">
+
+  window.onload = function() {
+    if (document.domain === "mochi.test") {
+      navigator.serviceWorker.ready.then(function(result) {
+        navigator.serviceWorker.onmessage = function(event) {
+          if (event.data !== "CLOSE") {
+            dump("ERROR: unexepected reply from the service worker.\\n");
+          }
+          if (parent) {
+            parent.postMessage("CLOSE", "*");
+          }
+          window.close();
+        }
+
+        let message = window.crossOriginIsolated ? "NEW_ISOLATED_WINDOW" : "NEW_WINDOW";
+        navigator.serviceWorker.controller.postMessage(message);
+      })
+    } else {
+      window.onmessage = function(event) {
+        if (event.data !== "CLOSE") {
+            dump("ERROR: unexepected reply from the iframe.\\n");
+        }
+        window.close();
+      }
+
+      var iframe = document.createElement('iframe');
+      iframe.src = "http://mochi.test:8888/tests/dom/serviceworkers/test/open_window/client.sjs";
+      document.body.appendChild(iframe);
+    }
+  }
+
+</script>
+</pre>
+</body>
+</html>
+`;
+
+function handleRequest(request, response) {
+  Components.utils.importGlobalProperties(["URLSearchParams"]);
+  let query = new URLSearchParams(request.queryString);
+
+  // If the request has been marked to be isolated with COOP+COEP, set the appropriate headers.
+  if (query.get("crossOriginIsolated") == "true") {
+    response.setHeader("Cross-Origin-Opener-Policy", "same-origin", false);
+  }
+
+  // Always set the COEP and CORP headers, so that this document can be framed
+  // by a document which has also set COEP to require-corp.
+  response.setHeader("Cross-Origin-Embedder-Policy", "require-corp", false);
+  response.setHeader("Cross-Origin-Resource-Policy", "cross-origin", false);
+
+  response.setHeader("Content-Type", "text/html", false);
+  response.write(RESPONSE);
+}
diff --git a/dom/serviceworkers/test/page_post_controlled.html b/dom/serviceworkers/test/page_post_controlled.html
new file mode 100644
index 0000000000..27694c0027
--- /dev/null
+++ b/dom/serviceworkers/test/page_post_controlled.html
@@ -0,0 +1,27 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+</head>
+<body>
+<script type="text/javascript">
+  window.parent.postMessage({
+    controlled: !!navigator.serviceWorker.controller
+  }, "*");
+
+  addEventListener("message", e => {
+    if (e.data == "create nested iframe") {
+      const iframe = document.createElement('iframe');
+      document.body.appendChild(iframe);
+      iframe.src = location.href;
+    } else {
+      window.parent.postMessage(e.data, "*");
+    }
+  });
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/parse_error_worker.js b/dom/serviceworkers/test/parse_error_worker.js
new file mode 100644
index 0000000000..b6a8ef0a1a
--- /dev/null
+++ b/dom/serviceworkers/test/parse_error_worker.js
@@ -0,0 +1,2 @@
+// intentional parse error.
+var foo = {;
diff --git a/dom/serviceworkers/test/pref/fetch_nonexistent_file.html b/dom/serviceworkers/test/pref/fetch_nonexistent_file.html
new file mode 100644
index 0000000000..84c3a1398d
--- /dev/null
+++ b/dom/serviceworkers/test/pref/fetch_nonexistent_file.html
@@ -0,0 +1,15 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+<script>
+
+  async function fetch_status() {
+    let response = await fetch('this_file_does_not_exist.txt');
+    return response.status;
+  }
+
+</script>
+</head>
+<body>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/pref/intercept_nonexistent_file_sw.js b/dom/serviceworkers/test/pref/intercept_nonexistent_file_sw.js
new file mode 100644
index 0000000000..ab0f1d572d
--- /dev/null
+++ b/dom/serviceworkers/test/pref/intercept_nonexistent_file_sw.js
@@ -0,0 +1,5 @@
+onfetch = function (e) {
+  if (e.request.url.match(/this_file_does_not_exist.txt$/)) {
+    e.respondWith(new Response("intercepted"));
+  }
+};
diff --git a/dom/serviceworkers/test/redirect.sjs b/dom/serviceworkers/test/redirect.sjs
new file mode 100644
index 0000000000..43fec90b5a
--- /dev/null
+++ b/dom/serviceworkers/test/redirect.sjs
@@ -0,0 +1,4 @@
+function handleRequest(request, response) {
+  response.setStatusLine(request.httpVersion, 301, "Moved Permanently");
+  response.setHeader("Location", request.queryString, false);
+}
diff --git a/dom/serviceworkers/test/redirect_post.sjs b/dom/serviceworkers/test/redirect_post.sjs
new file mode 100644
index 0000000000..5483138d2b
--- /dev/null
+++ b/dom/serviceworkers/test/redirect_post.sjs
@@ -0,0 +1,39 @@
+const CC = Components.Constructor;
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
+
+function handleRequest(request, response) {
+  var query = {};
+  request.queryString.split("&").forEach(function (val) {
+    var [name, value] = val.split("=");
+    query[name] = unescape(value);
+  });
+
+  var bodyStream = new BinaryInputStream(request.bodyInputStream);
+  var bodyBytes = [];
+  while ((bodyAvail = bodyStream.available()) > 0) {
+    Array.prototype.push.apply(bodyBytes, bodyStream.readByteArray(bodyAvail));
+  }
+
+  var body = decodeURIComponent(
+    escape(String.fromCharCode.apply(null, bodyBytes))
+  );
+
+  var currentHop = query.hop ? parseInt(query.hop) : 0;
+
+  var obj = JSON.parse(body);
+  if (currentHop < obj.hops) {
+    var newURL =
+      "/tests/dom/serviceworkers/test/redirect_post.sjs?hop=" +
+      (1 + currentHop);
+    response.setStatusLine(null, 307, "redirect");
+    response.setHeader("Location", newURL);
+    return;
+  }
+
+  response.setHeader("Content-Type", "application/json");
+  response.write(body);
+}
diff --git a/dom/serviceworkers/test/redirect_serviceworker.sjs b/dom/serviceworkers/test/redirect_serviceworker.sjs
new file mode 100644
index 0000000000..858e6d4824
--- /dev/null
+++ b/dom/serviceworkers/test/redirect_serviceworker.sjs
@@ -0,0 +1,7 @@
+function handleRequest(request, response) {
+  response.setStatusLine("1.1", 302, "Found");
+  response.setHeader(
+    "Location",
+    "http://mochi.test:8888/tests/dom/serviceworkers/test/worker.js"
+  );
+}
diff --git a/dom/serviceworkers/test/register_https.html b/dom/serviceworkers/test/register_https.html
new file mode 100644
index 0000000000..572c7ce6b8
--- /dev/null
+++ b/dom/serviceworkers/test/register_https.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<script>
+function ok(condition, message) {
+  parent.postMessage({type: "ok", status: condition, msg: message}, "*");
+}
+
+function done() {
+  parent.postMessage({type: "done"}, "*");
+}
+
+ok(location.protocol == "https:", "We should be loaded from HTTPS");
+ok(!window.isSecureContext, "Should not be secure context");
+ok(!("serviceWorker" in navigator), "ServiceWorkerContainer not availalble in insecure context");
+done();
+</script>
diff --git a/dom/serviceworkers/test/sanitize/example_check_and_unregister.html b/dom/serviceworkers/test/sanitize/example_check_and_unregister.html
new file mode 100644
index 0000000000..8553e442d6
--- /dev/null
+++ b/dom/serviceworkers/test/sanitize/example_check_and_unregister.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<script>
+  function done(exists) {
+    parent.postMessage(exists, '*');
+  }
+
+  function fail() {
+    parent.postMessage("FAIL", '*');
+  }
+
+  navigator.serviceWorker.getRegistration(".").then(function(reg) {
+    if (reg) {
+      reg.unregister().then(done.bind(undefined, true), fail);
+    } else {
+      dump("getRegistration() returned undefined registration\n");
+      done(false);
+    }
+  }, function(e) {
+    dump("getRegistration() failed\n");
+    fail();
+  });
+</script>
diff --git a/dom/serviceworkers/test/sanitize/frame.html b/dom/serviceworkers/test/sanitize/frame.html
new file mode 100644
index 0000000000..b4bf7a1ff1
--- /dev/null
+++ b/dom/serviceworkers/test/sanitize/frame.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<script>
+  fetch("intercept-this").then(function(r) {
+    if (!r.ok) {
+      return "FAIL";
+    }
+    return r.text();
+  }).then(function(body) {
+    parent.postMessage(body, '*');
+  });
+</script>
diff --git a/dom/serviceworkers/test/sanitize/register.html b/dom/serviceworkers/test/sanitize/register.html
new file mode 100644
index 0000000000..4ae74bec11
--- /dev/null
+++ b/dom/serviceworkers/test/sanitize/register.html
@@ -0,0 +1,9 @@
+<!DOCTYPE html>
+<script>
+  function done() {
+    parent.postMessage('', '*');
+  }
+
+  navigator.serviceWorker.ready.then(done);
+  navigator.serviceWorker.register("../sanitize_worker.js", {scope: "."});
+</script>
diff --git a/dom/serviceworkers/test/sanitize_worker.js b/dom/serviceworkers/test/sanitize_worker.js
new file mode 100644
index 0000000000..920eb7a4f7
--- /dev/null
+++ b/dom/serviceworkers/test/sanitize_worker.js
@@ -0,0 +1,5 @@
+onfetch = function (e) {
+  if (e.request.url.includes("intercept-this")) {
+    e.respondWith(new Response("intercepted"));
+  }
+};
diff --git a/dom/serviceworkers/test/scope/scope_worker.js b/dom/serviceworkers/test/scope/scope_worker.js
new file mode 100644
index 0000000000..4164e7a244
--- /dev/null
+++ b/dom/serviceworkers/test/scope/scope_worker.js
@@ -0,0 +1,2 @@
+// This worker is used to test if calling register() without a scope argument
+// leads to scope being relative to service worker script.
diff --git a/dom/serviceworkers/test/script_file_upload.js b/dom/serviceworkers/test/script_file_upload.js
new file mode 100644
index 0000000000..d2dd227e92
--- /dev/null
+++ b/dom/serviceworkers/test/script_file_upload.js
@@ -0,0 +1,15 @@
+/* eslint-env mozilla/chrome-script */
+
+Cu.importGlobalProperties(["File"]);
+
+addMessageListener("file.open", function (e) {
+  var testFile = Cc["@mozilla.org/file/directory_service;1"]
+    .getService(Ci.nsIDirectoryService)
+    .QueryInterface(Ci.nsIProperties)
+    .get("ProfD", Ci.nsIFile);
+  testFile.append("prefs.js");
+
+  File.createFromNsIFile(testFile).then(function (file) {
+    sendAsyncMessage("file.opened", { file });
+  });
+});
diff --git a/dom/serviceworkers/test/self_update_worker.sjs b/dom/serviceworkers/test/self_update_worker.sjs
new file mode 100644
index 0000000000..8081b20afd
--- /dev/null
+++ b/dom/serviceworkers/test/self_update_worker.sjs
@@ -0,0 +1,42 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+const WORKER_BODY = `
+onactivate = function(event) {
+  let promise = clients.matchAll({includeUncontrolled: true}).then(function(clients) {
+    for (i = 0; i < clients.length; i++) {
+      clients[i].postMessage({version: version});
+    }
+  }).then(function() {
+    return self.registration.update();
+  });
+  event.waitUntil(promise);
+};
+`;
+
+function handleRequest(request, response) {
+  if (request.queryString == "clearcounter") {
+    setState("count", "1");
+    response.write("ok");
+    return;
+  }
+
+  let count = getState("count");
+  if (count === "") {
+    count = 1;
+  } else {
+    count = parseInt(count);
+  }
+
+  let worker = "var version = " + count + ";\n";
+  worker = worker + WORKER_BODY;
+
+  // This header is necessary for making this script able to be loaded.
+  response.setHeader("Content-Type", "application/javascript");
+
+  // If this is the first request, return the first source.
+  response.write(worker);
+  setState("count", "" + (count + 1));
+}
diff --git a/dom/serviceworkers/test/server_file_upload.sjs b/dom/serviceworkers/test/server_file_upload.sjs
new file mode 100644
index 0000000000..a2f960af94
--- /dev/null
+++ b/dom/serviceworkers/test/server_file_upload.sjs
@@ -0,0 +1,22 @@
+const CC = Components.Constructor;
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
+const BinaryOutputStream = CC(
+  "@mozilla.org/binaryoutputstream;1",
+  "nsIBinaryOutputStream",
+  "setOutputStream"
+);
+
+function handleRequest(request, response) {
+  var bodyStream = new BinaryInputStream(request.bodyInputStream);
+  var bodyBytes = [];
+  while ((bodyAvail = bodyStream.available()) > 0) {
+    Array.prototype.push.apply(bodyBytes, bodyStream.readByteArray(bodyAvail));
+  }
+
+  var bos = new BinaryOutputStream(response.bodyOutputStream);
+  bos.writeByteArray(bodyBytes, bodyBytes.length);
+}
diff --git a/dom/serviceworkers/test/service_worker.js b/dom/serviceworkers/test/service_worker.js
new file mode 100644
index 0000000000..90cb97ef82
--- /dev/null
+++ b/dom/serviceworkers/test/service_worker.js
@@ -0,0 +1,9 @@
+onmessage = function (e) {
+  self.clients.matchAll().then(function (res) {
+    if (!res.length) {
+      dump("Error: no clients are currently controlled.\n");
+      return;
+    }
+    res[0].postMessage(indexedDB ? { available: true } : { available: false });
+  });
+};
diff --git a/dom/serviceworkers/test/service_worker_client.html b/dom/serviceworkers/test/service_worker_client.html
new file mode 100644
index 0000000000..c1c98eaabb
--- /dev/null
+++ b/dom/serviceworkers/test/service_worker_client.html
@@ -0,0 +1,28 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+<title>controlled page</title>
+<script class="testbody" type="text/javascript">
+  if (!parent) {
+      info("service_worker_client.html should not be launched directly!");
+  }
+
+  window.onload = function() {
+    navigator.serviceWorker.onmessage = function(msg) {
+      // Forward messages coming from the service worker to the test page.
+      parent.postMessage(msg.data, "*");
+    };
+    navigator.serviceWorker.ready.then(function(swr) {
+      parent.postMessage("READY", "*");
+    });
+  }
+</script>
+
+</head>
+<body>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/serviceworker.html b/dom/serviceworkers/test/serviceworker.html
new file mode 100644
index 0000000000..11edd001a2
--- /dev/null
+++ b/dom/serviceworkers/test/serviceworker.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <script>
+       navigator.serviceWorker.register("worker.js");
+    </script>
+  </head>
+  <body>
+    This is a test page.
+  </body>
+<html>
diff --git a/dom/serviceworkers/test/serviceworker_not_sharedworker.js b/dom/serviceworkers/test/serviceworker_not_sharedworker.js
new file mode 100644
index 0000000000..da0c98aea3
--- /dev/null
+++ b/dom/serviceworkers/test/serviceworker_not_sharedworker.js
@@ -0,0 +1,20 @@
+function OnMessage(e) {
+  if (e.data.msg == "whoareyou") {
+    if ("ServiceWorker" in self) {
+      self.clients.matchAll().then(function (clients) {
+        clients[0].postMessage({ result: "serviceworker" });
+      });
+    } else {
+      port.postMessage({ result: "sharedworker" });
+    }
+  }
+}
+
+var port;
+onconnect = function (e) {
+  port = e.ports[0];
+  port.onmessage = OnMessage;
+  port.start();
+};
+
+onmessage = OnMessage;
diff --git a/dom/serviceworkers/test/serviceworker_wrapper.js b/dom/serviceworkers/test/serviceworker_wrapper.js
new file mode 100644
index 0000000000..a1538f43c4
--- /dev/null
+++ b/dom/serviceworkers/test/serviceworker_wrapper.js
@@ -0,0 +1,92 @@
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/publicdomain/zero/1.0/
+//
+// ServiceWorker equivalent of worker_wrapper.js.
+
+let client;
+
+function ok(a, msg) {
+  dump("OK: " + !!a + "  =>  " + a + ": " + msg + "\n");
+  client.postMessage({ type: "status", status: !!a, msg: a + ": " + msg });
+}
+
+function is(a, b, msg) {
+  dump("IS: " + (a === b) + "  =>  " + a + " | " + b + ": " + msg + "\n");
+  client.postMessage({
+    type: "status",
+    status: a === b,
+    msg: a + " === " + b + ": " + msg,
+  });
+}
+
+function workerTestArrayEquals(a, b) {
+  if (!Array.isArray(a) || !Array.isArray(b) || a.length != b.length) {
+    return false;
+  }
+  for (var i = 0, n = a.length; i < n; ++i) {
+    if (a[i] !== b[i]) {
+      return false;
+    }
+  }
+  return true;
+}
+
+function workerTestDone() {
+  client.postMessage({ type: "finish" });
+}
+
+function workerTestGetHelperData(cb) {
+  addEventListener("message", function workerTestGetHelperDataCB(e) {
+    if (e.data.type !== "returnHelperData") {
+      return;
+    }
+    removeEventListener("message", workerTestGetHelperDataCB);
+    cb(e.data.result);
+  });
+  client.postMessage({
+    type: "getHelperData",
+  });
+}
+
+function workerTestGetStorageManager(cb) {
+  addEventListener("message", function workerTestGetStorageManagerCB(e) {
+    if (e.data.type !== "returnStorageManager") {
+      return;
+    }
+    removeEventListener("message", workerTestGetStorageManagerCB);
+    cb(e.data.result);
+  });
+  client.postMessage({
+    type: "getStorageManager",
+  });
+}
+
+let completeInstall;
+
+addEventListener("message", function workerWrapperOnMessage(e) {
+  removeEventListener("message", workerWrapperOnMessage);
+  var data = e.data;
+  self.clients.matchAll({ includeUncontrolled: true }).then(function (clients) {
+    for (var i = 0; i < clients.length; ++i) {
+      if (clients[i].url.includes("message_receiver.html")) {
+        client = clients[i];
+        break;
+      }
+    }
+    try {
+      importScripts(data.script);
+    } catch (ex) {
+      client.postMessage({
+        type: "status",
+        status: false,
+        msg:
+          "worker failed to import " + data.script + "; error: " + ex.message,
+      });
+    }
+    completeInstall();
+  });
+});
+
+addEventListener("install", e => {
+  e.waitUntil(new Promise(resolve => (completeInstall = resolve)));
+});
diff --git a/dom/serviceworkers/test/serviceworkerinfo_iframe.html b/dom/serviceworkers/test/serviceworkerinfo_iframe.html
new file mode 100644
index 0000000000..24103d1757
--- /dev/null
+++ b/dom/serviceworkers/test/serviceworkerinfo_iframe.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <script>
+      window.onmessage = function (event) {
+        if (event.data !== "register") {
+          return;
+        }
+        var promise = navigator.serviceWorker.register("worker.js",
+                                                       { updateViaCache: 'all' });
+        window.onmessage = function (e) {
+          if (e.data !== "unregister") {
+            return;
+          }
+          promise.then(function (registration) {
+            registration.unregister();
+          });
+          window.onmessage = null;
+        };
+      };
+    </script>
+  </head>
+  <body>
+    This is a test page.
+  </body>
+<html>
diff --git a/dom/serviceworkers/test/serviceworkermanager_iframe.html b/dom/serviceworkers/test/serviceworkermanager_iframe.html
new file mode 100644
index 0000000000..4ea21010cb
--- /dev/null
+++ b/dom/serviceworkers/test/serviceworkermanager_iframe.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <script>
+      window.onmessage = function (event) {
+        if (event.data !== "register") {
+          return;
+        }
+        var promise = navigator.serviceWorker.register("worker.js");
+        window.onmessage = function (event1) {
+          if (event1.data !== "register") {
+            return;
+          }
+          promise = promise.then(function (registration) {
+            return navigator.serviceWorker.register("worker2.js");
+          });
+          window.onmessage = function (event2) {
+            if (event2.data !== "unregister") {
+              return;
+            }
+            promise.then(function (registration) {
+              registration.unregister();
+            });
+            window.onmessage = null;
+          };
+        };
+      };
+    </script>
+  </head>
+  <body>
+    This is a test page.
+  </body>
+<html>
diff --git a/dom/serviceworkers/test/serviceworkerregistrationinfo_iframe.html b/dom/serviceworkers/test/serviceworkerregistrationinfo_iframe.html
new file mode 100644
index 0000000000..8f382cf0dc
--- /dev/null
+++ b/dom/serviceworkers/test/serviceworkerregistrationinfo_iframe.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <script>
+      var reg;
+      window.onmessage = function (event) {
+        if (event.data !== "register") {
+          return;
+        }
+        var promise = navigator.serviceWorker.register("worker.js");
+        window.onmessage = function (e) {
+          if (e.data === "register") {
+            promise.then(function() {
+              return navigator.serviceWorker.register("worker2.js")
+                .then(function(registration) {
+                  reg = registration;
+                });
+            });
+          } else if (e.data === "unregister") {
+            reg.unregister();
+          }
+        };
+      };
+    </script>
+  </head>
+  <body>
+    This is a test page.
+  </body>
+<html>
diff --git a/dom/serviceworkers/test/sharedWorker_fetch.js b/dom/serviceworkers/test/sharedWorker_fetch.js
new file mode 100644
index 0000000000..89618c4e83
--- /dev/null
+++ b/dom/serviceworkers/test/sharedWorker_fetch.js
@@ -0,0 +1,30 @@
+var clients = new Array();
+clients.length = 0;
+
+var broadcast = function (message) {
+  var length = clients.length;
+  for (var i = 0; i < length; i++) {
+    port = clients[i];
+    port.postMessage(message);
+  }
+};
+
+onconnect = function (e) {
+  clients.push(e.ports[0]);
+  if (clients.length == 1) {
+    clients[0].postMessage("Connected");
+  } else if (clients.length == 2) {
+    broadcast("BothConnected");
+    clients[0].onmessage = function (msg) {
+      if (msg.data == "StartFetchWithWrongIntegrity") {
+        // The fetch will succeed because the integrity value is invalid and we
+        // are looking for the console message regarding the bad integrity value.
+        fetch("SharedWorker_SRIFailed.html", { integrity: "abc" }).then(
+          function () {
+            clients[0].postMessage("SRI_failed");
+          }
+        );
+      }
+    };
+  }
+};
diff --git a/dom/serviceworkers/test/simple_fetch_worker.js b/dom/serviceworkers/test/simple_fetch_worker.js
new file mode 100644
index 0000000000..09c82011e5
--- /dev/null
+++ b/dom/serviceworkers/test/simple_fetch_worker.js
@@ -0,0 +1,18 @@
+// A simple worker script that forward intercepted url to the controlled window.
+
+function responseMsg(msg) {
+  self.clients
+    .matchAll({
+      includeUncontrolled: true,
+      type: "window",
+    })
+    .then(clients => {
+      if (clients && clients.length) {
+        clients[0].postMessage(msg);
+      }
+    });
+}
+
+onfetch = function (e) {
+  responseMsg(e.request.url);
+};
diff --git a/dom/serviceworkers/test/simpleregister/index.html b/dom/serviceworkers/test/simpleregister/index.html
new file mode 100644
index 0000000000..99e4fe3f23
--- /dev/null
+++ b/dom/serviceworkers/test/simpleregister/index.html
@@ -0,0 +1,51 @@
+<html>
+  <head></head>
+  <body>
+      <script type="text/javascript">
+          var expectedEvents = 2;
+          function eventReceived() {
+            window.parent.postMessage({ type: "check", status: expectedEvents > 0, msg: "updatefound received" }, "*");
+
+            if (--expectedEvents) {
+              window.parent.postMessage({ type: "finish" }, "*");
+            }
+          }
+
+          navigator.serviceWorker.getRegistrations().then(function(a) {
+            window.parent.postMessage({ type: "check", status: Array.isArray(a),
+                                        msg: "getRegistrations returns an array" }, "*");
+            window.parent.postMessage({ type: "check", status: !!a.length,
+                                        msg: "getRegistrations returns an array with 1 item" }, "*");
+            for (var i = 0; i < a.length; ++i) {
+              window.parent.postMessage({ type: "check", status: a[i] instanceof ServiceWorkerRegistration,
+                                          msg: "getRegistrations returns an array of ServiceWorkerRegistration objects" }, "*");
+              if (a[i].scope.match(/simpleregister\//)) {
+                a[i].onupdatefound = function(e) {
+                  eventReceived();
+                }
+              }
+            }
+          });
+
+          navigator.serviceWorker.getRegistration('http://mochi.test:8888/tests/dom/serviceworkers/test/simpleregister/')
+            .then(function(a) {
+            window.parent.postMessage({ type: "check", status: a instanceof ServiceWorkerRegistration,
+                                        msg: "getRegistration returns a ServiceWorkerRegistration" }, "*");
+            a.onupdatefound = function(e) {
+              eventReceived();
+            }
+          });
+
+          navigator.serviceWorker.getRegistration('http://www.something_else.net/')
+            .then(function(a) {
+            window.parent.postMessage({ type: "check", status: false,
+                                        msg: "getRegistration should throw for security error!" }, "*");
+          }, function(a) {
+            window.parent.postMessage({ type: "check", status: true,
+                                        msg: "getRegistration should throw for security error!" }, "*");
+          });
+
+          window.parent.postMessage({ type: "ready" }, "*");
+      </script>
+  </body>
+</html>
diff --git a/dom/serviceworkers/test/simpleregister/ready.html b/dom/serviceworkers/test/simpleregister/ready.html
new file mode 100644
index 0000000000..6bc163e5f4
--- /dev/null
+++ b/dom/serviceworkers/test/simpleregister/ready.html
@@ -0,0 +1,14 @@
+<html>
+  <head></head>
+  <body>
+    <script type="text/javascript">
+
+      window.addEventListener('message', function(evt) {
+        navigator.serviceWorker.ready.then(function() {
+          evt.ports[0].postMessage("WOW!");
+        });
+      });
+
+    </script>
+  </body>
+</html>
diff --git a/dom/serviceworkers/test/skip_waiting_installed_worker.js b/dom/serviceworkers/test/skip_waiting_installed_worker.js
new file mode 100644
index 0000000000..a142576b9d
--- /dev/null
+++ b/dom/serviceworkers/test/skip_waiting_installed_worker.js
@@ -0,0 +1,6 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+self.addEventListener("install", evt => {
+  evt.waitUntil(self.skipWaiting());
+});
diff --git a/dom/serviceworkers/test/skip_waiting_scope/index.html b/dom/serviceworkers/test/skip_waiting_scope/index.html
new file mode 100644
index 0000000000..2b480d8707
--- /dev/null
+++ b/dom/serviceworkers/test/skip_waiting_scope/index.html
@@ -0,0 +1,33 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1131352 - Add ServiceWorkerGlobalScope skipWaiting()</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  if (!parent) {
+    info("skip_waiting_scope/index.html shouldn't be launched directly!");
+  }
+
+  navigator.serviceWorker.oncontrollerchange = function() {
+    parent.postMessage({
+      event: "controllerchange",
+      controllerScriptURL: navigator.serviceWorker.controller &&
+                           navigator.serviceWorker.controller.scriptURL
+    }, "*");
+  }
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/source_message_posting_worker.js b/dom/serviceworkers/test/source_message_posting_worker.js
new file mode 100644
index 0000000000..8ca6246c51
--- /dev/null
+++ b/dom/serviceworkers/test/source_message_posting_worker.js
@@ -0,0 +1,16 @@
+onmessage = function (e) {
+  if (!e.source) {
+    dump("ERROR: message doesn't have a source.");
+  }
+
+  if (!(e instanceof ExtendableMessageEvent)) {
+    e.source.postMessage("ERROR. event is not an extendable message event.");
+  }
+
+  // The client should be a window client
+  if (e.source instanceof WindowClient) {
+    e.source.postMessage(e.data);
+  } else {
+    e.source.postMessage("ERROR. source is not a window client.");
+  }
+};
diff --git a/dom/serviceworkers/test/storage_recovery_worker.sjs b/dom/serviceworkers/test/storage_recovery_worker.sjs
new file mode 100644
index 0000000000..9c9ce6a8d7
--- /dev/null
+++ b/dom/serviceworkers/test/storage_recovery_worker.sjs
@@ -0,0 +1,23 @@
+const BASE_URI = "http://mochi.test:8888/browser/dom/serviceworkers/test/";
+
+function handleRequest(request, response) {
+  let redirect = getState("redirect");
+  setState("redirect", "false");
+
+  if (request.queryString.includes("set-redirect")) {
+    setState("redirect", "true");
+  } else if (request.queryString.includes("clear-redirect")) {
+    setState("redirect", "false");
+  }
+
+  response.setHeader("Cache-Control", "no-store");
+
+  if (redirect === "true") {
+    response.setStatusLine(request.httpVersion, 307, "Moved Temporarily");
+    response.setHeader("Location", BASE_URI + "empty.js");
+    return;
+  }
+
+  response.setHeader("Content-Type", "application/javascript");
+  response.write("");
+}
diff --git a/dom/serviceworkers/test/streamfilter_server.sjs b/dom/serviceworkers/test/streamfilter_server.sjs
new file mode 100644
index 0000000000..0e5a62d1dd
--- /dev/null
+++ b/dom/serviceworkers/test/streamfilter_server.sjs
@@ -0,0 +1,9 @@
+Components.utils.importGlobalProperties(["URLSearchParams"]);
+
+function handleRequest(request, response) {
+  const searchParams = new URLSearchParams(request.queryString);
+
+  if (searchParams.get("syntheticResponse") === "0") {
+    response.write(String(searchParams));
+  }
+}
diff --git a/dom/serviceworkers/test/streamfilter_worker.js b/dom/serviceworkers/test/streamfilter_worker.js
new file mode 100644
index 0000000000..03a0f0a933
--- /dev/null
+++ b/dom/serviceworkers/test/streamfilter_worker.js
@@ -0,0 +1,9 @@
+onactivate = e => e.waitUntil(clients.claim());
+
+onfetch = e => {
+  const searchParams = new URL(e.request.url).searchParams;
+
+  if (searchParams.get("syntheticResponse") === "1") {
+    e.respondWith(new Response(String(searchParams)));
+  }
+};
diff --git a/dom/serviceworkers/test/strict_mode_warning.js b/dom/serviceworkers/test/strict_mode_warning.js
new file mode 100644
index 0000000000..38418de3d8
--- /dev/null
+++ b/dom/serviceworkers/test/strict_mode_warning.js
@@ -0,0 +1,4 @@
+function f() {
+  return 1;
+  return 2;
+}
diff --git a/dom/serviceworkers/test/sw_bad_mime_type.js b/dom/serviceworkers/test/sw_bad_mime_type.js
new file mode 100644
index 0000000000..f371807db9
--- /dev/null
+++ b/dom/serviceworkers/test/sw_bad_mime_type.js
@@ -0,0 +1 @@
+// I need some contents.
diff --git a/dom/serviceworkers/test/sw_bad_mime_type.js^headers^ b/dom/serviceworkers/test/sw_bad_mime_type.js^headers^
new file mode 100644
index 0000000000..a1f9e38d90
--- /dev/null
+++ b/dom/serviceworkers/test/sw_bad_mime_type.js^headers^
@@ -0,0 +1 @@
+Content-Type: text/plain
diff --git a/dom/serviceworkers/test/sw_clients/file_blob_upload_frame.html b/dom/serviceworkers/test/sw_clients/file_blob_upload_frame.html
new file mode 100644
index 0000000000..ff9803622a
--- /dev/null
+++ b/dom/serviceworkers/test/sw_clients/file_blob_upload_frame.html
@@ -0,0 +1,76 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>test file blob upload with SW interception</title>
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+if (!parent) {
+  dump("sw_clients/file_blob_upload_frame.html shouldn't be launched directly!");
+}
+
+function makeFileBlob(obj) {
+  return new Promise(function(resolve, reject) {
+
+    var request = indexedDB.open(window.location.pathname, 1);
+    request.onerror = reject;
+    request.onupgradeneeded = function(evt) {
+      var db = evt.target.result;
+      db.onerror = reject;
+
+      var objectStore = db.createObjectStore('test', { autoIncrement: true });
+      var index = objectStore.createIndex('test', 'index');
+    };
+
+    request.onsuccess = function(evt) {
+      var db = evt.target.result;
+      db.onerror = reject;
+
+      var blob = new Blob([JSON.stringify(obj)],
+                          { type: 'application/json' });
+      var data = { blob, index: 5 };
+
+      objectStore = db.transaction('test', 'readwrite').objectStore('test');
+      objectStore.add(data).onsuccess = function(evt1) {
+        var key = evt1.target.result;
+        objectStore = db.transaction('test').objectStore('test');
+        objectStore.get(key).onsuccess = function(evt2) {
+          resolve(evt2.target.result.blob);
+        };
+      };
+    };
+  });
+}
+
+navigator.serviceWorker.ready.then(function() {
+  parent.postMessage({ status: 'READY' }, '*');
+});
+
+var URL = '/tests/dom/serviceworkers/test/redirect_post.sjs';
+
+addEventListener('message', function(evt) {
+  if (evt.data.type = 'TEST') {
+    makeFileBlob(evt.data.body).then(function(blob) {
+      return fetch(URL, { method: 'POST', body: blob });
+    }).then(function(response) {
+      return response.json();
+    }).then(function(result) {
+      parent.postMessage({ status: 'OK', result }, '*');
+    }).catch(function(e) {
+      parent.postMessage({ status: 'ERROR', result: e.toString() }, '*');
+    });
+  }
+});
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/sw_clients/navigator.html b/dom/serviceworkers/test/sw_clients/navigator.html
new file mode 100644
index 0000000000..16a4fe9189
--- /dev/null
+++ b/dom/serviceworkers/test/sw_clients/navigator.html
@@ -0,0 +1,34 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 982726 - test match_all not crashing</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  if (!parent) {
+    dump("sw_clients/navigator.html shouldn't be launched directly!\n");
+  }
+
+  window.addEventListener("message", function(event) {
+    if (event.data.type === "NAVIGATE") {
+      window.location = event.data.url;
+    }
+  });
+
+  navigator.serviceWorker.ready.then(function() {
+    parent.postMessage("NAVIGATOR_READY", "*");
+  });
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/sw_clients/refresher.html b/dom/serviceworkers/test/sw_clients/refresher.html
new file mode 100644
index 0000000000..b3c6e00152
--- /dev/null
+++ b/dom/serviceworkers/test/sw_clients/refresher.html
@@ -0,0 +1,38 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 982726 - test match_all not crashing</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+  <!-- some tests will intercept this bogus script request -->
+  <script type="text/javascript" src="does_not_exist.js"></script>
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  if (!parent) {
+    dump("sw_clients/simple.html shouldn't be launched directly!");
+  }
+
+  window.addEventListener("message", function(event) {
+    if (event.data === "REFRESH") {
+      window.location.reload();
+    } else if (event.data === "FORCE_REFRESH") {
+      window.location.reload(true);
+    }
+  });
+
+  navigator.serviceWorker.ready.then(function() {
+    parent.postMessage("READY", "*");
+  });
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/sw_clients/refresher_cached.html b/dom/serviceworkers/test/sw_clients/refresher_cached.html
new file mode 100644
index 0000000000..4a91e46e99
--- /dev/null
+++ b/dom/serviceworkers/test/sw_clients/refresher_cached.html
@@ -0,0 +1,37 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 982726 - test match_all not crashing</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  if (!parent) {
+    info("sw_clients/simple.html shouldn't be launched directly!");
+  }
+
+  window.addEventListener("message", function(event) {
+    if (event.data === "REFRESH") {
+      window.location.reload();
+    } else if (event.data === "FORCE_REFRESH") {
+      window.location.reload(true);
+    }
+  });
+
+  navigator.serviceWorker.ready.then(function() {
+    parent.postMessage("READY_CACHED", "*");
+  });
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/sw_clients/refresher_cached_compressed.html b/dom/serviceworkers/test/sw_clients/refresher_cached_compressed.html
new file mode 100644
index 0000000000..6b6a328211
Binary files /dev/null and b/dom/serviceworkers/test/sw_clients/refresher_cached_compressed.html differ
diff --git a/dom/serviceworkers/test/sw_clients/refresher_cached_compressed.html^headers^ b/dom/serviceworkers/test/sw_clients/refresher_cached_compressed.html^headers^
new file mode 100644
index 0000000000..4204d8601d
--- /dev/null
+++ b/dom/serviceworkers/test/sw_clients/refresher_cached_compressed.html^headers^
@@ -0,0 +1,2 @@
+Content-Type: text/html
+Content-Encoding: gzip
diff --git a/dom/serviceworkers/test/sw_clients/refresher_compressed.html b/dom/serviceworkers/test/sw_clients/refresher_compressed.html
new file mode 100644
index 0000000000..e0861a5180
Binary files /dev/null and b/dom/serviceworkers/test/sw_clients/refresher_compressed.html differ
diff --git a/dom/serviceworkers/test/sw_clients/refresher_compressed.html^headers^ b/dom/serviceworkers/test/sw_clients/refresher_compressed.html^headers^
new file mode 100644
index 0000000000..4204d8601d
--- /dev/null
+++ b/dom/serviceworkers/test/sw_clients/refresher_compressed.html^headers^
@@ -0,0 +1,2 @@
+Content-Type: text/html
+Content-Encoding: gzip
diff --git a/dom/serviceworkers/test/sw_clients/service_worker_controlled.html b/dom/serviceworkers/test/sw_clients/service_worker_controlled.html
new file mode 100644
index 0000000000..e0d7bce573
--- /dev/null
+++ b/dom/serviceworkers/test/sw_clients/service_worker_controlled.html
@@ -0,0 +1,38 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>controlled page</title>
+  <!--
+    Paged controlled by a service worker for testing matchAll().
+    See bug 982726, 1058311.
+  -->
+<script class="testbody" type="text/javascript">
+  function fail(msg) {
+    info("service_worker_controlled.html: " + msg);
+    opener.postMessage("FAIL", "*");
+  }
+
+  if (!parent) {
+      info("service_worker_controlled.html should not be launched directly!");
+  }
+
+  window.onload = function() {
+    navigator.serviceWorker.ready.then(function(swr) {
+      parent.postMessage("READY", "*");
+    });
+  }
+
+  navigator.serviceWorker.onmessage = function(msg) {
+    // forward message to the test page.
+    parent.postMessage(msg.data, "*");
+  };
+</script>
+
+</head>
+<body>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/sw_clients/simple.html b/dom/serviceworkers/test/sw_clients/simple.html
new file mode 100644
index 0000000000..bbe6782e2a
--- /dev/null
+++ b/dom/serviceworkers/test/sw_clients/simple.html
@@ -0,0 +1,29 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 982726 - test match_all not crashing</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  if (!parent) {
+    info("sw_clients/simple.html shouldn't be launched directly!");
+  }
+
+  navigator.serviceWorker.ready.then(function() {
+    parent.postMessage("READY", "*");
+  });
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/sw_file_upload.js b/dom/serviceworkers/test/sw_file_upload.js
new file mode 100644
index 0000000000..20c695614b
--- /dev/null
+++ b/dom/serviceworkers/test/sw_file_upload.js
@@ -0,0 +1,16 @@
+self.skipWaiting();
+
+addEventListener("fetch", event => {
+  const url = new URL(event.request.url);
+  const params = new URLSearchParams(url.search);
+
+  if (params.get("clone") === "1") {
+    event.respondWith(fetch(event.request.clone()));
+  } else {
+    event.respondWith(fetch(event.request));
+  }
+});
+
+addEventListener("activate", function (event) {
+  event.waitUntil(clients.claim());
+});
diff --git a/dom/serviceworkers/test/sw_respondwith_serviceworker.js b/dom/serviceworkers/test/sw_respondwith_serviceworker.js
new file mode 100644
index 0000000000..6ddbc3d5c1
--- /dev/null
+++ b/dom/serviceworkers/test/sw_respondwith_serviceworker.js
@@ -0,0 +1,24 @@
+const SERVICEWORKER_DOC = `<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <script src="utils.js" type="text/javascript"></script>
+</head>
+<body>
+SERVICEWORKER
+</body>
+</html>
+`;
+
+const SERVICEWORKER_RESPONSE = new Response(SERVICEWORKER_DOC, {
+  headers: { "content-type": "text/html" },
+});
+
+addEventListener("fetch", event => {
+  // Allow utils.js which we explicitly include to be loaded by resetting
+  // interception.
+  if (event.request.url.endsWith("/utils.js")) {
+    return;
+  }
+  event.respondWith(SERVICEWORKER_RESPONSE.clone());
+});
diff --git a/dom/serviceworkers/test/sw_storage_not_allow.js b/dom/serviceworkers/test/sw_storage_not_allow.js
new file mode 100644
index 0000000000..2eb2403309
--- /dev/null
+++ b/dom/serviceworkers/test/sw_storage_not_allow.js
@@ -0,0 +1,33 @@
+let clientId;
+addEventListener("fetch", function (event) {
+  event.respondWith(
+    (async function () {
+      if (event.request.url.includes("getClients")) {
+        // Expected to fail since the storage access is not allowed.
+        try {
+          await self.clients.matchAll();
+        } catch (e) {
+          // expected failure
+        }
+      } else if (event.request.url.includes("getClient-stage1")) {
+        let clients = await self.clients.matchAll();
+        clientId = clients[0].id;
+      } else if (event.request.url.includes("getClient-stage2")) {
+        // Expected to fail since the storage access is not allowed.
+        try {
+          await self.clients.get(clientId);
+        } catch (e) {
+          // expected failure
+        }
+      }
+
+      // Pass through the network request once our various Clients API
+      // promises have completed.
+      return await fetch(event.request);
+    })()
+  );
+});
+
+addEventListener("activate", function (event) {
+  event.waitUntil(clients.claim());
+});
diff --git a/dom/serviceworkers/test/sw_with_navigationPreload.js b/dom/serviceworkers/test/sw_with_navigationPreload.js
new file mode 100644
index 0000000000..afd7181dcf
--- /dev/null
+++ b/dom/serviceworkers/test/sw_with_navigationPreload.js
@@ -0,0 +1,28 @@
+addEventListener("activate", event => {
+  event.waitUntil(self.registration.navigationPreload.enable());
+});
+
+async function post_to_page(data) {
+  let cs = await self.clients.matchAll();
+  for (const client of cs) {
+    client.postMessage(data);
+  }
+}
+
+addEventListener("fetch", event => {
+  if (event.request.url.includes("navigationPreload_page.html")) {
+    event.respondWith(
+      new Response("<!DOCTYPE html>", {
+        headers: { "Content-Type": "text/html; charset=utf-8" },
+      })
+    );
+
+    event.waitUntil(
+      (async function () {
+        let preloadResponse = await event.preloadResponse;
+        let text = await preloadResponse.text();
+        await post_to_page(text);
+      })()
+    );
+  }
+});
diff --git a/dom/serviceworkers/test/swa/worker_scope_different.js b/dom/serviceworkers/test/swa/worker_scope_different.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/dom/serviceworkers/test/swa/worker_scope_different.js^headers^ b/dom/serviceworkers/test/swa/worker_scope_different.js^headers^
new file mode 100644
index 0000000000..e85a7f09de
--- /dev/null
+++ b/dom/serviceworkers/test/swa/worker_scope_different.js^headers^
@@ -0,0 +1 @@
+Service-Worker-Allowed: different/path
diff --git a/dom/serviceworkers/test/swa/worker_scope_different2.js b/dom/serviceworkers/test/swa/worker_scope_different2.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/dom/serviceworkers/test/swa/worker_scope_different2.js^headers^ b/dom/serviceworkers/test/swa/worker_scope_different2.js^headers^
new file mode 100644
index 0000000000..e37307d666
--- /dev/null
+++ b/dom/serviceworkers/test/swa/worker_scope_different2.js^headers^
@@ -0,0 +1 @@
+Service-Worker-Allowed: /different/path
diff --git a/dom/serviceworkers/test/swa/worker_scope_precise.js b/dom/serviceworkers/test/swa/worker_scope_precise.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/dom/serviceworkers/test/swa/worker_scope_precise.js^headers^ b/dom/serviceworkers/test/swa/worker_scope_precise.js^headers^
new file mode 100644
index 0000000000..7488cafbb0
--- /dev/null
+++ b/dom/serviceworkers/test/swa/worker_scope_precise.js^headers^
@@ -0,0 +1 @@
+Service-Worker-Allowed: /tests/dom/serviceworkers/test/swa
diff --git a/dom/serviceworkers/test/swa/worker_scope_too_deep.js b/dom/serviceworkers/test/swa/worker_scope_too_deep.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/dom/serviceworkers/test/swa/worker_scope_too_deep.js^headers^ b/dom/serviceworkers/test/swa/worker_scope_too_deep.js^headers^
new file mode 100644
index 0000000000..9a66c3d153
--- /dev/null
+++ b/dom/serviceworkers/test/swa/worker_scope_too_deep.js^headers^
@@ -0,0 +1 @@
+Service-Worker-Allowed: /tests/dom/serviceworkers/test/swa/deep/way/too/specific
diff --git a/dom/serviceworkers/test/swa/worker_scope_too_narrow.js b/dom/serviceworkers/test/swa/worker_scope_too_narrow.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/dom/serviceworkers/test/swa/worker_scope_too_narrow.js^headers^ b/dom/serviceworkers/test/swa/worker_scope_too_narrow.js^headers^
new file mode 100644
index 0000000000..407361a3c7
--- /dev/null
+++ b/dom/serviceworkers/test/swa/worker_scope_too_narrow.js^headers^
@@ -0,0 +1 @@
+Service-Worker-Allowed: /tests/dom/serviceworkers
diff --git a/dom/serviceworkers/test/test_abrupt_completion.html b/dom/serviceworkers/test/test_abrupt_completion.html
new file mode 100644
index 0000000000..bbf9e965f0
--- /dev/null
+++ b/dom/serviceworkers/test/test_abrupt_completion.html
@@ -0,0 +1,144 @@
+<!doctype html>
+<meta charset=utf-8>
+<title></title>
+<script src="/tests/SimpleTest/SimpleTest.js"></script>
+<script>
+
+// Tests a _registered_ ServiceWorker whose script evaluation results in an
+// "abrupt completion", e.g. threw an uncaught exception. Such a ServiceWorker's
+// first script evaluation must result in a "normal completion", however, for
+// the Update algorithm to not abort in its step 18 when registering:
+//
+// 18. If runResult is failure or an abrupt completion, then: [...]
+
+const script = "./abrupt_completion_worker.js";
+const scope = "./empty.html";
+const expectedMessage = "handler-before-throw";
+let registration = null;
+
+// Should only be called once registration.active is non-null. Uses
+// implementation details by zero-ing the "idle timeout"s and then sending  an
+// event to the ServiceWorker, which should immediately cause its termination.
+// The idle timeouts are restored after the ServiceWorker is terminated.
+async function startAndStopServiceWorker() {
+  SpecialPowers.registerObservers("service-worker-shutdown");
+
+  const spTopic = "specialpowers-service-worker-shutdown";
+
+  const origIdleTimeout =
+    SpecialPowers.getIntPref("dom.serviceWorkers.idle_timeout");
+
+  const origIdleExtendedTimeout =
+    SpecialPowers.getIntPref("dom.serviceWorkers.idle_extended_timeout");
+
+  await new Promise(resolve => {
+    const observer = {
+      async observe(subject, topic, data) {
+        if (topic !== spTopic) {
+          return;
+        }
+
+        SpecialPowers.removeObserver(observer, spTopic);
+
+        await SpecialPowers.pushPrefEnv({
+          set: [
+              ["dom.serviceWorkers.idle_timeout", origIdleTimeout],
+              ["dom.serviceWorkers.idle_extended_timeout", origIdleExtendedTimeout]
+            ]
+        });
+
+        resolve();
+      },
+    };
+
+    // Speed things up.
+    SpecialPowers.pushPrefEnv({
+      set: [
+          ["dom.serviceWorkers.idle_timeout", 0],
+          ["dom.serviceWorkers.idle_extended_timeout", 0]
+        ]
+    }).then(() => {
+      SpecialPowers.addObserver(observer, spTopic);
+
+      registration.active.postMessage("");
+    });
+  });
+}
+
+// eslint-disable-next-line mozilla/no-addtask-setup
+add_task(async function setup() {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+        ["dom.serviceWorkers.enabled", true],
+        ["dom.serviceWorkers.testing.enabled", true]
+      ]
+  });
+
+  registration = await navigator.serviceWorker.register(script, { scope });
+  SimpleTest.registerCleanupFunction(async function unregisterRegistration() {
+    await registration.unregister();
+  });
+
+  await new Promise(resolve => {
+    const serviceWorker = registration.installing;
+
+    serviceWorker.onstatechange = () => {
+      if (serviceWorker.state === "activated") {
+        resolve();
+      }
+    };
+  });
+
+  ok(registration.active instanceof ServiceWorker, "ServiceWorker is activated");
+});
+
+// We expect that the restarted SW that experiences an abrupt completion at
+// startup after adding its message handler 1) will be active in order to
+// respond to our postMessage and 2) will respond with the global value set
+// prior to the importScripts call that throws (and not the global value that
+// would have been assigned after the importScripts call if it didn't throw).
+add_task(async function testMessageHandler() {
+  await startAndStopServiceWorker();
+
+  await new Promise(resolve => {
+    navigator.serviceWorker.onmessage = e => {
+      is(e.data, expectedMessage, "Correct message handler");
+      resolve();
+    };
+    registration.active.postMessage("");
+  });
+});
+
+// We expect that the restarted SW that experiences an abrupt completion at
+// startup before adding its "fetch" listener will 1) successfully dispatch the
+// event and 2) it will not be handled (respondWith() will not be called) so
+// interception will be reset and the response will contain the contents of
+// empty.html. Before the fix in bug 1603484 the SW would fail to properly start
+// up and the fetch event would result in a NetworkError, breaking the
+// controlled page.
+add_task(async function testFetchHandler() {
+  await startAndStopServiceWorker();
+
+  const iframe = document.createElement("iframe");
+  SimpleTest.registerCleanupFunction(function removeIframe() {
+    iframe.remove();
+  });
+
+  await new Promise(resolve => {
+    iframe.src = scope;
+    iframe.onload = resolve;
+    document.body.appendChild(iframe);
+  });
+
+  const response = await iframe.contentWindow.fetch(scope);
+
+  // NetworkError will have a status of 0, which is not "ok", and this is
+  // a stronger guarantee that should be true instead of just checking if there
+  // isn't a NetworkError.
+  ok(response.ok, "Fetch succeeded and didn't result in a NetworkError");
+
+  const text = await response.text();
+  is(text, "", "Correct response text");
+});
+
+</script>
diff --git a/dom/serviceworkers/test/test_async_waituntil.html b/dom/serviceworkers/test/test_async_waituntil.html
new file mode 100644
index 0000000000..8c15eb2b11
--- /dev/null
+++ b/dom/serviceworkers/test/test_async_waituntil.html
@@ -0,0 +1,91 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+  Test that:
+  1. waitUntil() waits for each individual promise separately, even if
+     one of them was rejected.
+  2. waitUntil() can be called asynchronously as long as there is still
+     a pending extension promise.
+  -->
+<head>
+  <title>Test for Bug 1263304</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="error_reporting_helpers.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+  <meta http-equiv="Content-type" content="text/html;charset=UTF-8">
+</head>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1263304">Mozilla Bug 1263304</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+</pre>
+
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+add_task(function setupPrefs() {
+  return SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+  ]});
+});
+
+function wait_for_message(expected_message) {
+  return new Promise(function(resolve, reject) {
+    navigator.serviceWorker.onmessage = function(event) {
+      navigator.serviceWorker.onmessage = null;
+      ok(event.data === expected_message, "Received expected message event: " + event.data);
+      resolve();
+    }
+  });
+}
+
+add_task(async function async_wait_until() {
+  var worker;
+  let registration = await navigator.serviceWorker.register(
+    "async_waituntil_worker.js", { scope: "./"} )
+    .then(function(reg) {
+      worker = reg.installing;
+      return waitForState(worker, 'activated', reg);
+    });
+
+  // The service worker will claim us when it becomes active.
+  ok(navigator.serviceWorker.controller, "Controlled");
+
+  // This will make the service worker die immediately if there are no pending
+  // waitUntil promises to keep it alive.
+  await SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.idle_timeout", 0],
+    ["dom.serviceWorkers.idle_extended_timeout", 299999]]});
+
+  // The service worker will wait on two promises, one of which
+  // will be rejected. We check whether the SW is killed using
+  // the value of a global variable.
+  let waitForStart = wait_for_message("Started");
+  worker.postMessage("Start");
+  await waitForStart;
+
+  await new Promise((res, rej) => {
+    setTimeout(res, 0);
+  });
+
+  let waitResult = wait_for_message("Success");
+  worker.postMessage("Result");
+  await waitResult;
+
+  // Test the behaviour of calling waitUntil asynchronously. The important
+  // part is that we receive the message event.
+  let waitForMessage = wait_for_message("Done");
+  await fetch("doesnt_exist.html").then(() => {
+    ok(true, "Fetch was successful.");
+  });
+  await waitForMessage;
+
+  await SpecialPowers.popPrefEnv();
+  await SpecialPowers.popPrefEnv();
+  await registration.unregister();
+});
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_bad_script_cache.html b/dom/serviceworkers/test/test_bad_script_cache.html
new file mode 100644
index 0000000000..7919802678
--- /dev/null
+++ b/dom/serviceworkers/test/test_bad_script_cache.html
@@ -0,0 +1,96 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test updating a service worker with a bad script cache.</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<script src='utils.js'></script>
+<script class="testbody" type="text/javascript">
+
+async function deleteCaches(cacheStorage) {
+  let keyList = await cacheStorage.keys();
+  let promiseList = [];
+  keyList.forEach(key => {
+    promiseList.push(cacheStorage.delete(key));
+  });
+  return await Promise.all(keyList);
+}
+
+function waitForUpdate(reg) {
+  return new Promise(resolve => {
+    reg.addEventListener('updatefound', resolve, { once: true });
+  });
+}
+
+async function runTest() {
+  let reg;
+  try {
+    const script = 'update_worker.sjs';
+    const scope = 'bad-script-cache';
+
+    reg = await navigator.serviceWorker.register(script, { scope });
+    await waitForState(reg.installing, 'activated');
+
+    // Verify the service worker script cache has the worker script stored.
+    let chromeCaches = SpecialPowers.createChromeCache('chrome', window.origin);
+    let scriptURL = new URL(script, window.location.href);
+    let response = await chromeCaches.match(scriptURL.href);
+    is(response.url, scriptURL.href, 'worker script should be stored');
+
+    // Force delete the service worker script out from under the service worker.
+    // Note: Prefs are set to kill the SW thread immediately on idle.
+    await deleteCaches(chromeCaches);
+
+    // Verify the service script cache no longer knows about the worker script.
+    response = await chromeCaches.match(scriptURL.href);
+    is(response, undefined, 'worker script should not be stored');
+
+    // Force an update and wait for it to fire an update event.
+    reg.update();
+    await waitForUpdate(reg);
+    await waitForState(reg.installing, 'activated');
+
+    // Verify that the script cache knows about the worker script again.
+    response = await chromeCaches.match(scriptURL.href);
+    is(response.url, scriptURL.href, 'worker script should be stored');
+  } catch (e) {
+    ok(false, e);
+  }
+  if (reg) {
+    await reg.unregister();
+  }
+
+  // If this test is run on windows and the process shuts down immediately after, then
+  // we may fail to remove some of the Cache API body files.  This is because the GC
+  // runs late causing Cache API to cleanup after shutdown begins.  It seems something
+  // during shutdown scans these files and conflicts with removing the file on windows.
+  //
+  // To avoid this we perform an explict GC here to ensure that Cache API can cleanup
+  // earlier.
+  await new Promise(resolve => SpecialPowers.exactGC(resolve));
+
+  SimpleTest.finish();
+}
+
+SimpleTest.waitForExplicitFinish();
+SpecialPowers.pushPrefEnv({"set": [
+  // standard prefs
+  ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+  ["dom.serviceWorkers.enabled", true],
+  ["dom.serviceWorkers.testing.enabled", true],
+  ["dom.caches.enabled", true],
+
+  // immediately kill the service worker thread when idle
+  ["dom.serviceWorkers.idle_timeout", 0],
+
+]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_bug1151916.html b/dom/serviceworkers/test/test_bug1151916.html
new file mode 100644
index 0000000000..b541129ccb
--- /dev/null
+++ b/dom/serviceworkers/test/test_bug1151916.html
@@ -0,0 +1,104 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1151916 - Test principal is set on cached serviceworkers</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+<!--
+  If the principal is not set, accessing self.caches in the worker will crash.
+-->
+</head>
+<body>
+<p id="display"></p>
+<div id="content"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var frame;
+
+  function listenForMessage() {
+    var p = new Promise(function(resolve, reject) {
+      window.onmessage = function(e) {
+        if (e.data.status == "failed") {
+          ok(false, "iframe had error " + e.data.message);
+          reject(e.data.message);
+        } else if (e.data.status == "success") {
+          ok(true, "iframe step success " + e.data.message);
+          resolve(e.data.message);
+        } else {
+          ok(false, "Unexpected message " + e.data);
+          reject();
+        }
+      }
+    });
+
+    return p;
+  }
+
+  // We have the iframe register for its own scope so that this page is not
+  // holding any references when we GC.
+  function register() {
+    var p = listenForMessage();
+
+    frame = document.createElement("iframe");
+    document.body.appendChild(frame);
+    frame.src = "bug1151916_driver.html";
+
+    return p;
+  }
+
+  function unloadFrame() {
+    frame.src = "about:blank";
+    frame.remove();
+    frame = null;
+  }
+
+  function gc() {
+   return new Promise(function(resolve) {
+     SpecialPowers.exactGC(resolve);
+   });
+  }
+
+  function testCaches() {
+    var p = listenForMessage();
+
+    frame = document.createElement("iframe");
+    document.body.appendChild(frame);
+    frame.src = "bug1151916_driver.html";
+
+    return p;
+  }
+
+  function unregister() {
+    return navigator.serviceWorker.getRegistration("./bug1151916_driver.html").then(function(reg) {
+      ok(reg instanceof ServiceWorkerRegistration, "Must have valid registration.");
+      return reg.unregister();
+    });
+  }
+
+  function runTest() {
+     register()
+      .then(unloadFrame)
+      .then(gc)
+      .then(testCaches)
+      .then(unregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["dom.caches.enabled", true],
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_bug1240436.html b/dom/serviceworkers/test/test_bug1240436.html
new file mode 100644
index 0000000000..8b76ada6a8
--- /dev/null
+++ b/dom/serviceworkers/test/test_bug1240436.html
@@ -0,0 +1,34 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for encoding of service workers</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+  SimpleTest.waitForExplicitFinish();
+
+  function runTest() {
+    navigator.serviceWorker.register("bug1240436_worker.js")
+      .then(reg => reg.unregister())
+      .then(() => ok(true, "service worker register script succeed"))
+      .catch(err => ok(false, "service worker register script faled " + err))
+      .then(() => SimpleTest.finish());
+  }
+
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_bug1408734.html b/dom/serviceworkers/test/test_bug1408734.html
new file mode 100644
index 0000000000..27559e695f
--- /dev/null
+++ b/dom/serviceworkers/test/test_bug1408734.html
@@ -0,0 +1,52 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1408734</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="error_reporting_helpers.js"></script>
+  <script src="utils.js"></script>
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+// setup prefs
+add_task(() => {
+  return SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+  ]});
+});
+
+// test for bug 1408734
+add_task(async () => {
+  // register a service worker
+  let registration = await navigator.serviceWorker.register("fetch.js",
+                                                            {scope: "./"});
+  // wait for service worker be activated
+  await waitForState(registration.installing, "activated");
+
+  // get the ServiceWorkerRegistration we just register through GetRegistration
+  registration = await navigator.serviceWorker.getRegistration("./");
+  ok(registration, "should get the registration under scope './'");
+
+  // call unregister()
+  await registration.unregister();
+
+  // access registration.updateViaCache to trigger the bug
+  // we really care that we don't crash. In the future we will fix
+  is(registration.updateViaCache, "imports",
+     "registration.updateViaCache should work after unregister()");
+});
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_claim.html b/dom/serviceworkers/test/test_claim.html
new file mode 100644
index 0000000000..e72f1173e8
--- /dev/null
+++ b/dom/serviceworkers/test/test_claim.html
@@ -0,0 +1,171 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1130684 - Test service worker clients claim onactivate </title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+  var registration_1;
+  var registration_2;
+  var client;
+
+  function register_1() {
+    return navigator.serviceWorker.register("claim_worker_1.js",
+                                            { scope: "./" })
+      .then((swr) => registration_1 = swr);
+  }
+
+  function register_2() {
+    return navigator.serviceWorker.register("claim_worker_2.js",
+                                            { scope: "./claim_clients/client.html" })
+      .then((swr) => registration_2 = swr);
+  }
+
+  function unregister(reg) {
+    return reg.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    });
+  }
+
+  function createClient() {
+    var p = new Promise(function(res, rej) {
+      window.onmessage = function(e) {
+        if (e.data === "READY") {
+          res();
+        }
+      }
+    });
+
+    content = document.getElementById("content");
+    ok(content, "parent exists.");
+
+    client = document.createElement("iframe");
+    client.setAttribute('src', "claim_clients/client.html");
+    content.appendChild(client);
+
+    return p;
+  }
+
+  function testController() {
+    ok(navigator.serviceWorker.controller.scriptURL.match("claim_worker_1"),
+        "Controlling service worker has the correct url.");
+  }
+
+  function testClientWasClaimed(expected) {
+    var resolveClientMessage, resolveClientControllerChange;
+    var messageFromClient = new Promise(function(res, rej) {
+      resolveClientMessage = res;
+    });
+    var controllerChangeFromClient = new Promise(function(res, rej) {
+      resolveClientControllerChange = res;
+    });
+    window.onmessage = function(e) {
+      if (!e.data.event) {
+        ok(false, "Unknown message received: " + e.data);
+      }
+
+      if (e.data.event === "controllerchange") {
+        ok(e.data.controller,
+           "Client was claimed and received controllerchange event.");
+        resolveClientControllerChange();
+      }
+
+      if (e.data.event === "message") {
+        ok(e.data.data.resolve_value === undefined,
+            "Claim should resolve with undefined.");
+        ok(e.data.data.message === expected.message,
+           "Client received message from claiming worker.");
+        ok(e.data.data.match_count_before === expected.match_count_before,
+            "MatchAll clients count before claim should be " + expected.match_count_before);
+        ok(e.data.data.match_count_after === expected.match_count_after,
+            "MatchAll clients count after claim should be " + expected.match_count_after);
+        resolveClientMessage();
+      }
+    }
+
+    return Promise.all([messageFromClient, controllerChangeFromClient])
+      .then(() => window.onmessage = null);
+  }
+
+  function testClaimFirstWorker() {
+    // wait for the worker to control us
+    var controllerChange = new Promise(function(res, rej) {
+      navigator.serviceWorker.oncontrollerchange = function(e) {
+        ok(true, "controller changed event received.");
+        res();
+      };
+    });
+
+    var messageFromWorker = new Promise(function(res, rej) {
+      navigator.serviceWorker.onmessage = function(e) {
+        ok(e.data.resolve_value === undefined,
+            "Claim should resolve with undefined.");
+        ok(e.data.message === "claim_worker_1",
+            "Received message from claiming worker.");
+        ok(e.data.match_count_before === 0,
+            "Worker doesn't control any client before claim.");
+        ok(e.data.match_count_after === 2, "Worker should claim 2 clients.");
+        res();
+      }
+    });
+
+    var clientClaim = testClientWasClaimed({
+      message: "claim_worker_1",
+      match_count_before: 0,
+      match_count_after: 2
+    });
+
+    return Promise.all([controllerChange, messageFromWorker, clientClaim])
+      .then(testController);
+  }
+
+  function testClaimSecondWorker() {
+    navigator.serviceWorker.oncontrollerchange = function(e) {
+      ok(false, "Claim_worker_2 shouldn't claim this window.");
+    }
+
+    navigator.serviceWorker.onmessage = function(e) {
+      ok(false, "Claim_worker_2 shouldn't claim this window.");
+    }
+
+    var clientClaim = testClientWasClaimed({
+      message: "claim_worker_2",
+      match_count_before: 0,
+      match_count_after: 1
+    });
+
+    return clientClaim.then(testController);
+  }
+
+  function runTest() {
+    createClient()
+      .then(register_1)
+      .then(testClaimFirstWorker)
+      .then(register_2)
+      .then(testClaimSecondWorker)
+      .then(function() { return unregister(registration_1); })
+      .then(function() { return unregister(registration_2); })
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_claim_oninstall.html b/dom/serviceworkers/test/test_claim_oninstall.html
new file mode 100644
index 0000000000..54933405ce
--- /dev/null
+++ b/dom/serviceworkers/test/test_claim_oninstall.html
@@ -0,0 +1,77 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1130684 - Test service worker clients.claim oninstall</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+  var registration;
+
+  function register() {
+    return navigator.serviceWorker.register("claim_oninstall_worker.js",
+                                            { scope: "./" })
+      .then((swr) => registration = swr);
+  }
+
+
+  function unregister() {
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    });
+  }
+
+  function testClaim() {
+    ok(registration.installing, "Worker should be in installing state");
+
+    navigator.serviceWorker.oncontrollerchange = function() {
+      ok(false, "Claim should not succeed when the worker is not active.");
+    }
+
+    var p = new Promise(function(res, rej) {
+      var worker = registration.installing;
+      worker.onstatechange = function(e) {
+        if (worker.state === 'installed') {
+          is(worker, registration.waiting, "Worker should be in waiting state");
+        } else if (worker.state === 'activated') {
+          // The worker will become active only if claim will reject inside the
+          // install handler.
+          is(worker, registration.active,
+             "Claim should reject if the worker is not active");
+          ok(navigator.serviceWorker.controller === null, "Client is not controlled.");
+          e.target.onstatechange = null;
+          res();
+        }
+      }
+    });
+
+    return p;
+  }
+
+  function runTest() {
+    register()
+      .then(testClaim)
+      .then(unregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_controller.html b/dom/serviceworkers/test/test_controller.html
new file mode 100644
index 0000000000..c0e220a36e
--- /dev/null
+++ b/dom/serviceworkers/test/test_controller.html
@@ -0,0 +1,83 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1002570 - test controller instance.</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+
+  var content;
+  var iframe;
+  var registration;
+
+  function simpleRegister() {
+    // We use the control scope for the less specific registration. The window will register a worker on controller/
+    return navigator.serviceWorker.register("worker.js", { scope: "./control" })
+      .then(swr => waitForState(swr.installing, 'activated', swr))
+      .then(swr => registration = swr);
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      dump("Unregistering the SW failed: " + e + "\n");
+    });
+  }
+
+  function testController() {
+    var p = new Promise(function(resolve, reject) {
+      window.onmessage = function(e) {
+        if (e.data.status == "ok") {
+          ok(e.data.result, e.data.message);
+        } else if (e.data.status == "done") {
+          window.onmessage = null;
+          content.removeChild(iframe);
+          resolve();
+        }
+      }
+    });
+
+    content = document.getElementById("content");
+    ok(content, "Parent exists.");
+
+    iframe = document.createElement("iframe");
+    iframe.setAttribute('src', "controller/index.html");
+    content.appendChild(iframe);
+
+    return p;
+  }
+
+  // This document just flips the prefs and opens the iframe for the actual test.
+  function runTest() {
+    simpleRegister()
+      .then(testController)
+      .then(unregister)
+      .then(function() {
+        SimpleTest.finish();
+      }).catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+        SimpleTest.finish();
+      });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_cookie_fetch.html b/dom/serviceworkers/test/test_cookie_fetch.html
new file mode 100644
index 0000000000..8c4324c759
--- /dev/null
+++ b/dom/serviceworkers/test/test_cookie_fetch.html
@@ -0,0 +1,64 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1331680 - test access to cookies in the documents synthesized from service worker responses</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/cookie/register.html";
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        // Remove the iframe and recreate a new one to ensure that any traces
+        // of the cookies have been removed from the child process.
+        iframe.remove();
+        iframe = document.createElement("iframe");
+        document.getElementById("content").appendChild(iframe);
+
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/cookie/synth.html";
+      } else if (e.data.status == "done") {
+        // Note, we can't do an exact is() comparison here since other
+        // tests can leave cookies on the domain.
+        ok(e.data.cookie.includes("foo=bar"),
+           "The synthesized document has access to its cookies");
+
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/cookie/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        window.onmessage = null;
+        ok(true, "Test finished successfully");
+        SpecialPowers.clearUserPref("network.cookie.sameSite.laxByDefault");
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      // Bug 1617611: Fix all the tests broken by "cookies SameSite=lax by default"
+      ["network.cookie.sameSite.laxByDefault", false],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_cross_origin_url_after_redirect.html b/dom/serviceworkers/test/test_cross_origin_url_after_redirect.html
new file mode 100644
index 0000000000..bfd4f700be
--- /dev/null
+++ b/dom/serviceworkers/test/test_cross_origin_url_after_redirect.html
@@ -0,0 +1,50 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test access to a cross origin Request.url property from a service worker for a redirected intercepted iframe</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "/tests/dom/serviceworkers/test/fetch/requesturl/register.html";
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        iframe.src = "/tests/dom/serviceworkers/test/fetch/requesturl/index.html";
+      } else if (e.data.status == "done") {
+        iframe.src = "/tests/dom/serviceworkers/test/fetch/requesturl/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        window.onmessage = null;
+        ok(true, "Test finished successfully");
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_csp_upgrade-insecure_intercept.html b/dom/serviceworkers/test/test_csp_upgrade-insecure_intercept.html
new file mode 100644
index 0000000000..b5ddbb97b6
--- /dev/null
+++ b/dom/serviceworkers/test/test_csp_upgrade-insecure_intercept.html
@@ -0,0 +1,55 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test that a CSP upgraded request can be intercepted by a service worker</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/upgrade-insecure/register.html";
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/upgrade-insecure/embedder.html";
+      } else if (e.data.status == "protocol") {
+        is(e.data.data, "https:", "Correct protocol expected");
+      } else if (e.data.status == "image") {
+        is(e.data.data, 40, "The image request was upgraded before interception");
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/upgrade-insecure/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        window.onmessage = null;
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      // This is needed so that we can test upgrading a non-secure load inside an https iframe.
+      ["security.mixed_content.block_active_content", false],
+      ["security.mixed_content.block_display_content", false],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_devtools_bypass_serviceworker.html b/dom/serviceworkers/test/test_devtools_bypass_serviceworker.html
new file mode 100644
index 0000000000..09c05d557a
--- /dev/null
+++ b/dom/serviceworkers/test/test_devtools_bypass_serviceworker.html
@@ -0,0 +1,107 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title> Verify devtools can utilize nsIChannel::LOAD_BYPASS_SERVICE_WORKER to bypass the service worker </title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="error_reporting_helpers.js"></script>
+  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+  <meta http-equiv="Content-type" content="text/html;charset=UTF-8">
+</head>
+<body>
+<div id="content" style="display: none"></div>
+<script src="utils.js"></script>
+<script type="text/javascript">
+"use strict";
+
+async function testBypassSW () {
+  let Ci = SpecialPowers.Ci;
+
+  // Bypass SW imitates the "Disable Cache" option in dev-tools.
+  // Note: if we put the setter/getter into dev-tools, we should take care of
+  // the implementation of enabling/disabling cache since it just overwrite the
+  // defaultLoadFlags of docShell.
+  function setBypassServiceWorker(aDocShell, aBypass) {
+    if (aBypass) {
+      aDocShell.defaultLoadFlags |= Ci.nsIChannel.LOAD_BYPASS_SERVICE_WORKER;
+      return;
+    }
+
+    aDocShell.defaultLoadFlags &= ~Ci.nsIChannel.LOAD_BYPASS_SERVICE_WORKER;
+  }
+
+  function getBypassServiceWorker(aDocShell) {
+    return !!(aDocShell.defaultLoadFlags &
+              Ci.nsIChannel.LOAD_BYPASS_SERVICE_WORKER);
+  }
+
+  async function fetchFakeDocAndCheckIfIntercepted(aWindow) {
+    const fakeDoc = "fake.html";
+
+    // Note: The fetching document doesn't exist, so the expected status of the
+    //       repsonse is 404 unless the request is hijacked.
+    let response = await aWindow.fetch(fakeDoc);
+    if (response.status === 404) {
+      return false;
+    } else if (!response.ok) {
+      throw(response.statusText);
+    }
+
+    let text = await response.text();
+    if (text.includes("Hello")) {
+      // Intercepted
+      return true;
+    }
+
+    throw("Unexpected error");
+    return;
+  }
+
+  let docShell = SpecialPowers.wrap(window).docShell;
+
+  info("Test 1: Enable bypass service worker for the docShell");
+
+  setBypassServiceWorker(docShell, true);
+  ok(getBypassServiceWorker(docShell),
+     "The loadFlags in docShell does bypass the serviceWorker by default");
+
+  let intercepted = await fetchFakeDocAndCheckIfIntercepted(window);
+  ok(!intercepted,
+     "The fetched document wasn't intercepted by the serviceWorker");
+
+  info("Test 2: Disable the bypass service worker for the docShell");
+
+  setBypassServiceWorker(docShell, false);
+  ok(!getBypassServiceWorker(docShell),
+     "The loadFlags in docShell doesn't bypass the serviceWorker by default");
+
+  intercepted = await fetchFakeDocAndCheckIfIntercepted(window);
+  ok(intercepted,
+     "The fetched document was intercepted by the serviceWorker");
+}
+
+// (This doesn't really need to be its own task, but it allows the actual test
+// case to be self-contained.)
+add_task(function setupPrefs() {
+  return SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+  ]});
+});
+
+add_task(async function test_bypassServiceWorker() {
+  const swURL = "fetch.js";
+  let registration = await navigator.serviceWorker.register(swURL);
+  await waitForState(registration.installing, 'activated');
+
+  try {
+    await testBypassSW();
+  } catch (e) {
+    ok(false, "Reason:" + e);
+  }
+
+  await registration.unregister();
+});
+
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_devtools_track_serviceworker_time.html b/dom/serviceworkers/test/test_devtools_track_serviceworker_time.html
new file mode 100644
index 0000000000..ac27ebcd33
--- /dev/null
+++ b/dom/serviceworkers/test/test_devtools_track_serviceworker_time.html
@@ -0,0 +1,236 @@
+<html>
+<head>
+  <title>Bug 1251238 - track service worker install time</title>
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
+</head>
+<iframe id="iframe"></iframe>
+<body>
+
+<script type="text/javascript">
+
+const State = {
+  BYTECHECK: -1,
+  PARSED: Ci.nsIServiceWorkerInfo.STATE_PARSED,
+  INSTALLING: Ci.nsIServiceWorkerInfo.STATE_INSTALLING,
+  INSTALLED: Ci.nsIServiceWorkerInfo.STATE_INSTALLED,
+  ACTIVATING: Ci.nsIServiceWorkerInfo.STATE_ACTIVATING,
+  ACTIVATED: Ci.nsIServiceWorkerInfo.STATE_ACTIVATED,
+  REDUNDANT: Ci.nsIServiceWorkerInfo.STATE_REDUNDANT
+};
+let swm = Cc["@mozilla.org/serviceworkers/manager;1"].
+          getService(Ci.nsIServiceWorkerManager);
+
+let EXAMPLE_URL = "https://example.com/chrome/dom/serviceworkers/test/";
+
+let swrlistener = null;
+let registrationInfo = null;
+
+// Use it to keep the sw after unregistration.
+let astrayServiceWorkerInfo = null;
+
+let expectedResults = [
+  {
+    // Speacial state for verifying update since we will do the byte-check
+    // first.
+    state: State.BYTECHECK, installedTimeRecorded: false,
+    activatedTimeRecorded: false, redundantTimeRecorded: false
+  },
+  {
+    state: State.PARSED, installedTimeRecorded: false,
+    activatedTimeRecorded: false, redundantTimeRecorded: false
+  },
+  {
+    state: State.INSTALLING, installedTimeRecorded: false,
+    activatedTimeRecorded: false, redundantTimeRecorded: false
+  },
+  {
+    state: State.INSTALLED, installedTimeRecorded: true,
+    activatedTimeRecorded: false, redundantTimeRecorded: false
+  },
+  {
+    state: State.ACTIVATING, installedTimeRecorded: true,
+    activatedTimeRecorded: false, redundantTimeRecorded: false
+  },
+  {
+    state: State.ACTIVATED, installedTimeRecorded: true,
+    activatedTimeRecorded: true, redundantTimeRecorded: false
+  },
+
+  // When first being marked as unregistered (but the worker can remain
+  // actively controlling pages)
+  {
+    state: State.ACTIVATED, installedTimeRecorded: true,
+    activatedTimeRecorded: true, redundantTimeRecorded: false
+  },
+  // When cleared (when idle)
+  {
+    state: State.REDUNDANT, installedTimeRecorded: true,
+    activatedTimeRecorded: true, redundantTimeRecorded: true
+  },
+];
+
+function waitForRegister(aScope, aCallback) {
+  return new Promise(function (aResolve) {
+    let listener = {
+      onRegister (aRegistration) {
+        if (aRegistration.scope !== aScope) {
+          return;
+        }
+        swm.removeListener(listener);
+        registrationInfo = aRegistration;
+        aResolve();
+      }
+    };
+    swm.addListener(listener);
+  });
+}
+
+function waitForUnregister(aScope) {
+  return new Promise(function (aResolve) {
+    let listener = {
+      onUnregister (aRegistration) {
+        if (aRegistration.scope !== aScope) {
+          return;
+        }
+        swm.removeListener(listener);
+        aResolve();
+      }
+    };
+    swm.addListener(listener);
+  });
+}
+
+function register() {
+  info("Register a ServiceWorker in the iframe");
+
+  let iframe = document.querySelector("iframe");
+  iframe.src = EXAMPLE_URL + "serviceworkerinfo_iframe.html";
+
+  let promise = new Promise(function(aResolve) {
+    iframe.onload = aResolve;
+  });
+
+  return promise.then(function() {
+    iframe.contentWindow.postMessage("register", "*");
+    return waitForRegister(EXAMPLE_URL);
+  })
+}
+
+function verifyServiceWorkTime(aSWRInfo, resolve) {
+  let expectedResult = expectedResults.shift();
+  ok(!!expectedResult, "We should be able to get test from expectedResults");
+
+  info("Check the ServiceWorker time in its state is " + expectedResult.state);
+
+  // Get serviceWorkerInfo from swrInfo or get the astray one which we hold.
+  let swInfo = aSWRInfo.evaluatingWorker ||
+               aSWRInfo.installingWorker ||
+               aSWRInfo.waitingWorker ||
+               aSWRInfo.activeWorker ||
+               astrayServiceWorkerInfo;
+
+  ok(!!aSWRInfo.lastUpdateTime,
+     "We should do the byte-check and update the update timeStamp");
+
+  if (!swInfo) {
+    is(expectedResult.state, State.BYTECHECK,
+       "We shouldn't get sw when we are notified for first time updating");
+    return;
+  }
+
+  ok(!!swInfo);
+
+  is(expectedResult.state, swInfo.state,
+     "The service worker's state should be " + swInfo.state + ", but got " +
+     expectedResult.state);
+
+  is(expectedResult.installedTimeRecorded, !!swInfo.installedTime,
+     "InstalledTime should be recorded when their state is greater than " +
+     "INSTALLING");
+
+  is(expectedResult.activatedTimeRecorded, !!swInfo.activatedTime,
+     "ActivatedTime should be recorded when their state is greater than " +
+     "ACTIVATING");
+
+  is(expectedResult.redundantTimeRecorded, !!swInfo.redundantTime,
+     "RedundantTime should be recorded when their state is REDUNDANT");
+
+  // We need to hold sw to avoid losing it since we'll unregister the swr later.
+  if (expectedResult.state === State.ACTIVATED) {
+    astrayServiceWorkerInfo = aSWRInfo.activeWorker;
+
+    // Resolve the promise for testServiceWorkerInfo after sw is activated.
+    resolve();
+  }
+}
+
+function testServiceWorkerInfo() {
+  info("Listen onChange event and verify service worker's information");
+
+  let promise_resolve;
+  let promise = new Promise(aResolve => promise_resolve = aResolve);
+
+  swrlistener = {
+    onChange: () => {
+      verifyServiceWorkTime(registrationInfo, promise_resolve);
+    }
+  };
+
+  registrationInfo.addListener(swrlistener);
+
+  return promise;
+}
+
+async function testHttpCacheUpdateTime() {
+  let iframe = document.querySelector("iframe");
+  let reg = await iframe.contentWindow.navigator.serviceWorker.getRegistration();
+  let lastUpdateTime = registrationInfo.lastUpdateTime;
+  await reg.update();
+  is(lastUpdateTime, registrationInfo.lastUpdateTime,
+     "The update time should not change when SW script is read from http cache.");
+}
+
+function unregister() {
+  info("Unregister the ServiceWorker");
+
+  let iframe = document.querySelector("iframe");
+  iframe.contentWindow.postMessage("unregister", "*");
+  return waitForUnregister(EXAMPLE_URL);
+}
+
+function cleanAll() {
+  return new Promise((aResolve, aReject) => {
+    is(expectedResults.length, 0, "All the tests should be tested");
+
+    registrationInfo.removeListener(swrlistener);
+
+    swm = null;
+    swrlistener = null;
+    registrationInfo = null;
+    astrayServiceWorkerInfo = null;
+    aResolve();
+  })
+}
+
+function runTest() {
+  return Promise.resolve()
+    .then(register)
+    .then(testServiceWorkerInfo)
+    .then(testHttpCacheUpdateTime)
+    .then(unregister)
+    .catch(aError => ok(false, "Some test failed with error " + aError))
+    .then(cleanAll)
+    .then(SimpleTest.finish);
+}
+
+SimpleTest.waitForExplicitFinish();
+SpecialPowers.pushPrefEnv({"set": [
+  ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+  ["dom.serviceWorkers.enabled", true],
+  ["dom.serviceWorkers.testing.enabled", true]
+]}, runTest);
+
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_empty_serviceworker.html b/dom/serviceworkers/test/test_empty_serviceworker.html
new file mode 100644
index 0000000000..00b77939f8
--- /dev/null
+++ b/dom/serviceworkers/test/test_empty_serviceworker.html
@@ -0,0 +1,46 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test that registering an empty service worker works</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  function runTest() {
+    navigator.serviceWorker.ready.then(done);
+    navigator.serviceWorker.register("empty.js", {scope: "."});
+  }
+
+  function done(registration) {
+    ok(registration.waiting || registration.active, "registration worked");
+    registration.unregister().then(function(success) {
+      ok(success, "unregister worked");
+      SimpleTest.finish();
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+      SimpleTest.finish();
+    });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true]
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_enabled_pref.html b/dom/serviceworkers/test/test_enabled_pref.html
new file mode 100644
index 0000000000..b821fdaf5a
--- /dev/null
+++ b/dom/serviceworkers/test/test_enabled_pref.html
@@ -0,0 +1,55 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1645054 - test dom.serviceWorkers.enabled preference</title>
+</head>
+<script src="/tests/SimpleTest/SimpleTest.js"></script>
+<script src="utils.js"></script>
+<script>
+
+  function create_iframe(url) {
+    return new Promise(function(res) {
+      iframe = document.createElement('iframe');
+      iframe.src = url;
+      iframe.onload = function() { res(iframe) }
+      document.body.appendChild(iframe);
+    });
+  }
+
+  async function do_fetch(pref) {
+    await SpecialPowers.pushPrefEnv({ set: [pref] });
+
+    let iframe = await create_iframe("./pref/fetch_nonexistent_file.html");
+    let status = await iframe.contentWindow.fetch_status();
+
+    await SpecialPowers.popPrefEnv();
+    return status;
+  }
+
+  add_task(async () => {
+    await SpecialPowers.pushPrefEnv({
+      set: [['dom.serviceWorkers.testing.enabled', true]]
+    });
+
+    let reg = await navigator.serviceWorker.register(
+      'pref/intercept_nonexistent_file_sw.js');
+    await waitForState(reg.installing, 'activated');
+
+    let status;
+
+    status = await do_fetch(['dom.serviceWorkers.enabled', true]);
+    is(status, 200, 'SW enabled');
+
+    status = await do_fetch(['dom.serviceWorkers.enabled', false]);
+    is(status, 404, 'SW disabled');
+
+    status = await do_fetch(['dom.serviceWorkers.enabled', true]);
+    is(status, 200, 'SW enabled again');
+
+    await reg.unregister();
+  });
+
+</script>
+<body>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_error_reporting.html b/dom/serviceworkers/test/test_error_reporting.html
new file mode 100644
index 0000000000..7c2d56fb9e
--- /dev/null
+++ b/dom/serviceworkers/test/test_error_reporting.html
@@ -0,0 +1,241 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test Error Reporting of Service Worker Failures</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="error_reporting_helpers.js"></script>
+  <script src="utils.js"></script>
+  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+  <meta http-equiv="Content-type" content="text/html;charset=UTF-8">
+</head>
+<body>
+
+<script type="text/javascript">
+"use strict";
+
+/**
+ * Test that a bunch of service worker coding errors and failure modes that
+ * might otherwise be hard to diagnose are surfaced as console error messages.
+ * The driving use-case is minimizing cursing from a developer looking at a
+ * document in Firefox testing a page that involves service workers.
+ *
+ * This test assumes that errors will be reported via
+ * ServiceWorkerManager::ReportToAllClients and that that method is reliable and
+ * tested via some other file.
+ **/
+
+add_task(function setupPrefs() {
+  return SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["dom.caches.testing.enabled", true],
+  ]});
+});
+
+/**
+ * Ensure an error is logged during the initial registration of a SW when a 404
+ * is received.
+ */
+add_task(async function register_404() {
+  // Start monitoring for the error
+  let expectedMessage = expect_console_message(
+    "ServiceWorkerRegisterNetworkError",
+    [make_absolute_url("network_error/"), "404", make_absolute_url("404.js")]);
+
+  // Register, generating the 404 error.  This will reject with a TypeError
+  // which we need to consume so it doesn't get thrown at our generator.
+  await navigator.serviceWorker.register("404.js", { scope: "network_error/" })
+    .then(
+      () => { ok(false, "should have rejected"); },
+      (e) => { ok(e.name === "TypeError", "404 failed as expected"); });
+
+  await wait_for_expected_message(expectedMessage);
+});
+
+/**
+ * Ensure an error is logged when the service worker is being served with a
+ * MIME type of text/plain rather than a JS type.
+ */
+add_task(async function register_bad_mime_type() {
+  let expectedMessage = expect_console_message(
+    "ServiceWorkerRegisterMimeTypeError2",
+    [make_absolute_url("bad_mime_type/"), "text/plain",
+     make_absolute_url("sw_bad_mime_type.js")]);
+
+  // consume the expected rejection so it doesn't get thrown at us.
+  await navigator.serviceWorker.register("sw_bad_mime_type.js", { scope: "bad_mime_type/" })
+    .then(
+      () => { ok(false, "should have rejected"); },
+      (e) => { ok(e.name === "SecurityError", "bad MIME type failed as expected"); });
+
+  await wait_for_expected_message(expectedMessage);
+});
+
+async function notAllowStorageAccess() {
+  throw new Error("Storage permissions should be used when bug 1774860 overhauls this test.");
+}
+
+async function allowStorageAccess() {
+  throw new Error("Storage permissions should be used when bug 1774860 overhauls this test.");
+}
+
+/**
+ * Ensure an error is logged when the storage is not allowed and the content
+ * script is trying to register a service worker.
+ */
+add_task(async function register_storage_error() {
+  let expectedMessage = expect_console_message(
+    "ServiceWorkerRegisterStorageError",
+    [make_absolute_url("storage_not_allow/")]);
+
+  await notAllowStorageAccess();
+
+  // consume the expected rejection so it doesn't get thrown at us.
+  await navigator.serviceWorker.register("sw_storage_not_allow.js",
+                                         { scope: "storage_not_allow/" })
+    .then(
+      () => { ok(false, "should have rejected"); },
+      (e) => { ok(e.name === "SecurityError",
+                  "storage access failed as expected."); });
+
+  await wait_for_expected_message(expectedMessage);
+
+  await allowStorageAccess();
+});
+
+/**
+ * Ensure an error is logged when the storage is not allowed and the content
+ * script is trying to get the service worker registration.
+ */
+add_task(async function get_registration_storage_error() {
+  let expectedMessage =
+    expect_console_message("ServiceWorkerGetRegistrationStorageError", []);
+
+  await notAllowStorageAccess();
+
+  // consume the expected rejection so it doesn't get thrown at us.
+  await navigator.serviceWorker.getRegistration()
+    .then(
+      () => { ok(false, "should have rejected"); },
+      (e) => { ok(e.name === "SecurityError",
+                  "storage access failed as expected."); });
+
+  await wait_for_expected_message(expectedMessage);
+
+  await allowStorageAccess();
+});
+
+/**
+ * Ensure an error is logged when the storage is not allowed and the content
+ * script is trying to get the service worker registrations.
+ */
+add_task(async function get_registrations_storage_error() {
+  let expectedMessage =
+    expect_console_message("ServiceWorkerGetRegistrationStorageError", []);
+
+  await notAllowStorageAccess();
+
+  // consume the expected rejection so it doesn't get thrown at us.
+  await navigator.serviceWorker.getRegistrations()
+    .then(
+      () => { ok(false, "should have rejected"); },
+      (e) => { ok(e.name === "SecurityError",
+                  "storage access failed as expected."); });
+
+  await wait_for_expected_message(expectedMessage);
+
+  await allowStorageAccess();
+});
+
+/**
+ * Ensure an error is logged when the storage is not allowed and the content
+ * script is trying to post a message to the service worker.
+ */
+add_task(async function postMessage_storage_error() {
+  let expectedMessage = expect_console_message(
+    "ServiceWorkerPostMessageStorageError",
+    [make_absolute_url("storage_not_allow/")]);
+
+  let registration;
+  // consume the expected rejection so it doesn't get thrown at us.
+  await navigator.serviceWorker.register("sw_storage_not_allow.js",
+                                         { scope: "storage_not_allow/" })
+    .then(reg => { registration = reg; })
+    .then(() => notAllowStorageAccess())
+    .then(() => registration.installing ||
+                registration.waiting ||
+                registration.active)
+    .then(worker =>  worker.postMessage('ha'))
+    .then(
+      () => { ok(false, "should have rejected"); },
+      (e) => { ok(e.name === "SecurityError",
+                  "storage access failed as expected."); });
+
+  await wait_for_expected_message(expectedMessage);
+
+  await registration.unregister();
+  await allowStorageAccess();
+});
+
+/**
+ * Ensure an error is logged when the storage is not allowed and the service
+ * worker is trying to get its client.
+ */
+add_task(async function get_client_storage_error() {
+  let expectedMessage =
+    expect_console_message("ServiceWorkerGetClientStorageError", []);
+
+  await SpecialPowers.pushPrefEnv({"set": [
+    // Make the test pass the IsOriginPotentiallyTrustworthy.
+    ["dom.securecontext.allowlist", "mochi.test"]
+  ]});
+
+  let registration;
+  // consume the expected rejection so it doesn't get thrown at us.
+  await navigator.serviceWorker.register("sw_storage_not_allow.js",
+                                         { scope: "test_error_reporting.html" })
+    .then(reg => {
+      registration = reg;
+      return waitForState(registration.installing, "activated");
+    })
+    // Get the client's ID in the stage 1
+    .then(() => fetch("getClient-stage1"))
+    .then(() => notAllowStorageAccess())
+    // Trigger the clients.get() in the stage 2
+    .then(() => fetch("getClient-stage2"))
+    .catch(e => ok(false, "fail due to:" + e));
+
+  await wait_for_expected_message(expectedMessage);
+
+  await registration.unregister();
+  await allowStorageAccess();
+});
+
+/**
+ * Ensure an error is logged when the storage is not allowed and the service
+ * worker is trying to get its clients.
+ */
+add_task(async function get_clients_storage_error() {
+  let expectedMessage =
+    expect_console_message("ServiceWorkerGetClientStorageError", []);
+
+  let registration;
+  // consume the expected rejection so it doesn't get thrown at us.
+  await navigator.serviceWorker.register("sw_storage_not_allow.js",
+                                         { scope: "test_error_reporting.html" })
+    .then(reg => {
+      registration = reg;
+      return waitForState(registration.installing, "activated");
+    })
+    .then(() => notAllowStorageAccess())
+    .then(() => fetch("getClients"))
+    .catch(e => ok(false, "fail due to:" + e));
+
+  await wait_for_expected_message(expectedMessage);
+
+  await registration.unregister();
+  await allowStorageAccess();
+});
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_escapedSlashes.html b/dom/serviceworkers/test/test_escapedSlashes.html
new file mode 100644
index 0000000000..001c660242
--- /dev/null
+++ b/dom/serviceworkers/test/test_escapedSlashes.html
@@ -0,0 +1,102 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for escaped slashes in navigator.serviceWorker.register</title>
+  <script type="text/javascript" src="http://mochi.test:8888/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="http://mochi.test:8888/tests/SimpleTest/test.css" />
+  <base href="https://mozilla.org/">
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+var tests = [
+  { status:  true,
+    scriptURL: "a.js?foo%2fbar",
+    scopeURL: null },
+  { status:  false,
+    scriptURL: "foo%2fbar",
+    scopeURL: null },
+  { status:  true,
+    scriptURL: "a.js?foo%2Fbar",
+    scopeURL: null },
+  { status:  false,
+    scriptURL: "foo%2Fbar",
+    scopeURL: null },
+  { status:  true,
+    scriptURL: "a.js?foo%5cbar",
+    scopeURL: null },
+  { status:  false,
+    scriptURL: "foo%5cbar",
+    scopeURL: null },
+  { status:  true,
+    scriptURL: "a.js?foo%2Cbar",
+    scopeURL: null },
+  { status:  false,
+    scriptURL: "foo%5Cbar",
+    scopeURL: null },
+  { status:  true,
+    scriptURL: "ok.js",
+    scopeURL: "/scope?foo%2fbar"},
+  { status:  false,
+    scriptURL: "ok.js",
+    scopeURL: "/foo%2fbar"},
+  { status:  true,
+    scriptURL: "ok.js",
+    scopeURL: "/scope?foo%2Fbar"},
+  { status:  false,
+    scriptURL: "ok.js",
+    scopeURL: "foo%2Fbar"},
+  { status:  true,
+    scriptURL: "ok.js",
+    scopeURL: "/scope?foo%5cbar"},
+  { status:  false,
+    scriptURL: "ok.js",
+    scopeURL: "foo%5cbar"},
+  { status:  true,
+    scriptURL: "ok.js",
+    scopeURL: "/scope?foo%5Cbar"},
+  { status:  false,
+    scriptURL: "ok.js",
+    scopeURL: "foo%5Cbar"},
+];
+
+function runTest() {
+  if (!tests.length) {
+    SimpleTest.finish();
+    return;
+  }
+
+  var test = tests.shift();
+  navigator.serviceWorker.register(test.scriptURL, test.scopeURL)
+    .then(reg => {
+      ok(false, "Register should fail");
+    }, err => {
+      if (!test.status) {
+        is(err.name, "TypeError", "Registration should fail with TypeError");
+      } else {
+        ok(test.status, "Register should fail");
+      }
+    })
+    .then(runTest);
+}
+
+SimpleTest.waitForExplicitFinish();
+onload = function() {
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["dom.serviceWorkers.enabled", true],
+  ]}, runTest);
+};
+
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_eval_allowed.html b/dom/serviceworkers/test/test_eval_allowed.html
new file mode 100644
index 0000000000..5d6d7a7d9c
--- /dev/null
+++ b/dom/serviceworkers/test/test_eval_allowed.html
@@ -0,0 +1,51 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1160458 - CSP activated by default in Service Workers</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+  function register() {
+    return navigator.serviceWorker.register("eval_worker.js");
+  }
+
+  function runTest() {
+    try {
+      eval("1");
+      ok(false, "should throw");
+    }
+    catch (ex) {
+      ok(true, "did throw");
+    }
+    register()
+      .then(function(swr) {
+        ok(true, "eval restriction didn't get inherited");
+        swr.unregister()
+          .then(function() {
+            SimpleTest.finish();
+          });
+      }).catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+        SimpleTest.finish();
+      });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_eval_allowed.html^headers^ b/dom/serviceworkers/test/test_eval_allowed.html^headers^
new file mode 100644
index 0000000000..51ffaa71dd
--- /dev/null
+++ b/dom/serviceworkers/test/test_eval_allowed.html^headers^
@@ -0,0 +1 @@
+Content-Security-Policy: "default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self'"
diff --git a/dom/serviceworkers/test/test_event_listener_leaks.html b/dom/serviceworkers/test/test_event_listener_leaks.html
new file mode 100644
index 0000000000..33ffeb44c4
--- /dev/null
+++ b/dom/serviceworkers/test/test_event_listener_leaks.html
@@ -0,0 +1,63 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1447871 - Test some service worker leak conditions</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="utils.js"></script>
+  <script type="text/javascript" src="/tests/dom/events/test/event_leak_utils.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<script class="testbody" type="text/javascript">
+
+const scope = new URL("empty.html?leak_tests", location).href;
+const script = new URL("empty.js", location).href;
+
+// Manipulate service worker DOM objects in the frame's context.
+// Its important here that we create a listener callback from
+// the DOM objects back to the frame's global in order to
+// exercise the leak condition.
+async function useServiceWorker(contentWindow) {
+  contentWindow.navigator.serviceWorker.oncontrollerchange = _ => {
+    contentWindow.controlledChangeCount += 1;
+  };
+  let reg = await contentWindow.navigator.serviceWorker.getRegistration(scope);
+  reg.onupdatefound = _ => {
+    contentWindow.updateCount += 1;
+  };
+  reg.active.onstatechange = _ => {
+    contentWindow.stateChangeCount += 1;
+  };
+}
+
+async function runTest() {
+  await SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]});
+
+  let reg = await navigator.serviceWorker.register(script, { scope });
+  await waitForState(reg.installing, "activated");
+
+  try {
+    await checkForEventListenerLeaks("ServiceWorker", useServiceWorker);
+  } catch (e) {
+    ok(false, e);
+  } finally {
+    await reg.unregister();
+    SimpleTest.finish();
+  }
+}
+
+SimpleTest.waitForExplicitFinish();
+addEventListener("load", runTest, { once: true });
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_eventsource_intercept.html b/dom/serviceworkers/test/test_eventsource_intercept.html
new file mode 100644
index 0000000000..b76c0d1d1a
--- /dev/null
+++ b/dom/serviceworkers/test/test_eventsource_intercept.html
@@ -0,0 +1,103 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1182103 - Test EventSource scenarios with fetch interception</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  function testFrame(src) {
+    return new Promise(function(resolve, reject) {
+      var iframe = document.createElement("iframe");
+      iframe.src = src;
+      window.onmessage = function(e) {
+        if (e.data.status == "callback") {
+          switch(e.data.data) {
+            case "ok":
+              ok(e.data.condition, e.data.message);
+              break;
+            case "ready":
+              iframe.contentWindow.postMessage({status: "callback", data: "eventsource"}, "*");
+              break;
+            case "done":
+              window.onmessage = null;
+              iframe.src = "about:blank";
+              document.body.removeChild(iframe);
+              iframe = null;
+              resolve();
+              break;
+            default:
+              ok(false, "Something went wrong");
+              break;
+          }
+        } else {
+          ok(false, "Something went wrong");
+        }
+      };
+      document.body.appendChild(iframe);
+    });
+  }
+
+  function runTest() {
+      Promise.resolve()
+        .then(() => {
+        info("Going to intercept and test opaque responses");
+        return testFrame("eventsource/eventsource_register_worker.html" +
+                         "?script=eventsource_opaque_response_intercept_worker.js");
+      })
+      .then(() => {
+        return testFrame("eventsource/eventsource_opaque_response.html");
+      })
+      .then(() => {
+        info("Going to intercept and test cors responses");
+        return testFrame("eventsource/eventsource_register_worker.html" +
+                         "?script=eventsource_cors_response_intercept_worker.js");
+      })
+      .then(() => {
+        return testFrame("eventsource/eventsource_cors_response.html");
+      })
+      .then(() => {
+        info("Going to intercept and test synthetic responses");
+        return testFrame("eventsource/eventsource_register_worker.html" +
+                         "?script=eventsource_synthetic_response_intercept_worker.js");
+      })
+      .then(() => {
+        return testFrame("eventsource/eventsource_synthetic_response.html");
+      })
+      .then(() => {
+        info("Going to intercept and test mixed content cors responses");
+        return testFrame("https://example.com/tests/dom/serviceworkers/test/" +
+                         "eventsource/eventsource_register_worker.html" +
+                         "?script=eventsource_mixed_content_cors_response_intercept_worker.js");
+      })
+      .then(() => {
+        return testFrame("https://example.com/tests/dom/serviceworkers/test/" +
+                         "eventsource/eventsource_mixed_content_cors_response.html");
+      })
+      .then(SimpleTest.finish)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+        SimpleTest.finish();
+      });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["dom.caches.enabled", true],
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_fetch_event.html b/dom/serviceworkers/test/test_fetch_event.html
new file mode 100644
index 0000000000..5227f6ae34
--- /dev/null
+++ b/dom/serviceworkers/test/test_fetch_event.html
@@ -0,0 +1,75 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 94048 - test install event.</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+  SimpleTest.requestCompleteLog();
+
+  var registration;
+  function simpleRegister() {
+    return navigator.serviceWorker.register("fetch_event_worker.js", { scope: "./fetch" })
+      .then(swr => {
+        registration = swr;
+        return waitForState(swr.installing, 'activated');
+      });
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(success) {
+      ok(success, "Service worker should be unregistered successfully");
+    }, function(e) {
+      dump("SW unregistration error: " + e + "\n");
+    });
+  }
+
+  function testController() {
+    var p = new Promise(function(resolve, reject) {
+      window.onmessage = function(e) {
+        if (e.data.status == "ok") {
+          ok(e.data.result, e.data.message);
+        } else if (e.data.status == "done") {
+          window.onmessage = null;
+          w.close();
+          resolve();
+        }
+      }
+    });
+
+    var w = window.open("fetch/index.html");
+    return p;
+  }
+
+  function runTest() {
+    simpleRegister()
+      .then(testController)
+      .then(unregister)
+      .then(function() {
+        SimpleTest.finish();
+      }).catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+        SimpleTest.finish();
+      });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_fetch_event_with_thirdpartypref.html b/dom/serviceworkers/test/test_fetch_event_with_thirdpartypref.html
new file mode 100644
index 0000000000..53552e03c3
--- /dev/null
+++ b/dom/serviceworkers/test/test_fetch_event_with_thirdpartypref.html
@@ -0,0 +1,90 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 94048 - test install event.</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+
+  // NOTE: This is just test_fetch_event.html but with an alternate cookie
+  //       mode preference set to make sure that setting the preference does
+  //       not break interception as observed in bug 1336364.
+  // TODO: Refactor this test so it doesn't duplicate so much code logic.
+
+  SimpleTest.requestCompleteLog();
+
+  var registration;
+  function simpleRegister() {
+    return navigator.serviceWorker.register("fetch_event_worker.js", { scope: "./fetch" })
+      .then(swr => {
+        registration = swr;
+        return waitForState(swr.installing, 'activated');
+      });
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(success) {
+      ok(success, "Service worker should be unregistered successfully");
+    }, function(e) {
+      dump("SW unregistration error: " + e + "\n");
+    });
+  }
+
+  function testController() {
+    var p = new Promise(function(resolve, reject) {
+      var reloaded = false;
+      window.onmessage = function(e) {
+        if (e.data.status == "ok") {
+          ok(e.data.result, e.data.message);
+        } else if (e.data.status == "done") {
+          if (reloaded) {
+            window.onmessage = null;
+            w.close();
+            resolve();
+          } else {
+            w.location.reload();
+            reloaded = true;
+          }
+        }
+      }
+    });
+
+    var w = window.open("fetch/index.html");
+    return p;
+  }
+
+  function runTest() {
+    simpleRegister()
+      .then(testController)
+      .then(unregister)
+      .then(function() {
+        SimpleTest.finish();
+      }).catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+        SimpleTest.finish();
+      });
+  }
+
+  const COOKIE_BEHAVIOR_REJECTFOREIGN = 1;
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["network.cookie.cookieBehavior", COOKIE_BEHAVIOR_REJECTFOREIGN],
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_fetch_integrity.html b/dom/serviceworkers/test/test_fetch_integrity.html
new file mode 100644
index 0000000000..35879d5749
--- /dev/null
+++ b/dom/serviceworkers/test/test_fetch_integrity.html
@@ -0,0 +1,228 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title> Test fetch.integrity on console report for serviceWorker and sharedWorker </title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="error_reporting_helpers.js"></script>
+  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+  <meta http-equiv="Content-type" content="text/html;charset=UTF-8">
+</head>
+<body>
+<div id="content" style="display: none"></div>
+<script src="utils.js"></script>
+<script type="text/javascript">
+"use strict";
+
+let security_localizer =
+  stringBundleService.createBundle("chrome://global/locale/security/security.properties");
+
+let consoleScript;
+let monitorCallbacks = [];
+
+function registerConsoleMonitor() {
+  return new Promise(resolve => {
+    var url = SimpleTest.getTestFileURL("console_monitor.js");
+    consoleScript = SpecialPowers.loadChromeScript(url);
+
+    consoleScript.addMessageListener("ready", resolve);
+    consoleScript.addMessageListener("monitor", function(msg) {
+      for (let i = 0; i < monitorCallbacks.length;) {
+         if (monitorCallbacks[i](msg)) {
+           ++i;
+         } else {
+           monitorCallbacks.splice(i, 1);
+         }
+      }
+    });
+    consoleScript.sendAsyncMessage("load", {});
+  });
+}
+
+function unregisterConsoleMonitor() {
+  return new Promise(resolve => {
+    consoleScript.addMessageListener("unloaded", () => {
+      consoleScript.destroy();
+      resolve();
+    });
+    consoleScript.sendAsyncMessage("unload", {});
+  });
+}
+
+function registerConsoleMonitorCallback(callback) {
+  monitorCallbacks.push(callback);
+}
+
+function waitForMessages() {
+  let messages = [];
+
+  // process repeated paired arguments of: msgId, args
+  for (let i = 0; i < arguments.length; i += 3) {
+    let msgId = arguments[i];
+    let args = arguments[i + 1];
+    messages.push(security_localizer.formatStringFromName(msgId, args));
+  }
+
+  return new Promise(resolve => {
+    registerConsoleMonitorCallback(msg => {
+      for (let i = 0; i < messages.length; ++i) {
+        if (messages[i] == msg.errorMessage) {
+          messages.splice(i, 1);
+          break;
+        }
+      }
+
+      if (!messages.length) {
+        resolve();
+        return false;
+      }
+
+      return true;
+    });
+  });
+}
+
+function expect_security_console_message(/* msgId, args, ... */) {
+  let expectations = [];
+  // process repeated paired arguments of: msgId, args
+  for (let i = 0; i < arguments.length; i += 3) {
+    let msgId = arguments[i];
+    let args = arguments[i + 1];
+    let filename = arguments[i + 2];
+    expectations.push({
+      errorMessage: security_localizer.formatStringFromName(msgId, args),
+      sourceName: filename,
+    });
+  }
+  return new Promise(resolve => {
+    SimpleTest.monitorConsole(resolve, expectations);
+  });
+}
+
+// (This doesn't really need to be its own task, but it allows the actual test
+// case to be self-contained.)
+add_task(function setupPrefs() {
+  return SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["browser.newtab.preload", false],
+  ]});
+});
+
+add_task(async function test_integrity_serviceWorker() {
+  var filename = make_absolute_url("fetch.js");
+  var filename2 = make_absolute_url("fake.html");
+
+  let registration = await navigator.serviceWorker.register("fetch.js",
+                                                            { scope: "./" });
+  await waitForState(registration.installing, "activated");
+
+  info("Test for mNavigationInterceptions.")
+  // The client_win will reload to another URL after opening filename2.
+  let client_win = window.open(filename2);
+
+  let expectedMessage = expect_security_console_message(
+    "MalformedIntegrityHash",
+    ["abc"],
+    filename,
+    "NoValidMetadata",
+    [""],
+    filename,
+  );
+  let expectedMessage2 = expect_security_console_message(
+    "MalformedIntegrityHash",
+    ["abc"],
+    filename,
+    "NoValidMetadata",
+    [""],
+    filename,
+  );
+
+  info("Test for mControlledDocuments and report error message to console.");
+  // The fetch will succeed because the integrity value is invalid and we are
+  // looking for the console message regarding the bad integrity value.
+  await fetch("fail.html");
+
+  await wait_for_expected_message(expectedMessage);
+
+  await wait_for_expected_message(expectedMessage2);
+
+  await registration.unregister();
+  client_win.close();
+});
+
+add_task(async function test_integrity_sharedWorker() {
+  var filename = make_absolute_url("sharedWorker_fetch.js");
+
+  await registerConsoleMonitor();
+
+  info("Attach main window to a SharedWorker.");
+  let sharedWorker = new SharedWorker(filename);
+  let waitForConnected = new Promise((resolve) => {
+    sharedWorker.port.onmessage = function (e) {
+      if (e.data == "Connected") {
+        resolve();
+      } else {
+        reject();
+      }
+    }
+  });
+  await waitForConnected;
+
+  info("Attch another window to the same SharedWorker.");
+  // Open another window and its also managed by the shared worker.
+  let client_win = window.open("create_another_sharedWorker.html");
+  let waitForBothConnected = new Promise((resolve) => {
+    sharedWorker.port.onmessage = function (e) {
+      if (e.data == "BothConnected") {
+        resolve();
+      } else {
+        reject();
+      }
+    }
+  });
+  await waitForBothConnected;
+
+  let expectedMessage = waitForMessages(
+    "MalformedIntegrityHash",
+    ["abc"],
+    filename,
+    "NoValidMetadata",
+    [""],
+    filename,
+  );
+
+  let expectedMessage2 = waitForMessages(
+    "MalformedIntegrityHash",
+    ["abc"],
+    filename,
+    "NoValidMetadata",
+    [""],
+    filename,
+  );
+
+  info("Start to fetch a URL with wrong integrity.")
+  sharedWorker.port.start();
+  sharedWorker.port.postMessage("StartFetchWithWrongIntegrity");
+
+  let waitForSRIFailed = new Promise((resolve) => {
+    sharedWorker.port.onmessage = function (e) {
+      if (e.data == "SRI_failed") {
+        resolve();
+      } else {
+        reject();
+      }
+    }
+  });
+  await waitForSRIFailed;
+
+  await expectedMessage;
+  await expectedMessage2;
+
+  client_win.close();
+
+  await unregisterConsoleMonitor();
+});
+
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_file_blob_response.html b/dom/serviceworkers/test/test_file_blob_response.html
new file mode 100644
index 0000000000..3aa72c3dda
--- /dev/null
+++ b/dom/serviceworkers/test/test_file_blob_response.html
@@ -0,0 +1,78 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1253777 - Test interception using file blob response body</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+  var registration;
+  var scope = './file_blob_response/';
+  function start() {
+    return navigator.serviceWorker.register("file_blob_response_worker.js",
+                                            { scope })
+      .then(function(swr) {
+        registration = swr;
+        return new waitForState(swr.installing, 'activated');
+      });
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      ok(false, "Unregistering the SW failed with " + e + "\n");
+    });
+  }
+
+  function withFrame(url) {
+    return new Promise(function(resolve, reject) {
+      var content = document.getElementById("content");
+      ok(content, "Parent exists.");
+
+      var frame = document.createElement("iframe");
+      frame.setAttribute('src', url);
+      content.appendChild(frame);
+
+      frame.addEventListener('load', function(evt) {
+        resolve(frame);
+      }, {once: true});
+    });
+  }
+
+  function runTest() {
+    start()
+      .then(function() {
+        return withFrame(scope + 'dummy.txt');
+      })
+      .then(function(frame) {
+        var result = JSON.parse(frame.contentWindow.document.body.textContent);
+        frame.remove();
+        is(result.value, 'success');
+      })
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      })
+      .then(unregister)
+      .then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_file_blob_upload.html b/dom/serviceworkers/test/test_file_blob_upload.html
new file mode 100644
index 0000000000..e60e65badd
--- /dev/null
+++ b/dom/serviceworkers/test/test_file_blob_upload.html
@@ -0,0 +1,146 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1203680 - Test interception of file blob uploads</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+  var registration;
+  var iframe;
+  function start() {
+    return navigator.serviceWorker.register("empty.js",
+                                            { scope: "./sw_clients/" })
+      .then((swr) => {
+        registration = swr
+        return waitForState(swr.installing, 'activated', swr);
+      });
+  }
+
+  function unregister() {
+    if (iframe) {
+      iframe.remove();
+      iframe = null;
+    }
+
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      ok(false, "Unregistering the SW failed with " + e + "\n");
+    });
+  }
+
+  function withFrame() {
+    var content = document.getElementById("content");
+    ok(content, "Parent exists.");
+
+    iframe = document.createElement("iframe");
+    iframe.setAttribute('src', "sw_clients/file_blob_upload_frame.html");
+    content.appendChild(iframe);
+
+    return new Promise(function(resolve, reject) {
+      window.addEventListener('message', function(evt) {
+        if (evt.data.status === 'READY') {
+          resolve();
+        } else {
+          reject(evt.data.result);
+        }
+      }, {once: true});
+    });
+  }
+
+  function postBlob(body) {
+    return new Promise(function(resolve, reject) {
+      window.addEventListener('message', function(evt) {
+        if (evt.data.status === 'OK') {
+          is(JSON.stringify(body), JSON.stringify(evt.data.result),
+             'body echoed back correctly');
+          resolve();
+        } else {
+          reject(evt.data.result);
+        }
+      }, {once: true});
+
+      iframe.contentWindow.postMessage({ type: 'TEST', body }, '*');
+    });
+  }
+
+  function generateMessage(length) {
+
+    var lorem =
+      'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis egestas '
+      'vehicula tortor eget ultrices. Sed et luctus est. Nunc eu orci ligula. '
+      'In vel ornare eros, eget lacinia diam. Praesent vel metus mattis, '
+      'cursus nulla sit amet, rhoncus diam. Aliquam nulla tortor, aliquet et '
+      'viverra non, dignissim vel tellus. Praesent sed ex in dolor aliquet '
+      'aliquet. In at facilisis sem, et aliquet eros. Maecenas feugiat nisl '
+      'quis elit blandit posuere. Duis viverra odio sed eros consectetur, '
+      'viverra mattis ligula volutpat.';
+
+    var result = '';
+
+    while (result.length < length) {
+      var remaining = length - result.length;
+      if (remaining < lorem.length) {
+        result += lorem.slice(0, remaining);
+      } else {
+        result += lorem;
+      }
+    }
+
+    return result;
+  }
+
+  var smallBody = generateMessage(64);
+  var mediumBody = generateMessage(1024);
+
+  // TODO: Test large bodies over the default pipe size.  Currently stalls
+  //       due to bug 1134372.
+  //var largeBody = generateMessage(100 * 1024);
+
+  function runTest() {
+    start()
+      .then(withFrame)
+      .then(function() {
+        return postBlob({ hops: 0, message: smallBody });
+      })
+      .then(function() {
+        return postBlob({ hops: 1, message: smallBody });
+      })
+      .then(function() {
+        return postBlob({ hops: 10, message: smallBody });
+      })
+      .then(function() {
+        return postBlob({ hops: 0, message: mediumBody });
+      })
+      .then(function() {
+        return postBlob({ hops: 1, message: mediumBody });
+      })
+      .then(function() {
+        return postBlob({ hops: 10, message: mediumBody });
+      })
+      .then(unregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_file_upload.html b/dom/serviceworkers/test/test_file_upload.html
new file mode 100644
index 0000000000..0c502686af
--- /dev/null
+++ b/dom/serviceworkers/test/test_file_upload.html
@@ -0,0 +1,68 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1424701 - Test for service worker + file upload</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="utils.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<input id="input" type="file">
+<script class="testbody" type="text/javascript">
+
+function GetFormData(file) {
+  const formData = new FormData();
+  formData.append('file', file);
+  return formData;
+}
+
+async function onOpened(message) {
+  let input = document.getElementById("input");
+  SpecialPowers.wrap(input).mozSetFileArray([message.file]);
+  script.destroy();
+
+  let reg = await navigator.serviceWorker.register('sw_file_upload.js',
+                                                   {scope: "." });
+  let serviceWorker = reg.installing || reg.waiting || reg.active;
+  await waitForState(serviceWorker, 'activated');
+
+  let res = await fetch('server_file_upload.sjs?clone=0', {
+    method: 'POST',
+    body: input.files[0],
+  });
+
+  let data = await res.clone().text();
+  ok(data.length, "We have data for an uncloned request!");
+
+  res = await fetch('server_file_upload.sjs?clone=1', {
+    method: 'POST',
+    // Make sure the underlying stream is a file stream
+    body: GetFormData(input.files[0]),
+  });
+
+  data = await res.clone().text();
+  ok(data.length, "We have data for a file-stream-backed cloned request!");
+
+  await reg.unregister();
+  SimpleTest.finish();
+}
+
+let url = SimpleTest.getTestFileURL("script_file_upload.js");
+let script = SpecialPowers.loadChromeScript(url);
+
+SimpleTest.waitForExplicitFinish();
+SpecialPowers.pushPrefEnv({"set": [
+  ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+  ["dom.serviceWorkers.enabled", true],
+  ["dom.serviceWorkers.testing.enabled", true]
+]}).then(() => {
+  script.addMessageListener("file.opened", onOpened);
+  script.sendAsyncMessage("file.open");
+});
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_force_refresh.html b/dom/serviceworkers/test/test_force_refresh.html
new file mode 100644
index 0000000000..69da7b7de3
--- /dev/null
+++ b/dom/serviceworkers/test/test_force_refresh.html
@@ -0,0 +1,105 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 982726 - Test service worker post message </title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+  /**
+   *
+   */
+  let iframe;
+  let registration;
+
+  function start() {
+    return new Promise(resolve => {
+      const content = document.getElementById("content");
+      ok(content, "Parent exists.");
+
+      iframe = document.createElement("iframe");
+      iframe.setAttribute("src", "sw_clients/refresher_compressed.html");
+
+      /*
+       * The initial iframe must be the _uncached_ version, which means its
+       * load must happen before the Service Worker's `activate` event.
+       * Rather than `waitUntil`-ing the Service Worker's `install` event
+       * until the load finishes (more concurrency, but involves coordinating
+       * `postMessage`s), just ensure the load finishes before registering
+       * the Service Worker (which is simpler).
+       */
+      iframe.onload = resolve;
+
+      content.appendChild(iframe);
+    }).then(async () => {
+      /*
+       * There's no need _here_ to explicitly wait for this Service Worker to be
+       * "activated"; this test will progress when the "READY"/"READY_CACHED"
+       * messages are received from the iframe, and the iframe will only send
+       * those messages once the Service Worker is "activated" (by chaining on
+       * its `navigator.serviceWorker.ready` promise).
+       */
+      registration = await navigator.serviceWorker.register(
+        "force_refresh_worker.js", { scope: "./sw_clients/" });
+    });
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  }
+
+  function testForceRefresh(swr) {
+    return new Promise(function(res, rej) {
+      var count = 0;
+      var cachedCount = 0;
+      window.onmessage = function(e) {
+        if (e.data === "READY") {
+          count += 1;
+          if (count == 2) {
+            is(cachedCount, 1, "should have received cached message before " +
+                               "second non-cached message");
+            res();
+          }
+          iframe.contentWindow.postMessage("REFRESH", "*");
+        } else if (e.data === "READY_CACHED") {
+          cachedCount += 1;
+          is(count, 1, "should have received non-cached message before " +
+                       "cached message");
+          iframe.contentWindow.postMessage("FORCE_REFRESH", "*");
+        }
+      }
+    }).then(() => document.getElementById("content").removeChild(iframe));
+  }
+
+  function runTest() {
+    start()
+      .then(testForceRefresh)
+      .then(unregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["dom.caches.enabled", true],
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_gzip_redirect.html b/dom/serviceworkers/test/test_gzip_redirect.html
new file mode 100644
index 0000000000..8119303ae7
--- /dev/null
+++ b/dom/serviceworkers/test/test_gzip_redirect.html
@@ -0,0 +1,88 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 982726 - Test service worker post message </title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+  var registration;
+  function start() {
+    return navigator.serviceWorker.register("gzip_redirect_worker.js",
+                                            { scope: "./sw_clients/" })
+      .then((swr) => {
+        registration = swr;
+        return waitForState(swr.installing, 'activated', swr);
+      });
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  }
+
+
+  function testGzipRedirect(swr) {
+    var p = new Promise(function(res, rej) {
+      var navigatorReady = false;
+      var finalReady = false;
+
+      window.onmessage = function(e) {
+        if (e.data === "NAVIGATOR_READY") {
+          ok(!navigatorReady, "should only get navigator ready message once");
+          ok(!finalReady, "should get navigator ready before final redirect ready message");
+          navigatorReady = true;
+          iframe.contentWindow.postMessage({
+            type: "NAVIGATE",
+            url: "does_not_exist.html"
+          }, "*");
+        } else if (e.data === "READY") {
+          ok(navigatorReady, "should only get navigator ready message once");
+          ok(!finalReady, "should get final ready message only once");
+          finalReady = true;
+          res();
+        }
+      }
+    });
+
+    var content = document.getElementById("content");
+    ok(content, "Parent exists.");
+
+    iframe = document.createElement("iframe");
+    iframe.setAttribute('src', "sw_clients/navigator.html");
+    content.appendChild(iframe);
+
+    return p.then(() => content.removeChild(iframe));
+  }
+
+  function runTest() {
+    start()
+      .then(testGzipRedirect)
+      .then(unregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_hsts_upgrade_intercept.html b/dom/serviceworkers/test/test_hsts_upgrade_intercept.html
new file mode 100644
index 0000000000..59fef0ec14
--- /dev/null
+++ b/dom/serviceworkers/test/test_hsts_upgrade_intercept.html
@@ -0,0 +1,66 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test that an HSTS upgraded request can be intercepted by a service worker</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  var framesLoaded = 0;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/hsts/register.html";
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        iframe.src = "http://example.com/tests/dom/serviceworkers/test/fetch/hsts/index.html";
+      } else if (e.data.status == "protocol") {
+        is(e.data.data, "https:", "Correct protocol expected");
+        ok(e.data.securityInfoPresent, "Security info present on intercepted value");
+        switch (++framesLoaded) {
+        case 1:
+          iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/hsts/embedder.html";
+          break;
+        case 2:
+          iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/hsts/image.html";
+          break;
+        }
+      } else if (e.data.status == "image") {
+        is(e.data.data, 40, "The image request was upgraded before interception");
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/hsts/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        window.onmessage = null;
+        SpecialPowers.cleanUpSTSData("http://example.com");
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      // This is needed so that we can test upgrading a non-secure load inside an https iframe.
+      ["security.mixed_content.block_active_content", false],
+      ["security.mixed_content.block_display_content", false],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_https_fetch.html b/dom/serviceworkers/test/test_https_fetch.html
new file mode 100644
index 0000000000..4ac4255889
--- /dev/null
+++ b/dom/serviceworkers/test/test_https_fetch.html
@@ -0,0 +1,62 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1133763 - test fetch event in HTTPS origins</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/https/register.html";
+    var ios;
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        ios = SpecialPowers.Cc["@mozilla.org/network/io-service;1"]
+                           .getService(SpecialPowers.Ci.nsIIOService);
+        ios.offline = true;
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/https/index.html";
+      } else if (e.data.status == "done") {
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/https/synth-sw.html";
+      } else if (e.data.status == "done-synth-sw") {
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/https/synth-window.html";
+      } else if (e.data.status == "done-synth-window") {
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/https/synth.html";
+      } else if (e.data.status == "done-synth") {
+        ios.offline = false;
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/https/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        window.onmessage = null;
+        ok(true, "Test finished successfully");
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["dom.caches.enabled", true]
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_https_fetch_cloned_response.html b/dom/serviceworkers/test/test_https_fetch_cloned_response.html
new file mode 100644
index 0000000000..8c7129d39d
--- /dev/null
+++ b/dom/serviceworkers/test/test_https_fetch_cloned_response.html
@@ -0,0 +1,56 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1133763 - test fetch event in HTTPS origins with a cloned response</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/https/clonedresponse/register.html";
+    var ios;
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        ios = SpecialPowers.Cc["@mozilla.org/network/io-service;1"]
+                           .getService(SpecialPowers.Ci.nsIIOService);
+        ios.offline = true;
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/https/clonedresponse/index.html";
+      } else if (e.data.status == "done") {
+        ios.offline = false;
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/https/clonedresponse/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        window.onmessage = null;
+        ok(true, "Test finished successfully");
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["dom.caches.enabled", true]
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_https_origin_after_redirect.html b/dom/serviceworkers/test/test_https_origin_after_redirect.html
new file mode 100644
index 0000000000..31ce173f34
--- /dev/null
+++ b/dom/serviceworkers/test/test_https_origin_after_redirect.html
@@ -0,0 +1,57 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test the origin of a redirected response from a service worker</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/origin/https/register.html";
+    var win;
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        win = window.open("https://example.com/tests/dom/serviceworkers/test/fetch/origin/https/index-https.sjs", "mywindow", "width=100,height=100");
+      } else if (e.data.status == "domain") {
+        is(e.data.data, "example.org", "Correct domain expected");
+      } else if (e.data.status == "origin") {
+        is(e.data.data, "https://example.org", "Correct origin expected");
+      } else if (e.data.status == "done") {
+        win.close();
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/origin/https/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        window.onmessage = null;
+        ok(true, "Test finished successfully");
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["dom.caches.enabled", true],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_https_origin_after_redirect_cached.html b/dom/serviceworkers/test/test_https_origin_after_redirect_cached.html
new file mode 100644
index 0000000000..8bce413f21
--- /dev/null
+++ b/dom/serviceworkers/test/test_https_origin_after_redirect_cached.html
@@ -0,0 +1,57 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test the origin of a redirected response from a service worker</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/origin/https/register.html";
+    var win;
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        win = window.open("https://example.com/tests/dom/serviceworkers/test/fetch/origin/https/index-cached-https.sjs", "mywindow", "width=100,height=100");
+      } else if (e.data.status == "domain") {
+        is(e.data.data, "example.org", "Correct domain expected");
+      } else if (e.data.status == "origin") {
+        is(e.data.data, "https://example.org", "Correct origin expected");
+      } else if (e.data.status == "done") {
+        win.close();
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/origin/https/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        window.onmessage = null;
+        ok(true, "Test finished successfully");
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["dom.caches.enabled", true],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_https_synth_fetch_from_cached_sw.html b/dom/serviceworkers/test/test_https_synth_fetch_from_cached_sw.html
new file mode 100644
index 0000000000..4186cfc340
--- /dev/null
+++ b/dom/serviceworkers/test/test_https_synth_fetch_from_cached_sw.html
@@ -0,0 +1,69 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1156847 - test fetch event generating a synthesized response in HTTPS origins from a cached SW</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" tyle="display: none">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/https/register.html";
+    var ios;
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        ios = SpecialPowers.Cc["@mozilla.org/network/io-service;1"]
+                           .getService(SpecialPowers.Ci.nsIIOService);
+        ios.offline = true;
+
+        // In order to load synth.html from a cached service worker, we first
+        // remove the existing window that is keeping the service worker alive,
+        // and do a GC to ensure that the SW is destroyed.  This way, when we
+        // load synth.html for the second time, we will first recreate the
+        // service worker from the cache.  This is intended to test that we
+        // properly store and retrieve the security info from the cache.
+        iframe.remove();
+        iframe = null;
+        SpecialPowers.exactGC(function() {
+          iframe = document.createElement("iframe");
+          iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/https/synth.html";
+          document.body.appendChild(iframe);
+        });
+      } else if (e.data.status == "done-synth") {
+        ios.offline = false;
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/https/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        window.onmessage = null;
+        ok(true, "Test finished successfully");
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["dom.caches.enabled", true]
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_imagecache.html b/dom/serviceworkers/test/test_imagecache.html
new file mode 100644
index 0000000000..52a793bfb9
--- /dev/null
+++ b/dom/serviceworkers/test/test_imagecache.html
@@ -0,0 +1,55 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1202085 - Test that images from different controllers don't cached together</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "/tests/dom/serviceworkers/test/fetch/imagecache/register.html";
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        iframe.src = "/tests/dom/serviceworkers/test/fetch/imagecache/index.html";
+      } else if (e.data.status == "result") {
+        is(e.data.url, "image-40px.png", "Correct url expected");
+        is(e.data.width, 40, "Correct width expected");
+        iframe.src = "/tests/dom/serviceworkers/test/fetch/imagecache/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        iframe.src = "/tests/dom/serviceworkers/test/fetch/imagecache/postmortem.html";
+      } else if (e.data.status == "postmortem") {
+        is(e.data.width, 20, "Correct width expected");
+        window.onmessage = null;
+        ok(true, "Test finished successfully");
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_imagecache_max_age.html b/dom/serviceworkers/test/test_imagecache_max_age.html
new file mode 100644
index 0000000000..fcb8d3e306
--- /dev/null
+++ b/dom/serviceworkers/test/test_imagecache_max_age.html
@@ -0,0 +1,71 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test that the image cache respects a synthesized image's Cache headers</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  var framesLoaded = 0;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "/tests/dom/serviceworkers/test/fetch/imagecache-maxage/register.html";
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        iframe.src = "/tests/dom/serviceworkers/test/fetch/imagecache-maxage/index.html";
+      } else if (e.data.status == "result") {
+        switch (++framesLoaded) {
+        case 1:
+          is(e.data.url, "image-20px.png", "Correct url expected");
+          is(e.data.url2, "image-20px.png", "Correct url expected");
+          is(e.data.width, 20, "Correct width expected");
+          is(e.data.width2, 20, "Correct width expected");
+          // Wait for 100ms so that the image gets expired.
+          setTimeout(function() {
+            iframe.src = "/tests/dom/serviceworkers/test/fetch/imagecache-maxage/index.html?new"
+          }, 100);
+          break;
+        case 2:
+          is(e.data.url, "image-40px.png", "Correct url expected");
+          is(e.data.url2, "image-40px.png", "Correct url expected");
+          is(e.data.width, 40, "Correct width expected");
+          is(e.data.width2, 40, "Correct width expected");
+          iframe.src = "/tests/dom/serviceworkers/test/fetch/imagecache-maxage/unregister.html";
+          break;
+        default:
+          ok(false, "This should never happen");
+        }
+      } else if (e.data.status == "unregistrationdone") {
+        window.onmessage = null;
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.requestFlakyTimeout("This test needs to simulate the passing of time");
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_importscript.html b/dom/serviceworkers/test/test_importscript.html
new file mode 100644
index 0000000000..c0a894cf3c
--- /dev/null
+++ b/dom/serviceworkers/test/test_importscript.html
@@ -0,0 +1,74 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test service worker - script cache policy</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<div id="content"></div>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+  function start() {
+    return navigator.serviceWorker.register("importscript_worker.js",
+                                            { scope: "./sw_clients/" })
+      .then(swr => waitForState(swr.installing, 'activated', swr))
+      .then(swr => registration = swr);
+  }
+
+  function unregister() {
+    return fetch("importscript.sjs?clearcounter").then(function() {
+      return registration.unregister();
+    }).then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  }
+
+  function testPostMessage(swr) {
+    var p = new Promise(function(res, rej) {
+      window.onmessage = function(e) {
+        if (e.data === "READY") {
+          swr.active.postMessage("do magic");
+          return;
+        }
+
+        ok(e.data === "OK", "Worker posted the correct value: " + e.data);
+        res();
+      }
+    });
+
+    var content = document.getElementById("content");
+    ok(content, "Parent exists.");
+
+    iframe = document.createElement("iframe");
+    iframe.setAttribute('src', "sw_clients/service_worker_controlled.html");
+    content.appendChild(iframe);
+
+    return p.then(() => content.removeChild(iframe));
+  }
+
+  function runTest() {
+    start()
+      .then(testPostMessage)
+      .then(unregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_importscript_mixedcontent.html b/dom/serviceworkers/test/test_importscript_mixedcontent.html
new file mode 100644
index 0000000000..15fe5e88b6
--- /dev/null
+++ b/dom/serviceworkers/test/test_importscript_mixedcontent.html
@@ -0,0 +1,53 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1198078 - test that we respect mixed content blocking in importScript() inside service workers</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/importscript-mixedcontent/register.html";
+    var ios;
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/importscript-mixedcontent/index.html";
+      } else if (e.data.status == "done") {
+        is(e.data.data, "good", "Mixed content blocking should work correctly for service workers");
+        iframe.src = "https://example.com/tests/dom/serviceworkers/test/fetch/importscript-mixedcontent/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        window.onmessage = null;
+        ok(true, "Test finished successfully");
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["security.mixed_content.block_active_content", false],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_install_event.html b/dom/serviceworkers/test/test_install_event.html
new file mode 100644
index 0000000000..87f89725dc
--- /dev/null
+++ b/dom/serviceworkers/test/test_install_event.html
@@ -0,0 +1,143 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 94048 - test install event.</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  function simpleRegister() {
+    var p = navigator.serviceWorker.register("worker.js", { scope: "./install_event" });
+    return p;
+  }
+
+  function nextRegister(reg) {
+    ok(reg instanceof ServiceWorkerRegistration, "reg should be a ServiceWorkerRegistration");
+    var p = navigator.serviceWorker.register("install_event_worker.js", { scope: "./install_event" });
+    return p.then(function(swr) {
+      ok(reg === swr, "register should resolve to the same registration object");
+      var update_found_promise = new Promise(function(resolve, reject) {
+        swr.addEventListener('updatefound', function(e) {
+          ok(true, "Received onupdatefound");
+          resolve();
+        });
+      });
+
+      var worker_activating = new Promise(function(res, reject) {
+        ok(swr.installing instanceof ServiceWorker, "There should be an installing worker if promise resolves.");
+        ok(swr.installing.state == "installing", "Installing worker's state should be 'installing'");
+        swr.installing.onstatechange = function(e) {
+          if (e.target.state == "activating") {
+            e.target.onstatechange = null;
+            res();
+          }
+        }
+      });
+
+      return Promise.all([update_found_promise, worker_activating]);
+    }, function(e) {
+      ok(false, "Unexpected Error in nextRegister! " + e);
+    });
+  }
+
+  function installError() {
+    // Silence worker errors so they don't cause the test to fail.
+    window.onerror = function(e) {}
+    return navigator.serviceWorker.register("install_event_error_worker.js", { scope: "./install_event" })
+      .then(function(swr) {
+        ok(swr.installing instanceof ServiceWorker, "There should be an installing worker if promise resolves.");
+        ok(swr.installing.state == "installing", "Installing worker's state should be 'installing'");
+        return new Promise(function(resolve, reject) {
+          swr.installing.onstatechange = function(e) {
+            ok(e.target.state == "redundant", "Installation of worker with error should fail.");
+            resolve();
+          }
+        });
+      }).then(function() {
+        return navigator.serviceWorker.getRegistration("./install_event").then(function(swr) {
+          var newest = swr.waiting || swr.active;
+          ok(newest, "Waiting or active worker should still exist");
+          ok(newest.scriptURL.match(/install_event_worker.js$/), "Previous worker should remain the newest worker");
+        });
+      });
+  }
+
+  function testActive(worker) {
+    is(worker.state, "activating", "Should be activating");
+    return new Promise(function(resolve, reject) {
+      worker.onstatechange = function(e) {
+        e.target.onstatechange = null;
+        is(e.target.state, "activated", "Activation of worker with error in activate event handler should still succeed.");
+        resolve();
+      }
+    });
+  }
+
+  function activateErrorShouldSucceed() {
+    // Silence worker errors so they don't cause the test to fail.
+    window.onerror = function() { }
+    return navigator.serviceWorker.register("activate_event_error_worker.js", { scope: "./activate_error" })
+      .then(function(swr) {
+        var p = new Promise(function(resolve, reject) {
+          ok(swr.installing.state == "installing", "activateErrorShouldSucceed(): Installing worker's state should be 'installing'");
+          swr.installing.onstatechange = function(e) {
+            e.target.onstatechange = null;
+            if (swr.waiting) {
+              swr.waiting.onstatechange = function(event) {
+                event.target.onstatechange = null;
+                testActive(swr.active).then(resolve, reject);
+              }
+            } else {
+              testActive(swr.active).then(resolve, reject);
+            }
+          }
+        });
+
+        return p.then(function() {
+          return Promise.resolve(swr);
+        });
+      }).then(function(swr) {
+        return swr.unregister();
+      });
+  }
+
+  function unregister() {
+    return navigator.serviceWorker.getRegistration("./install_event").then(function(reg) {
+      return reg.unregister();
+    });
+  }
+
+  function runTest() {
+    Promise.resolve()
+      .then(simpleRegister)
+      .then(nextRegister)
+      .then(installError)
+      .then(activateErrorShouldSucceed)
+      .then(unregister)
+      .then(function() {
+        SimpleTest.finish();
+      }).catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+        SimpleTest.finish();
+      });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_install_event_gc.html b/dom/serviceworkers/test/test_install_event_gc.html
new file mode 100644
index 0000000000..8b68b8ac47
--- /dev/null
+++ b/dom/serviceworkers/test/test_install_event_gc.html
@@ -0,0 +1,121 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test install event being GC'd before waitUntil fulfills</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<script class="testbody" type="text/javascript">
+var script = 'blocking_install_event_worker.js';
+var scope = 'sw_clients/simple.html?install-event-gc';
+var registration;
+
+function register() {
+  return navigator.serviceWorker.register(script, { scope })
+    .then(swr => registration = swr);
+}
+
+function unregister() {
+  if (!registration) {
+    return;
+  }
+  return registration.unregister();
+}
+
+function waitForInstallEvent() {
+  return new Promise((resolve, reject) => {
+    navigator.serviceWorker.addEventListener('message', evt => {
+      if (evt.data.type === 'INSTALL_EVENT') {
+        resolve();
+      }
+    });
+  });
+}
+
+function gcWorker() {
+  return new Promise(function(resolve, reject) {
+    // We are able to trigger asynchronous garbage collection and cycle
+    // collection by emitting "child-cc-request" and "child-gc-request"
+    // observer notifications.  The worker RuntimeService will translate
+    // these notifications into the appropriate operation on all known
+    // worker threads.
+    //
+    // In the failure case where GC/CC causes us to abort the installation,
+    // we will know something happened from the statechange event.
+    const statechangeHandler = evt => {
+      // Reject rather than resolving to avoid the possibility of us seeing
+      // an unrelated racing statechange somehow.  Since in the success case we
+      // will still see a state change on termination, we do explicitly need to
+      // be removed on the success path.
+      ok(registration.installing, 'service worker is still installing?');
+      reject();
+    };
+    registration.installing.addEventListener('statechange', statechangeHandler);
+    // In the success case since the service worker installation is effectively
+    // hung, we instead depend on sending a 'ping' message to the service worker
+    // and hearing it 'pong' back.  Since we issue our postMessage after we
+    // trigger the GC/CC, our 'ping' will only be processed after the GC/CC and
+    // therefore the pong will also strictly occur after the cycle collection.
+    navigator.serviceWorker.addEventListener('message', evt => {
+      if (evt.data.type === 'pong') {
+        registration.installing.removeEventListener(
+          'statechange', statechangeHandler);
+        resolve();
+      }
+    });
+    // At the current time, the service worker will exist in our same process
+    // and notifyObservers is synchronous.  However, in the future, service
+    // workers may end up in a separate process and in that case it will be
+    // appropriate to use notifyObserversInParentProcess or something like it.
+    // (notifyObserversInParentProcess is a synchronous IPC call to the parent
+    // process's main thread.  IPDL PContent::CycleCollect is an async message.
+    // Ordering will be maintained if the postMessage goes via PContent as well,
+    // but that seems unlikely.)
+    SpecialPowers.notifyObservers(null, 'child-gc-request');
+    SpecialPowers.notifyObservers(null, 'child-cc-request');
+    SpecialPowers.notifyObservers(null, 'child-gc-request');
+    // (Only send the ping after we set the gc/cc/gc in motion.)
+    registration.installing.postMessage({ type: 'ping' });
+  });
+}
+
+function terminateWorker() {
+  return SpecialPowers.pushPrefEnv({
+    set: [
+      ["dom.serviceWorkers.idle_timeout", 0],
+      ["dom.serviceWorkers.idle_extended_timeout", 0]
+    ]
+  }).then(_ => {
+    registration.installing.postMessage({ type: 'RESET_TIMER' });
+  });
+}
+
+function runTest() {
+  Promise.all([
+    waitForInstallEvent(),
+    register()
+  ]).then(_ => ok(registration.installing, 'service worker is installing'))
+    .then(gcWorker)
+    .then(_ => ok(registration.installing, 'service worker is still installing'))
+    .then(terminateWorker)
+    .catch(e => ok(false, e))
+    .then(unregister)
+    .then(SimpleTest.finish);
+}
+
+SimpleTest.waitForExplicitFinish();
+SpecialPowers.pushPrefEnv({"set": [
+  ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+  ["dom.serviceWorkers.enabled", true],
+  ["dom.serviceWorkers.testing.enabled", true],
+  ["dom.caches.enabled", true],
+]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_installation_simple.html b/dom/serviceworkers/test/test_installation_simple.html
new file mode 100644
index 0000000000..69c9518ea0
--- /dev/null
+++ b/dom/serviceworkers/test/test_installation_simple.html
@@ -0,0 +1,208 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 930348 - test stub Navigator ServiceWorker utilities.</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  function simpleRegister() {
+    var p = navigator.serviceWorker.register("worker.js", { scope: "simpleregister/" });
+    ok(p instanceof Promise, "register() should return a Promise");
+    return Promise.resolve();
+  }
+
+  function sameOriginWorker() {
+    p = navigator.serviceWorker.register("http://some-other-origin/worker.js");
+    return p.then(function(w) {
+      ok(false, "Worker from different origin should fail");
+    }, function(e) {
+      ok(e.name === "SecurityError", "Should fail with a SecurityError");
+    });
+  }
+
+  function sameOriginScope() {
+    p = navigator.serviceWorker.register("worker.js", { scope: "http://www.example.com/" });
+    return p.then(function(w) {
+      ok(false, "Worker controlling scope for different origin should fail");
+    }, function(e) {
+      ok(e.name === "SecurityError", "Should fail with a SecurityError");
+    });
+  }
+
+  function httpsOnly() {
+    return SpecialPowers.pushPrefEnv({'set': [["dom.serviceWorkers.testing.enabled", false]] })
+    .then(function() {
+      return navigator.serviceWorker.register("/worker.js");
+    }).then(function(w) {
+      ok(false, "non-HTTPS pages cannot register ServiceWorkers");
+    }, function(e) {
+      ok(e.name === "TypeError", "navigator.serviceWorker should be undefined");
+    }).then(function() {
+      return SpecialPowers.popPrefEnv();
+    });
+  }
+
+  function realWorker() {
+    var p = navigator.serviceWorker.register("worker.js", { scope: "realworker" });
+    return p.then(function(wr) {
+      ok(wr instanceof ServiceWorkerRegistration, "Register a ServiceWorker");
+
+      info(wr.scope);
+      ok(wr.scope == (new URL("realworker", document.baseURI)).href, "Scope should match");
+      // active, waiting, installing should return valid worker instances
+      // because the registration is for the realworker scope, so the workers
+      // should be obtained for that scope and not for
+      // test_installation_simple.html
+      var worker = wr.installing;
+      ok(worker && wr.scope.match(/realworker$/) &&
+         worker.scriptURL.match(/worker.js$/), "Valid worker instance should be available.");
+      return wr.unregister().then(function(success) {
+        ok(success, "The worker should be unregistered successfully");
+      }, function(e) {
+        dump("Error unregistering the worker: " + e + "\n");
+      });
+    }, function(e) {
+      info("Error: " + e.name);
+      ok(false, "realWorker Registration should have succeeded!");
+    });
+  }
+
+  function networkError404() {
+    return navigator.serviceWorker.register("404.js", { scope: "network_error/"}).then(function(w) {
+        ok(false, "404 response should fail with TypeError");
+      }, function(e) {
+        ok(e.name === "TypeError", "404 response should fail with TypeError");
+      });
+  }
+
+  function redirectError() {
+    return navigator.serviceWorker.register("redirect_serviceworker.sjs", { scope: "redirect_error/" }).then(function(swr) {
+        ok(false, "redirection should fail");
+      }, function (e) {
+        ok(e.name === "SecurityError", "redirection should fail with SecurityError");
+      });
+  }
+
+  function parseError() {
+    var p = navigator.serviceWorker.register("parse_error_worker.js", { scope: "parse_error/" });
+    return p.then(function(wr) {
+      ok(false, "Registration should fail with parse error");
+      return navigator.serviceWorker.getRegistration("parse_error/").then(function(swr) {
+        // See https://github.com/slightlyoff/ServiceWorker/issues/547
+        is(swr, undefined, "A failed registration for a scope with no prior controllers should clear itself");
+      });
+    }, function(e) {
+      ok(e instanceof Error, "Registration should fail with parse error");
+    });
+  }
+
+  // FIXME(nsm): test for parse error when Update step doesn't happen (directly from register).
+
+  function updatefound() {
+    var frame = document.createElement("iframe");
+    frame.setAttribute("id", "simpleregister-frame");
+    frame.setAttribute("src", new URL("simpleregister/index.html", document.baseURI).href);
+    document.body.appendChild(frame);
+    var resolve, reject;
+    var p = new Promise(function(res, rej) {
+      resolve = res;
+      reject = rej;
+    });
+
+    var regPromise;
+    function continueTest() {
+      regPromise = navigator.serviceWorker.register(
+        "worker2.js", { scope: "simpleregister/" });
+    }
+
+    window.onmessage = function(e) {
+      if (e.data.type == "ready") {
+        continueTest();
+      } else if (e.data.type == "finish") {
+        window.onmessage = null;
+        // We have to make frame navigate away, otherwise it will call
+        // MaybeStopControlling() when this document is unloaded. At that point
+        // the pref has been disabled, so the ServiceWorkerManager is not available.
+        frame.setAttribute("src", new URL("about:blank").href);
+        regPromise.then(function(reg) {
+          reg.unregister().then(function(success) {
+            ok(success, "The worker should be unregistered successfully");
+            resolve();
+          }, function(error) {
+            dump("Error unregistering the worker: " + error + "\n");
+          });
+        });
+      } else if (e.data.type == "check") {
+        ok(e.data.status, e.data.msg);
+      }
+    }
+    return p;
+  }
+
+  var readyPromiseResolved = false;
+
+  function readyPromise() {
+    var frame = document.createElement("iframe");
+    frame.setAttribute("id", "simpleregister-frame-ready");
+    frame.setAttribute("src", new URL("simpleregister/ready.html", document.baseURI).href);
+    document.body.appendChild(frame);
+
+    var channel = new MessageChannel();
+    frame.addEventListener('load', function() {
+      frame.contentWindow.postMessage('your port!', '*', [channel.port2]);
+    });
+
+    channel.port1.onmessage = function() {
+      readyPromiseResolved = true;
+    }
+
+    return Promise.resolve();
+  }
+
+  function checkReadyPromise() {
+    ok(readyPromiseResolved, "The ready promise has been resolved!");
+    return Promise.resolve();
+  }
+
+  function runTest() {
+    simpleRegister()
+      .then(sameOriginWorker)
+      .then(sameOriginScope)
+      .then(httpsOnly)
+      .then(readyPromise)
+      .then(realWorker)
+      .then(networkError404)
+      .then(redirectError)
+      .then(parseError)
+      .then(updatefound)
+      .then(checkReadyPromise)
+      // put more tests here.
+      .then(function() {
+        SimpleTest.finish();
+      }).catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+        SimpleTest.finish();
+      });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["dom.caches.testing.enabled", true],
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_match_all.html b/dom/serviceworkers/test/test_match_all.html
new file mode 100644
index 0000000000..a1ee01507c
--- /dev/null
+++ b/dom/serviceworkers/test/test_match_all.html
@@ -0,0 +1,83 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 982726 - test match_all not crashing</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+  // match_all_worker will call matchAll until the worker shuts down.
+  // Test passes if the browser doesn't crash on leaked promise objects.
+  var registration;
+  var content;
+  var iframe;
+
+  function simpleRegister() {
+    return navigator.serviceWorker.register("match_all_worker.js",
+                                            { scope: "./sw_clients/" })
+      .then((swr) => {
+        registration = swr;
+        return waitForState(swr.installing, 'activated', swr);
+      });
+  }
+
+  function closeAndUnregister() {
+    content.removeChild(iframe);
+
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  }
+
+  function openClient() {
+    var p = new Promise(function(resolve, reject) {
+      window.onmessage = function(e) {
+        if (e.data === "READY") {
+          resolve();
+        }
+      }
+    });
+
+    content = document.getElementById("content");
+    ok(content, "Parent exists.");
+
+    iframe = document.createElement("iframe");
+    iframe.setAttribute('src', "sw_clients/simple.html");
+    content.appendChild(iframe);
+
+    return p;
+  }
+
+  function runTest() {
+    simpleRegister()
+      .then(openClient)
+      .then(closeAndUnregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(function() {
+        ok(true, "Didn't crash on resolving matchAll promises while worker shuts down.");
+        SimpleTest.finish();
+      });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_match_all_advanced.html b/dom/serviceworkers/test/test_match_all_advanced.html
new file mode 100644
index 0000000000..b4359511f3
--- /dev/null
+++ b/dom/serviceworkers/test/test_match_all_advanced.html
@@ -0,0 +1,102 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 982726 - Test matchAll with multiple clients</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+  var client_iframes = [];
+  var registration;
+
+  function start() {
+    return navigator.serviceWorker.register("match_all_advanced_worker.js",
+                                            { scope: "./sw_clients/" }).then(function(swr) {
+      registration = swr;
+      return waitForState(swr.installing, 'activated');
+    }).then(_ => {
+      window.onmessage = function (e) {
+        if (e.data === "READY") {
+          ok(registration.active, "Worker is active.");
+          registration.active.postMessage("RUN");
+        }
+      }
+    });
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  }
+
+
+  function testMatchAll() {
+    var p = new Promise(function(res, rej) {
+      navigator.serviceWorker.onmessage = function (e) {
+        ok(e.data === client_iframes.length, "MatchAll returned the correct number of clients.");
+        res();
+      }
+    });
+
+    content = document.getElementById("content");
+    ok(content, "Parent exists.");
+
+    iframe = document.createElement("iframe");
+    iframe.setAttribute('src', "sw_clients/service_worker_controlled.html");
+    content.appendChild(iframe);
+
+    client_iframes.push(iframe);
+    return p;
+  }
+
+  function removeAndTest() {
+    content = document.getElementById("content");
+    ok(content, "Parent exists.");
+
+    content.removeChild(client_iframes.pop());
+    content.removeChild(client_iframes.pop());
+
+    return testMatchAll();
+  }
+
+  function runTest() {
+    start()
+      .then(testMatchAll)
+      .then(testMatchAll)
+      .then(testMatchAll)
+      .then(removeAndTest)
+      .then(function(e) {
+        content = document.getElementById("content");
+        while (client_iframes.length) {
+          content.removeChild(client_iframes.pop());
+        }
+      }).then(unregister).catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(function() {
+        SimpleTest.finish();
+      });
+
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_match_all_client_id.html b/dom/serviceworkers/test/test_match_all_client_id.html
new file mode 100644
index 0000000000..0294c00aba
--- /dev/null
+++ b/dom/serviceworkers/test/test_match_all_client_id.html
@@ -0,0 +1,95 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1058311 - Test matchAll client id </title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+  var registration;
+  var clientURL = "match_all_client/match_all_client_id.html";
+  function start() {
+    return navigator.serviceWorker.register("match_all_client_id_worker.js",
+                                            { scope: "./match_all_client/" })
+      .then((swr) => {
+        registration = swr;
+        return waitForState(swr.installing, 'activated', swr);
+      });
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  }
+
+  function getMessageListener() {
+    return new Promise(function(res, rej) {
+      window.onmessage = function(e) {
+        ok(e.data, "Same client id for multiple calls.");
+        is(e.origin, "http://mochi.test:8888", "Event should have the correct origin");
+
+        if (!e.data) {
+          rej();
+          return;
+        }
+
+        info("DONE from: " + e.source);
+        res();
+      }
+    });
+  }
+
+  function testNestedWindow() {
+    var p = getMessageListener();
+
+    var content = document.getElementById("content");
+    ok(content, "Parent exists.");
+
+    iframe = document.createElement("iframe");
+
+    content.appendChild(iframe);
+    iframe.setAttribute('src', clientURL);
+
+    return p.then(() => content.removeChild(iframe));
+  }
+
+  function testAuxiliaryWindow() {
+    var p = getMessageListener();
+    var w = window.open(clientURL);
+
+    return p.then(() => w.close());
+  }
+
+  function runTest() {
+    info(window.opener == undefined);
+    start()
+      .then(testAuxiliaryWindow)
+      .then(testNestedWindow)
+      .then(unregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_match_all_client_properties.html b/dom/serviceworkers/test/test_match_all_client_properties.html
new file mode 100644
index 0000000000..c8a0b448c2
--- /dev/null
+++ b/dom/serviceworkers/test/test_match_all_client_properties.html
@@ -0,0 +1,101 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1058311 - Test matchAll clients properties </title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+  var registration;
+  var clientURL = "match_all_clients/match_all_controlled.html";
+  function start() {
+    return navigator.serviceWorker.register("match_all_properties_worker.js",
+                                            { scope: "./match_all_clients/" })
+      .then((swr) => {
+        registration = swr;
+        return waitForState(swr.installing, 'activated', swr);
+      });
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  }
+
+  function getMessageListener() {
+    return new Promise(function(res, rej) {
+      window.onmessage = function(e) {
+        if (e.data.message === undefined) {
+          info("rejecting promise");
+          rej();
+          return;
+        }
+
+        ok(e.data.result, e.data.message);
+
+        if (!e.data.result) {
+          rej();
+        }
+        if (e.data.message == "DONE") {
+          info("DONE from: " + e.source);
+          res();
+        }
+      }
+    });
+  }
+
+  function testNestedWindow() {
+    var p = getMessageListener();
+
+    var content = document.getElementById("content");
+    ok(content, "Parent exists.");
+
+    iframe = document.createElement("iframe");
+
+    content.appendChild(iframe);
+    iframe.setAttribute('src', clientURL);
+
+    return p.then(() => content.removeChild(iframe));
+  }
+
+  function testAuxiliaryWindow() {
+    var p = getMessageListener();
+    var w = window.open(clientURL);
+
+    return p.then(() => w.close());
+  }
+
+  function runTest() {
+    info("catalin");
+    info(window.opener == undefined);
+    start()
+      .then(testAuxiliaryWindow)
+      .then(testNestedWindow)
+      .then(unregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_navigationPreload_disable_crash.html b/dom/serviceworkers/test/test_navigationPreload_disable_crash.html
new file mode 100644
index 0000000000..ea6439284d
--- /dev/null
+++ b/dom/serviceworkers/test/test_navigationPreload_disable_crash.html
@@ -0,0 +1,52 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Failure to create a Promise shouldn't crash</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+  async function runTest() {
+    const iframe = document.createElement('iframe');
+    document.getElementById("content").appendChild(iframe);
+
+    const serviceWorker = iframe.contentWindow.navigator.serviceWorker;
+    const worker = await iframe.contentWindow.navigator.serviceWorker.register("empty.js", {});
+
+    iframe.remove();
+
+    // We can't wait for this promise to settle, because the global's
+    // browsing context has been discarded when the iframe was removed.
+    // We're just checking if this call crashes, which would happen
+    // immediately, so ignoring the promise should be fine.
+    worker.navigationPreload.disable();
+    ok(true, "navigationPreload.disable() failed but didn't crash.");
+
+    SimpleTest.finish();
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  // We can't call unregister on the worker after its browsing context has been
+  // discarded, so use SpecialPowers.removeAllServiceWorkerData.
+  SimpleTest.registerCleanupFunction(() => SpecialPowers.removeAllServiceWorkerData());
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.navigationPreload.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_navigator.html b/dom/serviceworkers/test/test_navigator.html
new file mode 100644
index 0000000000..aaac04e926
--- /dev/null
+++ b/dom/serviceworkers/test/test_navigator.html
@@ -0,0 +1,40 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 930348 - test stub Navigator ServiceWorker utilities.</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  function checkEnabled() {
+    ok(navigator.serviceWorker, "navigator.serviceWorker should exist when ServiceWorkers are enabled.");
+    ok(typeof navigator.serviceWorker.register === "function", "navigator.serviceWorker.register() should be a function.");
+    ok(typeof navigator.serviceWorker.getRegistration === "function", "navigator.serviceWorker.getAll() should be a function.");
+    ok(typeof navigator.serviceWorker.getRegistrations === "function", "navigator.serviceWorker.getAll() should be a function.");
+    ok(navigator.serviceWorker.ready instanceof Promise, "navigator.serviceWorker.ready should be a Promise.");
+    ok(navigator.serviceWorker.controller === null, "There should be no controller worker for an uncontrolled document.");
+  }
+
+  SimpleTest.waitForExplicitFinish();
+
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, function() {
+    checkEnabled();
+    SimpleTest.finish();
+  });
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_nofetch_handler.html b/dom/serviceworkers/test/test_nofetch_handler.html
new file mode 100644
index 0000000000..0725a68561
--- /dev/null
+++ b/dom/serviceworkers/test/test_nofetch_handler.html
@@ -0,0 +1,57 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for Bugs 1181127 and 1325101</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="error_reporting_helpers.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+  <meta http-equiv="Content-type" content="text/html;charset=UTF-8">
+</head>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1181127">Mozilla Bug 1181127</a>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1181127">Mozilla Bug 1325101</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+</pre>
+
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+
+add_task(function setupPrefs() {
+  return SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    // Make sure the event handler during the install event persists. This ensures
+    // the reason for which the interception doesn't occur is because of the
+    // handlesFetch=false flag from ServiceWorkerInfo.
+    ["dom.serviceWorkers.idle_timeout", 299999],
+  ]});
+});
+
+var iframeg;
+function create_iframe(url) {
+  return new Promise(function(res) {
+    iframe = document.createElement('iframe');
+    iframe.src = url;
+    iframe.onload = function() { res(iframe) }
+    document.body.appendChild(iframe);
+    iframeg = iframe;
+  })
+}
+
+add_task(async function test_nofetch_worker() {
+  let registration = await navigator.serviceWorker.register(
+    "nofetch_handler_worker.js", { scope: "./nofetch_handler_worker/"} )
+    .then(swr => waitForState(swr.installing, 'activated', swr));
+
+  let iframe = await create_iframe("./nofetch_handler_worker/doesnt_exist.html");
+  ok(!iframe.contentDocument.body.innerHTML.includes("intercepted"), "Request was not intercepted.");
+
+  await SpecialPowers.popPrefEnv();
+  await registration.unregister();
+});
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_not_intercept_plugin.html b/dom/serviceworkers/test/test_not_intercept_plugin.html
new file mode 100644
index 0000000000..4e7654deea
--- /dev/null
+++ b/dom/serviceworkers/test/test_not_intercept_plugin.html
@@ -0,0 +1,75 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1187766 - Test loading plugins scenarios with fetch interception.</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+  SimpleTest.requestCompleteLog();
+
+  var registration;
+  function simpleRegister() {
+    var p = navigator.serviceWorker.register("./fetch/plugin/worker.js", { scope: "./fetch/plugin/" });
+    return p.then(function(swr) {
+      registration = swr;
+      return waitForState(swr.installing, 'activated');
+    });
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(success) {
+      ok(success, "Service worker should be unregistered successfully");
+    }, function(e) {
+      dump("SW unregistration error: " + e + "\n");
+    });
+  }
+
+  function testPlugins() {
+    var p = new Promise(function(resolve, reject) {
+      window.onmessage = function(e) {
+        if (e.data.status == "ok") {
+          ok(e.data.result, e.data.message);
+        } else if (e.data.status == "done") {
+          window.onmessage = null;
+          w.close();
+          resolve();
+        }
+      }
+    });
+
+    var w = window.open("fetch/plugin/plugins.html");
+    return p;
+  }
+
+  function runTest() {
+    simpleRegister()
+      .then(testPlugins)
+      .then(unregister)
+      .then(function() {
+        SimpleTest.finish();
+      }).catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+        SimpleTest.finish();
+      });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_notification_constructor_error.html b/dom/serviceworkers/test/test_notification_constructor_error.html
new file mode 100644
index 0000000000..46d93e781f
--- /dev/null
+++ b/dom/serviceworkers/test/test_notification_constructor_error.html
@@ -0,0 +1,51 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug XXXXXXX - Check that Notification constructor throws in ServiceWorkerGlobalScope</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/MockServices.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/NotificationTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  function simpleRegister() {
+    return navigator.serviceWorker.register("notification_constructor_error.js", { scope: "notification_constructor_error/" }).then(function(swr) {
+      ok(false, "Registration should fail.");
+    }, function(e) {
+      is(e.name, 'TypeError', "Registration should fail with a TypeError.");
+    });
+  }
+
+  function runTest() {
+    MockServices.register();
+    simpleRegister()
+      .then(function() {
+        MockServices.unregister();
+        SimpleTest.finish();
+      }).catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+        MockServices.unregister();
+        SimpleTest.finish();
+      });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["notification.prompt.testing", true],
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_notification_get.html b/dom/serviceworkers/test/test_notification_get.html
new file mode 100644
index 0000000000..e4e8edb8b9
--- /dev/null
+++ b/dom/serviceworkers/test/test_notification_get.html
@@ -0,0 +1,137 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>ServiceWorkerRegistration.getNotifications() on main thread and worker thread.</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/MockServices.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/NotificationTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script type="text/javascript">
+
+  SimpleTest.requestFlakyTimeout("untriaged");
+
+  function testFrame(src) {
+    return new Promise(function(resolve, reject) {
+      var iframe = document.createElement("iframe");
+      iframe.src = src;
+      window.callback = function(result) {
+        iframe.src = "about:blank";
+        document.body.removeChild(iframe);
+        iframe = null;
+        SpecialPowers.exactGC(function() {
+          resolve(result);
+        });
+      };
+      document.body.appendChild(iframe);
+    });
+  }
+
+  function registerSW() {
+    return testFrame('notification/register.html').then(function() {
+      ok(true, "Registered service worker.");
+    });
+  }
+
+  async function unregisterSW() {
+    const reg = await navigator.serviceWorker.getRegistration("./notification/");
+    await reg.unregister();
+  }
+
+  function testDismiss() {
+    // Dismissed persistent notifications should be removed from the
+    // notification list.
+    var alertsService = SpecialPowers.Cc["@mozilla.org/alerts-service;1"]
+                                     .getService(SpecialPowers.Ci.nsIAlertsService);
+    return navigator.serviceWorker.getRegistration("./notification/")
+      .then(function(reg) {
+        return reg.showNotification(
+          "This is a notification that will be closed", { tag: "dismiss" })
+          .then(function() {
+            return reg;
+          });
+      }).then(function(reg) {
+        return reg.getNotifications()
+          .then(function(notifications) {
+            is(notifications.length, 1, "There should be one visible notification");
+            is(notifications[0].tag, "dismiss", "Tag should match");
+
+            // Simulate dismissing the notification by using the alerts service
+            // directly, instead of `Notification#close`.
+            var principal = SpecialPowers.wrap(document).nodePrincipal;
+            var id = principal.origin + "#tag:dismiss";
+            alertsService.closeAlert(id, principal);
+
+            return reg;
+          });
+      }).then(function(reg) {
+        return reg.getNotifications();
+      }).then(function(notifications) {
+        // Make sure dismissed notifications are no longer retrieved.
+        is(notifications.length, 0, "There should be no more stored notifications");
+      });
+  }
+
+  function testGet() {
+    var options = NotificationTest.payload;
+    return navigator.serviceWorker.getRegistration("./notification/")
+      .then(function(reg) {
+        return reg.showNotification("This is a title", options)
+                 .then(function() {
+                  return reg;
+                 });
+      }).then(function(reg) {
+        return reg.getNotifications();
+      }).then(function(notifications) {
+        is(notifications.length, 1, "There should be one stored notification");
+        var notification = notifications[0];
+        ok(notification instanceof Notification, "Should be a Notification");
+        is(notification.title, "This is a title", "Title should match");
+        for (var key in options) {
+          is(notification[key], options[key], key + " property should match");
+        }
+        notification.close();
+      }).then(function() {
+        return navigator.serviceWorker.getRegistration("./notification/").then(function(reg) {
+          return reg.getNotifications();
+        });
+      }).then(function(notifications) {
+        // Make sure closed notifications are no longer retrieved.
+        is(notifications.length, 0, "There should be no more stored notifications");
+      }).catch(function(e) {
+        ok(false, "Something went wrong " + e.message);
+      })
+  }
+
+  function testGetWorker() {
+    todo(false, "navigator.serviceWorker is not available on workers yet");
+    return Promise.resolve();
+  }
+
+  SimpleTest.waitForExplicitFinish();
+
+  MockServices.register();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["dom.webnotifications.serviceworker.enabled", true],
+    ["notification.prompt.testing", true],
+  ]}, function() {
+    registerSW()
+      .then(testGet)
+      .then(testGetWorker)
+      .then(testDismiss)
+      .then(unregisterSW)
+      .then(function() {
+        MockServices.unregister();
+        SimpleTest.finish();
+      });
+  });
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_notification_openWindow.html b/dom/serviceworkers/test/test_notification_openWindow.html
new file mode 100644
index 0000000000..8665fb3e22
--- /dev/null
+++ b/dom/serviceworkers/test/test_notification_openWindow.html
@@ -0,0 +1,90 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1578070</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="utils.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/MockServices.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/NotificationTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+// eslint-disable-next-line mozilla/no-addtask-setup
+add_task(async function setup() {
+  await SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["dom.webnotifications.serviceworker.enabled", true],
+    ["notification.prompt.testing", true],
+    ["dom.serviceWorkers.disable_open_click_delay", 1000],
+    ["dom.serviceWorkers.idle_timeout", 299999],
+    ["dom.serviceWorkers.idle_extended_timeout", 299999]
+  ]});
+
+  MockServices.register();
+  SimpleTest.requestFlakyTimeout("Mock alert service dispatches show and click events.");
+  SimpleTest.registerCleanupFunction(() => {
+    MockServices.unregister();
+  });
+});
+
+add_task(async function test() {
+  info("Registering service worker.");
+  let swr = await navigator.serviceWorker.register("notification_openWindow_worker.js");
+  await waitForState(swr.installing, "activated");
+
+  SimpleTest.registerCleanupFunction(async () => {
+    await swr.unregister();
+    navigator.serviceWorker.onmessage = null;
+  });
+
+  for (let prefValue of [
+    SpecialPowers.Ci.nsIBrowserDOMWindow.OPEN_CURRENTWINDOW,
+    SpecialPowers.Ci.nsIBrowserDOMWindow.OPEN_NEWWINDOW,
+    SpecialPowers.Ci.nsIBrowserDOMWindow.OPEN_NEWTAB,
+  ]) {
+    if (prefValue == SpecialPowers.Ci.nsIBrowserDOMWindow.OPEN_CURRENTWINDOW) {
+      // Let's open a new tab and focus on it. When the service
+      // worker notification is shown, the document will open in the focused tab.
+      // If we don't open a new tab, the document will be opened in the
+      // current test-runner tab and mess up the test setup.
+      window.open("");
+    }
+    info(`Setting browser.link.open_newwindow to ${prefValue}.`);
+    await SpecialPowers.pushPrefEnv({
+      set: [["browser.link.open_newwindow", prefValue]],
+    });
+
+    // The onclicknotification handler uses Clients.openWindow() to open a new
+    // window. This newly created window will attempt to open another window with
+    // Window.open() and some arbitrary URL. We crash before the second window
+    // finishes loading.
+    info("Showing notification.");
+    await swr.showNotification("notification");
+
+    info("Waiting for \"DONE\" from worker.");
+    await new Promise(resolve => {
+      navigator.serviceWorker.onmessage = event => {
+        if (event.data !== "DONE") {
+          ok(false, `Unexpected message from service worker: ${JSON.stringify(event.data)}`);
+        }
+        resolve();
+      }
+    });
+
+    // If we make it here, then we didn't crash.
+    ok(true, "Didn't crash!");
+
+    navigator.serviceWorker.onmessage = null;
+  }
+});
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_notificationclick-otherwindow.html b/dom/serviceworkers/test/test_notificationclick-otherwindow.html
new file mode 100644
index 0000000000..e4c7a98edb
--- /dev/null
+++ b/dom/serviceworkers/test/test_notificationclick-otherwindow.html
@@ -0,0 +1,64 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=916893
+-->
+<head>
+  <title>Bug 1114554 - Test ServiceWorkerGlobalScope.notificationclick event.</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/MockServices.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/NotificationTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1114554">Bug 1114554</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+</div>
+<pre id="test">
+</pre>
+<script src="utils.js"></script>
+<script type="text/javascript">
+  SimpleTest.requestFlakyTimeout("Mock alert service dispatches show and click events.");
+
+  function testFrame(src) {
+    var iframe = document.createElement("iframe");
+    iframe.src = src;
+    window.callback = function(result) {
+      window.callback = null;
+      document.body.removeChild(iframe);
+      iframe = null;
+      ok(result, "Got notificationclick event with correct data.");
+      MockServices.unregister();
+      registration.unregister().then(function() {
+        SimpleTest.finish();
+      });
+    };
+    document.body.appendChild(iframe);
+  }
+
+  var registration;
+
+  function runTest() {
+    MockServices.register();
+    navigator.serviceWorker.register("notificationclick.js", { scope: "notificationclick-otherwindow.html" }).then(function(reg) {
+      registration = reg;
+      return waitForState(reg.installing, 'activated');
+    }, function(e) {
+      ok(false, "registration should have passed!");
+    }).then(() => {
+      testFrame('notificationclick-otherwindow.html');
+    });
+  };
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["dom.webnotifications.serviceworker.enabled", true],
+    ["notification.prompt.testing", true],
+  ]}, runTest);
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_notificationclick.html b/dom/serviceworkers/test/test_notificationclick.html
new file mode 100644
index 0000000000..8c7af700a9
--- /dev/null
+++ b/dom/serviceworkers/test/test_notificationclick.html
@@ -0,0 +1,65 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=916893
+-->
+<head>
+  <title>Bug 1114554 - Test ServiceWorkerGlobalScope.notificationclick event.</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/MockServices.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/NotificationTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1114554">Bug 1114554</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+</div>
+<pre id="test">
+</pre>
+<script src="utils.js"></script>
+<script type="text/javascript">
+  SimpleTest.requestFlakyTimeout("Mock alert service dispatches show and click events.");
+
+  function testFrame(src) {
+    var iframe = document.createElement("iframe");
+    iframe.src = src;
+    window.callback = function(result) {
+      window.callback = null;
+      document.body.removeChild(iframe);
+      iframe = null;
+      ok(result, "Got notificationclick event with correct data.");
+      MockServices.unregister();
+      registration.unregister().then(function() {
+        SimpleTest.finish();
+      });
+    };
+    document.body.appendChild(iframe);
+  }
+
+  var registration;
+
+  function runTest() {
+    MockServices.register();
+    navigator.serviceWorker.register("notificationclick.js", { scope: "notificationclick.html" }).then(function(reg) {
+      registration = reg;
+      return waitForState(reg.installing, 'activated');
+    }, function(e) {
+      ok(false, "registration should have passed!");
+    }).then(() => {
+      // Now that we know the document will be controlled, create the frame.
+      testFrame('notificationclick.html');
+    });
+  };
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["dom.webnotifications.serviceworker.enabled", true],
+    ["notification.prompt.testing", true],
+  ]}, runTest);
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_notificationclick_focus.html b/dom/serviceworkers/test/test_notificationclick_focus.html
new file mode 100644
index 0000000000..d226c84852
--- /dev/null
+++ b/dom/serviceworkers/test/test_notificationclick_focus.html
@@ -0,0 +1,65 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=916893
+-->
+<head>
+  <title>Bug 1144660 - Test client.focus() permissions on notification click</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/MockServices.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/NotificationTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1114554">Bug 1114554</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+</div>
+<pre id="test">
+</pre>
+<script src="utils.js"></script>
+<script type="text/javascript">
+  SimpleTest.requestFlakyTimeout("Mock alert service dispatches show and click events.");
+
+  function testFrame(src) {
+    var iframe = document.createElement("iframe");
+    iframe.src = src;
+    window.callback = function(result) {
+      window.callback = null;
+      document.body.removeChild(iframe);
+      iframe = null;
+      ok(result, "All tests passed.");
+      MockServices.unregister();
+      registration.unregister().then(function() {
+        SimpleTest.finish();
+      });
+    };
+    document.body.appendChild(iframe);
+  }
+
+  var registration;
+
+  function runTest() {
+    MockServices.register();
+    navigator.serviceWorker.register("notificationclick_focus.js", { scope: "notificationclick_focus.html" }).then(function(reg) {
+      registration = reg;
+      return waitForState(reg.installing, 'activated');
+    }, function(e) {
+      ok(false, "registration should have passed!");
+    }).then(() => {
+      testFrame('notificationclick_focus.html');
+    });
+  };
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["dom.webnotifications.serviceworker.enabled", true],
+    ["notification.prompt.testing", true],
+    ["dom.serviceWorkers.disable_open_click_delay", 1000],
+  ]}, runTest);
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_notificationclose.html b/dom/serviceworkers/test/test_notificationclose.html
new file mode 100644
index 0000000000..15241445d9
--- /dev/null
+++ b/dom/serviceworkers/test/test_notificationclose.html
@@ -0,0 +1,66 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1265841
+-->
+<head>
+  <title>Bug 1265841 - Test ServiceWorkerGlobalScope.notificationclose event.</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/MockServices.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/NotificationTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1265841">Bug 1265841</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+</div>
+<pre id="test">
+</pre>
+<script src="utils.js"></script>
+<script type="text/javascript">
+  SimpleTest.requestFlakyTimeout("Mock alert service dispatches show, click, and close events.");
+
+  function testFrame(src) {
+    var iframe = document.createElement("iframe");
+    iframe.src = src;
+    window.callback = function(data) {
+      window.callback = null;
+      document.body.removeChild(iframe);
+      iframe = null;
+      ok(data.result, "Got notificationclose event with correct data.");
+      ok(!data.windowOpened,
+         "Shouldn't allow to openWindow in notificationclose");
+      MockServices.unregister();
+      registration.unregister().then(function() {
+        SimpleTest.finish();
+      });
+    };
+    document.body.appendChild(iframe);
+  }
+
+  var registration;
+
+  function runTest() {
+    MockServices.register();
+    navigator.serviceWorker.register("notificationclose.js", { scope: "notificationclose.html" }).then(function(reg) {
+      registration = reg;
+      return waitForState(reg.installing, 'activated');
+    }, function(e) {
+      ok(false, "registration should have passed!");
+    }).then(() => {
+      testFrame('notificationclose.html');
+    });
+  };
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["dom.webnotifications.serviceworker.enabled", true],
+    ["notification.prompt.testing", true],
+  ]}, runTest);
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_onmessageerror.html b/dom/serviceworkers/test/test_onmessageerror.html
new file mode 100644
index 0000000000..425b890951
--- /dev/null
+++ b/dom/serviceworkers/test/test_onmessageerror.html
@@ -0,0 +1,128 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test onmessageerror event handlers</title>
+  </head>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="utils.js"></script>
+  <script>
+    /**
+     * Test that ServiceWorkerGlobalScope and ServiceWorkerContainer handle
+     * `messageerror` events, using a test helper class `StructuredCloneTester`.
+     * Intances of this class can be configured to fail to serialize or
+     * deserialize, as it's difficult to artificially create the case where an
+     * object successfully serializes but fails to deserialize (which can be
+     * caused by out-of-memory failures or the target global not supporting a
+     * serialized interface).
+     */
+
+    let registration = null;
+    let serviceWorker = null;
+    let serviceWorkerContainer = null;
+    const swScript = 'onmessageerror_worker.js';
+
+    add_task(async () => {
+      await SpecialPowers.pushPrefEnv({
+        set: [
+          ['dom.serviceWorkers.enabled', true],
+          ['dom.serviceWorkers.testing.enabled', true],
+          ['dom.testing.structuredclonetester.enabled', true],
+        ],
+      });
+
+      swContainer = navigator.serviceWorker;
+
+      registration = await swContainer.register(swScript);
+      ok(registration, 'Service Worker regsisters');
+
+      serviceWorker = registration.installing;
+      await waitForState(serviceWorker, 'activated');
+    }); // setup
+
+    add_task(async () => {
+      const serializable = true;
+      const deserializable = true;
+      let sct = new StructuredCloneTester(serializable, deserializable);
+
+      const p = new Promise((resolve, reject) => {
+        function onMessage(e) {
+          const expectedBehavior = 'Serializable and deserializable ' +
+            'StructuredCloneTester serializes and deserializes';
+
+          is(e.data.received, 'message', expectedBehavior);
+          swContainer.removeEventListener('message', onMessage);
+          resolve();
+        }
+
+        swContainer.addEventListener('message', onMessage);
+      });
+
+      serviceWorker.postMessage({ serializable, deserializable, sct });
+
+      await p;
+    });
+
+    add_task(async () => {
+      const serializable = false;
+      // if it's not serializable, being deserializable or not doesn't matter
+      const deserializable = false;
+      let sct = new StructuredCloneTester(serializable, deserializable);
+
+      try {
+        serviceWorker.postMessage({ serializable, deserializable, sct });
+        ok(false, 'StructuredCloneTester serialization should have thrown -- ' +
+          'this line should not have been reached.');
+      } catch (e) {
+        const expectedBehavior = 'Unserializable StructuredCloneTester fails ' +
+          `to send, with exception name: ${e.name}`;
+        is(e.name, 'DataCloneError', expectedBehavior);
+      }
+    });
+
+    add_task(async () => {
+      const serializable = true;
+      const deserializable = false;
+      let sct = new StructuredCloneTester(serializable, deserializable);
+
+      const p = new Promise((resolve, reject) => {
+        function onMessage(e) {
+          const expectedBehavior = 'ServiceWorkerGlobalScope handles ' +
+            'messageerror events';
+
+          is(e.data.received, 'messageerror', expectedBehavior);
+          swContainer.removeEventListener('message', onMessage);
+          resolve();
+        }
+
+        swContainer.addEventListener('message', onMessage);
+      });
+
+      serviceWorker.postMessage({ serializable, deserializable, sct });
+
+      await p;
+    }); // test ServiceWorkerGlobalScope onmessageerror
+
+    add_task(async () => {
+      const p = new Promise((resolve, reject) => {
+        function onMessageError(e) {
+          ok(true, 'ServiceWorkerContainer handles messageerror events');
+          swContainer.removeEventListener('messageerror', onMessageError);
+          resolve();
+        }
+
+        swContainer.addEventListener('messageerror', onMessageError);
+      });
+
+      serviceWorker.postMessage('send-bad-message');
+
+      await p;
+    }); // test ServiceWorkerContainer onmessageerror
+
+    add_task(async () => {
+      await SpecialPowers.popPrefEnv();
+      ok(await registration.unregister(), 'Service Worker unregisters');
+    }); // teardown
+  </script>
+  <body>
+  </body>
+</html>
diff --git a/dom/serviceworkers/test/test_opaque_intercept.html b/dom/serviceworkers/test/test_opaque_intercept.html
new file mode 100644
index 0000000000..f0e40e0402
--- /dev/null
+++ b/dom/serviceworkers/test/test_opaque_intercept.html
@@ -0,0 +1,93 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 982726 - Test service worker post message </title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+  var registration;
+  function start() {
+    return navigator.serviceWorker.register("opaque_intercept_worker.js",
+                                            { scope: "./sw_clients/" })
+      .then((swr) => registration = swr);
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  }
+
+
+  function testOpaqueIntercept(swr) {
+    var p = new Promise(function(res, rej) {
+      var ready = false;
+      var scriptLoaded = false;
+      window.onmessage = function(e) {
+        if (e.data === "READY") {
+          ok(!ready, "ready message should only be received once");
+          ok(!scriptLoaded, "ready message should be received before script loaded");
+          if (ready) {
+            res();
+            return;
+          }
+          ready = true;
+          iframe.contentWindow.postMessage("REFRESH", "*");
+        } else if (e.data === "SCRIPT_LOADED") {
+          ok(ready, "script loaded should be received after ready");
+          ok(!scriptLoaded, "script loaded message should be received only once");
+          scriptLoaded = true;
+          res();
+        }
+      }
+    });
+
+    var content = document.getElementById("content");
+    ok(content, "Parent exists.");
+
+    var iframe = document.createElement("iframe");
+    iframe.setAttribute('src', "sw_clients/refresher.html");
+    content.appendChild(iframe);
+
+    // Our service worker waits for us to finish installing. If it didn't do
+    // this, then loading our frame would race with it becoming active,
+    // possibly intercepting the first load of the iframe. This guarantees
+    // that our iframe will load first directly from the network. Note that
+    // refresher.html explicitly waits for the service worker to transition to
+    // active.
+    registration.installing.postMessage("ready");
+
+    return p.then(() => content.removeChild(iframe));
+  }
+
+  function runTest() {
+    start()
+      .then(testOpaqueIntercept)
+      .then(unregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["dom.caches.enabled", true],
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_openWindow.html b/dom/serviceworkers/test/test_openWindow.html
new file mode 100644
index 0000000000..261927cc75
--- /dev/null
+++ b/dom/serviceworkers/test/test_openWindow.html
@@ -0,0 +1,111 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1172870
+-->
+<head>
+  <title>Bug 1172870 - Test clients.openWindow</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/MockServices.js"></script>
+  <script type="text/javascript" src="/tests/dom/notification/test/mochitest/NotificationTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1172870">Bug 1172870</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+</div>
+<pre id="test">
+</pre>
+<script src="utils.js"></script>
+<script type="text/javascript">
+  SimpleTest.requestFlakyTimeout("Mock alert service dispatches show and click events.");
+
+  function setup(ctx) {
+    MockServices.register();
+
+    return navigator.serviceWorker.register("openWindow_worker.js", {scope: "./"})
+      .then(function(swr) {
+        ok(swr, "Registration successful");
+        ctx.registration = swr;
+        return waitForState(swr.installing, 'activated', ctx);
+      });
+  }
+
+  function setupMessageHandler(ctx) {
+    return new Promise(function(res, rej) {
+      navigator.serviceWorker.onmessage = function(event) {
+        navigator.serviceWorker.onmessage = null;
+        for (i = 0; i < event.data.length; i++) {
+          ok(event.data[i].result, event.data[i].message);
+        }
+        res(ctx);
+      }
+    });
+  }
+
+  function testPopupNotAllowed(ctx) {
+    var p = setupMessageHandler(ctx);
+    ok(ctx.registration.active, "Worker is active.");
+    ctx.registration.active.postMessage("testNoPopup");
+
+    return p;
+  }
+
+  function testPopupAllowed(ctx) {
+    var p = setupMessageHandler(ctx);
+    ctx.registration.showNotification("testPopup");
+
+    return p;
+  }
+
+  function checkNumberOfWindows(ctx) {
+    return new Promise(function(res, rej) {
+      navigator.serviceWorker.onmessage = function(event) {
+        navigator.serviceWorker.onmessage = null;
+        for (i = 0; i < event.data.length; i++) {
+          ok(event.data[i].result, event.data[i].message);
+        }
+        res(ctx);
+      }
+      ctx.registration.active.postMessage("CHECK_NUMBER_OF_WINDOWS");
+    });
+  }
+
+  function clear(ctx) {
+    MockServices.unregister();
+
+    return ctx.registration.unregister().then(function(result) {
+      ctx.registration = null;
+      ok(result, "Unregister was successful.");
+    });
+  }
+
+  function runTest() {
+    setup({})
+      // Permission to allow popups persists for some time after a notification
+      // click event, so the order here is important.
+      .then(testPopupNotAllowed)
+      .then(testPopupAllowed)
+      .then(checkNumberOfWindows)
+      .then(clear)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["dom.webnotifications.serviceworker.enabled", true],
+    ["notification.prompt.testing", true],
+    ["dom.serviceWorkers.disable_open_click_delay", 1000],
+    ["dom.serviceWorkers.idle_timeout", 299999],
+    ["dom.serviceWorkers.idle_extended_timeout", 299999],
+    ["dom.securecontext.allowlist", "mochi.test,example.com"],
+  ]}, runTest);
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_origin_after_redirect.html b/dom/serviceworkers/test/test_origin_after_redirect.html
new file mode 100644
index 0000000000..e4c0af23be
--- /dev/null
+++ b/dom/serviceworkers/test/test_origin_after_redirect.html
@@ -0,0 +1,58 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test the origin of a redirected response from a service worker</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "/tests/dom/serviceworkers/test/fetch/origin/register.html";
+    var win;
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        win = window.open("/tests/dom/serviceworkers/test/fetch/origin/index.sjs", "mywindow", "width=100,height=100");
+      } else if (e.data.status == "domain") {
+        is(e.data.data, "example.org", "Correct domain expected");
+      } else if (e.data.status == "origin") {
+        is(e.data.data, "http://example.org", "Correct origin expected");
+      } else if (e.data.status == "done") {
+        win.close();
+        iframe.src = "/tests/dom/serviceworkers/test/fetch/origin/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        window.onmessage = null;
+        ok(true, "Test finished successfully");
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["dom.caches.enabled", true],
+      ["dom.security.https_first", false],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_origin_after_redirect_cached.html b/dom/serviceworkers/test/test_origin_after_redirect_cached.html
new file mode 100644
index 0000000000..ca79581ccf
--- /dev/null
+++ b/dom/serviceworkers/test/test_origin_after_redirect_cached.html
@@ -0,0 +1,58 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test the origin of a redirected response from a service worker</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "/tests/dom/serviceworkers/test/fetch/origin/register.html";
+    var win;
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        win = window.open("/tests/dom/serviceworkers/test/fetch/origin/index-cached.sjs", "mywindow", "width=100,height=100");
+      } else if (e.data.status == "domain") {
+        is(e.data.data, "example.org", "Correct domain expected");
+      } else if (e.data.status == "origin") {
+        is(e.data.data, "http://example.org", "Correct origin expected");
+      } else if (e.data.status == "done") {
+        win.close();
+        iframe.src = "/tests/dom/serviceworkers/test/fetch/origin/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        window.onmessage = null;
+        ok(true, "Test finished successfully");
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["dom.caches.enabled", true],
+      ["dom.security.https_first", false],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_origin_after_redirect_to_https.html b/dom/serviceworkers/test/test_origin_after_redirect_to_https.html
new file mode 100644
index 0000000000..927a68ef3a
--- /dev/null
+++ b/dom/serviceworkers/test/test_origin_after_redirect_to_https.html
@@ -0,0 +1,57 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test the origin of a redirected response from a service worker</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "/tests/dom/serviceworkers/test/fetch/origin/register.html";
+    var win;
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        win = window.open("/tests/dom/serviceworkers/test/fetch/origin/index-to-https.sjs", "mywindow", "width=100,height=100");
+      } else if (e.data.status == "domain") {
+        is(e.data.data, "example.org", "Correct domain expected");
+      } else if (e.data.status == "origin") {
+        is(e.data.data, "https://example.org", "Correct origin expected");
+      } else if (e.data.status == "done") {
+        win.close();
+        iframe.src = "/tests/dom/serviceworkers/test/fetch/origin/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        window.onmessage = null;
+        ok(true, "Test finished successfully");
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["dom.caches.enabled", true],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_origin_after_redirect_to_https_cached.html b/dom/serviceworkers/test/test_origin_after_redirect_to_https_cached.html
new file mode 100644
index 0000000000..29686e2302
--- /dev/null
+++ b/dom/serviceworkers/test/test_origin_after_redirect_to_https_cached.html
@@ -0,0 +1,57 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test the origin of a redirected response from a service worker</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  function runTest() {
+    iframe = document.querySelector("iframe");
+    iframe.src = "/tests/dom/serviceworkers/test/fetch/origin/register.html";
+    var win;
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        win = window.open("/tests/dom/serviceworkers/test/fetch/origin/index-to-https-cached.sjs", "mywindow", "width=100,height=100");
+      } else if (e.data.status == "domain") {
+        is(e.data.data, "example.org", "Correct domain expected");
+      } else if (e.data.status == "origin") {
+        is(e.data.data, "https://example.org", "Correct origin expected");
+      } else if (e.data.status == "done") {
+        win.close();
+        iframe.src = "/tests/dom/serviceworkers/test/fetch/origin/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        window.onmessage = null;
+        ok(true, "Test finished successfully");
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["dom.caches.enabled", true],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_post_message.html b/dom/serviceworkers/test/test_post_message.html
new file mode 100644
index 0000000000..b72f948dd6
--- /dev/null
+++ b/dom/serviceworkers/test/test_post_message.html
@@ -0,0 +1,80 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 982726 - Test service worker post message </title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+  var magic_value = "MAGIC_VALUE_123";
+  var registration;
+  function start() {
+    return navigator.serviceWorker.register("message_posting_worker.js",
+                                            { scope: "./sw_clients/" })
+      .then(swr => waitForState(swr.installing, 'activated', swr))
+      .then((swr) => registration = swr);
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  }
+
+
+  function testPostMessage(swr) {
+    var p = new Promise(function(res, rej) {
+      window.onmessage = function(e) {
+        if (e.data === "READY") {
+          swr.active.postMessage(magic_value);
+        } else if (e.data === magic_value) {
+          ok(true, "Worker posted the correct value.");
+          res();
+        } else {
+          ok(false, "Wrong value. Expected: " + magic_value +
+                    ", got: " + e.data);
+          res();
+        }
+      }
+    });
+
+    var content = document.getElementById("content");
+    ok(content, "Parent exists.");
+
+    iframe = document.createElement("iframe");
+    iframe.setAttribute('src', "sw_clients/service_worker_controlled.html");
+    content.appendChild(iframe);
+
+    return p.then(() => content.removeChild(iframe));
+  }
+
+  function runTest() {
+    start()
+      .then(testPostMessage)
+      .then(unregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_post_message_advanced.html b/dom/serviceworkers/test/test_post_message_advanced.html
new file mode 100644
index 0000000000..580dfd3f07
--- /dev/null
+++ b/dom/serviceworkers/test/test_post_message_advanced.html
@@ -0,0 +1,109 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 982726 - Test service worker post message advanced </title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+  var registration;
+  var base = ["string", true, 42];
+  var blob = new Blob(["blob_content"]);
+  var file = new File(["file_content"], "file");
+  var obj = { body : "object_content" };
+
+  function readBlob(blobToRead) {
+    return new Promise(function(resolve, reject) {
+      var reader = new FileReader();
+      reader.onloadend = () => resolve(reader.result);
+      reader.readAsText(blobToRead);
+    });
+  }
+
+  function equals(v1, v2) {
+    return Promise.all([v1, v2]).then(function(val) {
+      ok(val[0] === val[1], "Values should match.");
+    });
+  }
+
+  function blob_equals(b1, b2) {
+    return equals(readBlob(b1), readBlob(b2));
+  }
+
+  function file_equals(f1, f2) {
+    return equals(f1.name, f2.name).then(blob_equals(f1, f2));
+  }
+
+  function obj_equals(o1, o2) {
+    return equals(o1.body, o2.body);
+  }
+
+  function start() {
+    return navigator.serviceWorker.register("message_posting_worker.js",
+                                            { scope: "./sw_clients/" })
+      .then(swr => waitForState(swr.installing, 'activated', swr))
+      .then((swr) => registration = swr);
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  }
+
+  function testPostMessageObject(object, test) {
+    var p = new Promise(function(res, rej) {
+      window.onmessage = function(e) {
+        if (e.data === "READY") {
+          registration.active.postMessage(object)
+        } else {
+          test(object, e.data).then(res);
+        }
+      }
+    });
+
+    var content = document.getElementById("content");
+    ok(content, "Parent exists.");
+
+    iframe = document.createElement("iframe");
+    iframe.setAttribute('src', "sw_clients/service_worker_controlled.html");
+    content.appendChild(iframe);
+
+    return p.then(() => content.removeChild(iframe));
+  }
+
+  function runTest() {
+    start()
+      .then(testPostMessageObject.bind(this, base[0], equals))
+      .then(testPostMessageObject.bind(this, base[1], equals))
+      .then(testPostMessageObject.bind(this, base[2], equals))
+      .then(testPostMessageObject.bind(this, blob, blob_equals))
+      .then(testPostMessageObject.bind(this, file, file_equals))
+      .then(testPostMessageObject.bind(this, obj, obj_equals))
+      .then(unregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_post_message_source.html b/dom/serviceworkers/test/test_post_message_source.html
new file mode 100644
index 0000000000..b72ebe3a7c
--- /dev/null
+++ b/dom/serviceworkers/test/test_post_message_source.html
@@ -0,0 +1,66 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1142015 - Test service worker post message source </title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+  var magic_value = "MAGIC_VALUE_RANDOM";
+  var registration;
+  function start() {
+    return navigator.serviceWorker.register("source_message_posting_worker.js",
+                                            { scope: "./nonexistent_scope/" })
+      .then((swr) => registration = swr);
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  }
+
+
+  function testPostMessage(swr) {
+    var p = new Promise(function(res, rej) {
+      navigator.serviceWorker.onmessage = function(e) {
+        ok(e.data === magic_value, "Worker posted the correct value.");
+        res();
+      }
+    });
+
+    ok(swr.installing, "Installing worker exists.");
+    swr.installing.postMessage(magic_value);
+    return p;
+  }
+
+
+  function runTest() {
+    start()
+      .then(testPostMessage)
+      .then(unregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_privateBrowsing.html b/dom/serviceworkers/test/test_privateBrowsing.html
new file mode 100644
index 0000000000..825e9542ea
--- /dev/null
+++ b/dom/serviceworkers/test/test_privateBrowsing.html
@@ -0,0 +1,103 @@
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+  <title>Test for ServiceWorker - Private Browsing</title>
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
+</head>
+<body>
+
+<script type="application/javascript">
+const {BrowserTestUtils} = ChromeUtils.import("resource://testing-common/BrowserTestUtils.jsm");
+
+var mainWindow;
+
+var contentPage = "http://mochi.test:8888/chrome/dom/workers/test/empty.html";
+var workerScope = "http://mochi.test:8888/chrome/dom/serviceworkers/test/";
+var workerURL = workerScope + "worker.js";
+
+function testOnWindow(aIsPrivate, aCallback) {
+  var win = mainWindow.OpenBrowserWindow({private: aIsPrivate});
+  win.addEventListener("load", function() {
+    win.addEventListener("DOMContentLoaded", function onInnerLoad() {
+      if (win.content.location.href != contentPage) {
+        BrowserTestUtils.loadURIString(win.gBrowser, contentPage);
+        return;
+      }
+
+      win.removeEventListener("DOMContentLoaded", onInnerLoad, true);
+      SimpleTest.executeSoon(function() { aCallback(win); });
+    }, true);
+  }, {capture: true, once: true});
+}
+
+function setupWindow() {
+  mainWindow = window.browsingContext.topChromeWindow;
+  runTest();
+}
+
+var wN;
+var registration;
+var wP;
+
+function testPrivateWindow() {
+  testOnWindow(true, function(aWin) {
+    wP = aWin;
+    ok(!wP.content.eval('"serviceWorker" in navigator'), "ServiceWorkers are not available for private windows");
+    runTest();
+  });
+}
+
+function doTests() {
+  testOnWindow(false, function(aWin) {
+    wN = aWin;
+    ok("serviceWorker" in wN.content.navigator, "ServiceWorkers are available for normal windows");
+
+    wN.content.navigator.serviceWorker.register(workerURL,
+                                                { scope: workerScope })
+      .then(function(aRegistration) {
+        registration = aRegistration;
+        ok(registration, "Registering a service worker in a normal window should succeed");
+
+        // Bug 1255621: We should be able to load a controlled document in a private window.
+        testPrivateWindow();
+      }, function(aError) {
+        ok(false, "Error registering worker in normal window: " + aError);
+        testPrivateWindow();
+      });
+  });
+}
+
+var steps = [
+  setupWindow,
+  doTests
+];
+
+function cleanup() {
+  wN.close();
+  wP.close();
+
+  SimpleTest.finish();
+}
+
+function runTest() {
+  if (!steps.length) {
+    registration.unregister().then(cleanup, cleanup);
+
+    return;
+  }
+
+  var step = steps.shift();
+  step();
+}
+
+SimpleTest.waitForExplicitFinish();
+SpecialPowers.pushPrefEnv({"set": [
+  ["dom.serviceWorkers.enabled", true],
+  ["dom.serviceWorkers.testing.enabled", true],
+  ["browser.startup.page", 0],
+  ["browser.startup.homepage_override.mstone", "ignore"],
+]}, runTest);
+
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_register_base.html b/dom/serviceworkers/test/test_register_base.html
new file mode 100644
index 0000000000..3a1f2f2621
--- /dev/null
+++ b/dom/serviceworkers/test/test_register_base.html
@@ -0,0 +1,34 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test that registering a service worker uses the docuemnt URI for the secure origin check</title>
+  <script type="text/javascript" src="http://mochi.test:8888/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="http://mochi.test:8888/tests/SimpleTest/test.css" />
+  <base href="https://mozilla.org/">
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  function runTest() {
+    ok(!("serviceWorker" in navigator), "ServiceWorkerContainer shouldn't be defined");
+    SimpleTest.finish();
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+    ]}, runTest);
+  };
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_register_https_in_http.html b/dom/serviceworkers/test/test_register_https_in_http.html
new file mode 100644
index 0000000000..096c3733a0
--- /dev/null
+++ b/dom/serviceworkers/test/test_register_https_in_http.html
@@ -0,0 +1,45 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1172948 - Test that registering a service worker from inside an HTTPS iframe embedded in an HTTP iframe doesn't work</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  function runTest() {
+    var iframe = document.createElement("iframe");
+    iframe.src = "https://example.com/tests/dom/serviceworkers/test/register_https.html";
+    document.body.appendChild(iframe);
+
+    window.onmessage = event => {
+      switch (event.data.type) {
+      case "ok":
+        ok(event.data.status, event.data.msg);
+        break;
+      case "done":
+        SimpleTest.finish();
+        break;
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+    ]}, runTest);
+  };
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_sandbox_intercept.html b/dom/serviceworkers/test/test_sandbox_intercept.html
new file mode 100644
index 0000000000..2aa120994f
--- /dev/null
+++ b/dom/serviceworkers/test/test_sandbox_intercept.html
@@ -0,0 +1,56 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1142727 - Test that sandboxed iframes are not intercepted</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content">
+<iframe id="normal-frame"></iframe>
+<iframe sandbox="allow-scripts" id="sandbox-frame"></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var normalFrame;
+  var sandboxFrame;
+  function runTest() {
+    normalFrame = document.getElementById("normal-frame");
+    sandboxFrame = document.getElementById("sandbox-frame");
+    normalFrame.src = "/tests/dom/serviceworkers/test/fetch/sandbox/register.html";
+    window.onmessage = function(e) {
+      if (e.data.status == "ok") {
+        ok(e.data.result, e.data.message);
+      } else if (e.data.status == "registrationdone") {
+        normalFrame.src = "about:blank";
+        sandboxFrame.src = "/tests/dom/serviceworkers/test/fetch/sandbox/index.html";
+      } else if (e.data.status == "done") {
+        sandboxFrame.src = "about:blank";
+        normalFrame.src = "/tests/dom/serviceworkers/test/fetch/sandbox/unregister.html";
+      } else if (e.data.status == "unregistrationdone") {
+        normalFrame.src = "about:blank";
+        window.onmessage = null;
+        ok(true, "Test finished successfully");
+        SimpleTest.finish();
+      }
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_sanitize.html b/dom/serviceworkers/test/test_sanitize.html
new file mode 100644
index 0000000000..dd6bd42c8f
--- /dev/null
+++ b/dom/serviceworkers/test/test_sanitize.html
@@ -0,0 +1,86 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1080109 - Clear ServiceWorker registrations for all domains</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  function start() {
+    const Cc = SpecialPowers.Cc;
+    const Ci = SpecialPowers.Ci;
+
+    function testNotIntercepted() {
+      testFrame("sanitize/frame.html").then(function(body) {
+        is(body, "FAIL", "Expected frame to not be controlled");
+        // No need to unregister since that already happened.
+        navigator.serviceWorker.getRegistration("sanitize/foo").then(function(reg) {
+          ok(reg === undefined, "There should no longer be a valid registration");
+        }, function(e) {
+          ok(false, "getRegistration() should not error");
+        }).then(function(e) {
+          SimpleTest.finish();
+        });
+      });
+    }
+
+    registerSW().then(function() {
+      return testFrame("sanitize/frame.html").then(function(body) {
+        is(body, "intercepted", "Expected serviceworker to intercept request");
+      });
+    }).then(function() {
+      return navigator.serviceWorker.getRegistration("sanitize/foo");
+    }).then(function(reg) {
+      reg.active.onstatechange = function(e) {
+        e.target.onstatechange = null;
+        is(e.target.state, "redundant", "On clearing data, serviceworker should become redundant");
+        testNotIntercepted();
+      };
+    }).then(function() {
+      SpecialPowers.removeAllServiceWorkerData();
+    });
+  }
+
+  function testFrame(src) {
+    return new Promise(function(resolve, reject) {
+      var iframe = document.createElement("iframe");
+      iframe.src = src;
+      window.onmessage = function(message) {
+        window.onmessage = null;
+        iframe.src = "about:blank";
+        document.body.removeChild(iframe);
+        iframe = null;
+        SpecialPowers.exactGC(function() {
+          resolve(message.data);
+        });
+      };
+      document.body.appendChild(iframe);
+    });
+  }
+
+  function registerSW() {
+    return testFrame("sanitize/register.html");
+  }
+
+  SimpleTest.waitForExplicitFinish();
+
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+  ]}, function() {
+    start();
+  });
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_sanitize_domain.html b/dom/serviceworkers/test/test_sanitize_domain.html
new file mode 100644
index 0000000000..d0f5f7f69a
--- /dev/null
+++ b/dom/serviceworkers/test/test_sanitize_domain.html
@@ -0,0 +1,89 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1080109 - Clear ServiceWorker registrations for specific domains</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  function start() {
+    const Cc = SpecialPowers.Cc;
+    const Ci = SpecialPowers.Ci;
+
+    function checkDomainRegistration(domain, exists) {
+      return testFrame("http://" + domain + "/tests/dom/serviceworkers/test/sanitize/example_check_and_unregister.html").then(function(body) {
+        if (body === "FAIL") {
+          ok(false, "Error acquiring registration or unregistering for " + domain);
+        } else {
+          if (exists) {
+            ok(body === true, "Expected " + domain + " to still have a registration.");
+          } else {
+            ok(body === false, "Expected " + domain + " to have no registration.");
+          }
+        }
+      });
+    }
+
+    registerSW().then(function() {
+      return testFrame("http://example.com/tests/dom/serviceworkers/test/sanitize/frame.html").then(function(body) {
+        is(body, "intercepted", "Expected serviceworker to intercept request");
+      });
+    }).then(function() {
+      return SpecialPowers.removeServiceWorkerDataForExampleDomain();
+    }).then(function() {
+      return checkDomainRegistration("prefixexample.com", true /* exists */)
+        .then(function(e) {
+          return checkDomainRegistration("example.com", false /* exists */);
+        }).then(function(e) {
+          SimpleTest.finish();
+        });
+    })
+  }
+
+  function testFrame(src) {
+    return new Promise(function(resolve, reject) {
+      var iframe = document.createElement("iframe");
+      iframe.src = src;
+      window.onmessage = function(message) {
+        window.onmessage = null;
+        iframe.src = "about:blank";
+        document.body.removeChild(iframe);
+        iframe = null;
+        SpecialPowers.exactGC(function() {
+          resolve(message.data);
+        });
+      };
+      document.body.appendChild(iframe);
+    });
+  }
+
+  function registerSW() {
+    return testFrame("http://example.com/tests/dom/serviceworkers/test/sanitize/register.html")
+           .then(function(e) {
+              // Register for prefixexample.com and then ensure it does not get unregistered.
+              return testFrame("http://prefixexample.com/tests/dom/serviceworkers/test/sanitize/register.html");
+            });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+  ]}, function() {
+    start();
+  });
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_scopes.html b/dom/serviceworkers/test/test_scopes.html
new file mode 100644
index 0000000000..77e997766d
--- /dev/null
+++ b/dom/serviceworkers/test/test_scopes.html
@@ -0,0 +1,143 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 984048 - Test scope glob matching.</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var scriptsAndScopes = [
+    [ "worker.js", "./sub/dir/"],
+    [ "worker.js", "./sub/dir" ],
+    [ "worker.js", "./sub/dir.html" ],
+    [ "worker.js", "./sub/dir/a" ],
+    [ "worker.js", "./sub" ],
+    [ "worker.js", "./star*" ], // '*' has no special meaning
+  ];
+
+  function registerWorkers() {
+    var registerArray = [];
+    scriptsAndScopes.forEach(function(item) {
+      registerArray.push(navigator.serviceWorker.register(item[0], { scope: item[1] }));
+    });
+
+    // Check register()'s step 4 which uses script's url with "./" as the scope if no scope is passed.
+    // The other tests already check step 5.
+    registerArray.push(navigator.serviceWorker.register("scope/scope_worker.js"));
+
+    // Check that SW cannot be registered for a scope "above" the script's location.
+    registerArray.push(new Promise(function(resolve, reject) {
+      navigator.serviceWorker.register("scope/scope_worker.js", { scope: "./" })
+        .then(function() {
+          ok(false, "registration scope has to be inside service worker script scope.");
+          reject();
+        }, function() {
+          ok(true, "registration scope has to be inside service worker script scope.");
+          resolve();
+        });
+    }));
+    return Promise.all(registerArray);
+  }
+
+  function unregisterWorkers() {
+    var unregisterArray = [];
+    scriptsAndScopes.forEach(function(item) {
+      var p = navigator.serviceWorker.getRegistration(item[1]);
+      unregisterArray.push(p.then(function(reg) {
+        return reg.unregister();
+      }));
+    });
+
+    unregisterArray.push(navigator.serviceWorker.getRegistration("scope/").then(function (reg) {
+      return reg.unregister();
+    }));
+
+    return Promise.all(unregisterArray);
+  }
+
+  async function testScopes() {
+    function chromeScriptSource() {
+      /* eslint-env mozilla/chrome-script */
+
+      let swm = Cc["@mozilla.org/serviceworkers/manager;1"]
+                  .getService(Ci.nsIServiceWorkerManager);
+      let secMan = Cc["@mozilla.org/scriptsecuritymanager;1"]
+                     .getService(Ci.nsIScriptSecurityManager);
+      addMessageListener("getScope", (msg) => {
+        let principal = secMan.createContentPrincipalFromOrigin(msg.principal);
+        try {
+          return { scope: swm.getScopeForUrl(principal, msg.path) };
+        } catch (e) {
+          return { exception: e.message };
+        }
+      });
+    }
+
+    let chromeScript = SpecialPowers.loadChromeScript(chromeScriptSource);
+    let docPrincipal = SpecialPowers.wrap(document).nodePrincipal.spec;
+
+    getScope = async (path) => {
+      let rv = await chromeScript.sendQuery("getScope", { principal: docPrincipal, path });
+      if (rv.exception)
+        throw rv.exception;
+      return rv.scope;
+    };
+
+    var base = new URL(".", document.baseURI);
+
+    function p(s) {
+      return base + s;
+    }
+
+    async function fail(fn) {
+      try {
+        await getScope(p("index.html"));
+        ok(false, "No registration");
+      } catch(e) {
+        ok(true, "No registration");
+      }
+    }
+
+    is(await getScope(p("sub.html")), p("sub"), "Scope should match");
+    is(await getScope(p("sub/dir.html")), p("sub/dir.html"), "Scope should match");
+    is(await getScope(p("sub/dir")), p("sub/dir"), "Scope should match");
+    is(await getScope(p("sub/dir/foo")), p("sub/dir/"), "Scope should match");
+    is(await getScope(p("sub/dir/afoo")), p("sub/dir/a"), "Scope should match");
+    is(await getScope(p("star*wars")), p("star*"), "Scope should match");
+    is(await getScope(p("scope/some_file.html")), p("scope/"), "Scope should match");
+    await fail("index.html");
+    await fail("sua.html");
+    await fail("star/a.html");
+  }
+
+  function runTest() {
+    registerWorkers()
+      .then(testScopes)
+      .then(unregisterWorkers)
+      .then(function() {
+        SimpleTest.finish();
+      }).catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+        SimpleTest.finish();
+      });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_script_loader_intercepted_js_cache.html b/dom/serviceworkers/test/test_script_loader_intercepted_js_cache.html
new file mode 100644
index 0000000000..d0073705bb
--- /dev/null
+++ b/dom/serviceworkers/test/test_script_loader_intercepted_js_cache.html
@@ -0,0 +1,224 @@
+<!DOCTYPE html>
+<html>
+<!-- https://bugzilla.mozilla.org/show_bug.cgi?id=1350359 -->
+<!-- The JS bytecode cache is not supposed to be observable. To make it
+     observable, the ScriptLoader is instrumented to trigger events on the
+     script tag. These events are followed to reconstruct the code path taken by
+     the script loader and associate a simple name which is checked in these
+     test cases.
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for saving and loading bytecode in/from the necko cache</title>
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+  <script src="utils.js"></script>
+  <script type="application/javascript">
+
+    // This is the state machine of the trace events produced by the
+    // ScriptLoader. This state machine is used to give a name to each
+    // code path, such that we can assert each code path with a single word.
+    var scriptLoaderStateMachine = {
+      "scriptloader_load_source": {
+        "scriptloader_execute": {
+          "scriptloader_encode": {
+            "scriptloader_bytecode_saved": "bytecode_saved",
+            "scriptloader_bytecode_failed": "bytecode_failed"
+          },
+          "scriptloader_no_encode": "source_exec"
+        }
+      },
+      "scriptloader_load_bytecode": {
+        "scriptloader_fallback": {
+          // Replicate the top-level state machine without
+          // "scriptloader_load_bytecode" transition.
+          "scriptloader_load_source": {
+            "scriptloader_execute": {
+              "scriptloader_encode": {
+                "scriptloader_bytecode_saved": "fallback_bytecode_saved",
+                "scriptloader_bytecode_failed": "fallback_bytecode_failed"
+              },
+              "scriptloader_no_encode": "fallback_source_exec"
+            }
+          }
+        },
+        "scriptloader_execute": "bytecode_exec"
+      }
+    };
+
+    var gScript = SpecialPowers.
+      loadChromeScript('http://mochi.test:8888/tests/dom/serviceworkers/test/file_js_cache_cleanup.js');
+
+    function WaitForScriptTagEvent(url) {
+      var iframe = document.createElement("iframe");
+      document.body.appendChild(iframe);
+
+      var stateMachine = scriptLoaderStateMachine;
+      var stateHistory = [];
+      var stateMachineResolve, stateMachineReject;
+      var statePromise = new Promise((resolve, reject) => {
+        stateMachineResolve = resolve;
+        stateMachineReject = reject;
+      });
+      var ping = 0;
+
+      // Walk the script loader state machine with the emitted events.
+      function log_event(evt) {
+        // If we have multiple script tags in the loaded source, make sure
+        // we only watch a single one.
+        if (evt.target.id != "watchme")
+          return;
+
+        dump("## ScriptLoader event: " + evt.type + "\n");
+        stateHistory.push(evt.type)
+        if (typeof stateMachine == "object")
+          stateMachine = stateMachine[evt.type];
+        if (typeof stateMachine == "string") {
+          // We arrived to a final state, report the name of it.
+          var result = stateMachine;
+          if (ping) {
+            result = `${result} & ping(=${ping})`;
+          }
+          stateMachineResolve(result);
+        } else if (stateMachine === undefined) {
+          // We followed an unknown transition, report the known history.
+          stateMachineReject(stateHistory);
+        }
+      }
+
+        var iwin = iframe.contentWindow;
+      iwin.addEventListener("scriptloader_load_source", log_event);
+      iwin.addEventListener("scriptloader_load_bytecode", log_event);
+      iwin.addEventListener("scriptloader_generate_bytecode", log_event);
+      iwin.addEventListener("scriptloader_execute", log_event);
+      iwin.addEventListener("scriptloader_encode", log_event);
+      iwin.addEventListener("scriptloader_no_encode", log_event);
+      iwin.addEventListener("scriptloader_bytecode_saved", log_event);
+      iwin.addEventListener("scriptloader_bytecode_failed", log_event);
+      iwin.addEventListener("scriptloader_fallback", log_event);
+      iwin.addEventListener("ping", (evt) => {
+        ping += 1;
+        dump(`## Content event: ${evt.type} (=${ping})\n`);
+      });
+      iframe.src = url;
+
+      statePromise.then(() => {
+        document.body.removeChild(iframe);
+      });
+      return statePromise;
+    }
+
+    promise_test(async function() {
+      // Setting dom.expose_test_interfaces pref causes the
+      // nsScriptLoadRequest to fire event on script tags, with information
+      // about its internal state. The ScriptLoader source send events to
+      // trace these and resolve a promise with the path taken by the
+      // script loader.
+      //
+      // Setting dom.script_loader.bytecode_cache.strategy to -1 causes the
+      // nsScriptLoadRequest to force all the conditions necessary to make a
+      // script be saved as bytecode in the alternate data storage provided
+      // by the channel (necko cache).
+      await SpecialPowers.pushPrefEnv({set: [
+        ["dom.serviceWorkers.enabled", true],
+        ["dom.serviceWorkers.testing.enabled", true],
+        ['dom.script_loader.bytecode_cache.enabled', true],
+        ['dom.expose_test_interfaces', true],
+        ['dom.script_loader.bytecode_cache.strategy', -1]
+      ]});
+
+      // Register the service worker that perform the pass-through fetch.
+      var registration = await navigator.serviceWorker
+                                        .register("fetch.js", {scope: "./"});
+      let sw = registration.installing || registration.active;
+
+      // wait for service worker be activated
+      await waitForState(sw, 'activated');
+
+      await testCheckTheJSBytecodeCache();
+      await testSavebytecodeAfterTheInitializationOfThePage();
+      await testDoNotSaveBytecodeOnCompilationErrors();
+
+      await registration.unregister();
+      await teardown();
+    });
+
+    function teardown() {
+      return new Promise((resolve, reject) => {
+        gScript.addMessageListener("teardown-complete", function teardownCompleteHandler() {
+          gScript.removeMessageListener("teardown-complete", teardownCompleteHandler);
+          gScript.destroy();
+          resolve();
+        });
+        gScript.sendAsyncMessage("teardown");
+      });
+    }
+
+    async function testCheckTheJSBytecodeCache() {
+      dump("## Test: Check the JS bytecode cache\n");
+
+      // Load the test page, and verify that the code path taken by the
+      // nsScriptLoadRequest corresponds to the code path which is loading a
+      // source and saving it as bytecode.
+      var stateMachineResult = WaitForScriptTagEvent("file_js_cache.html");
+      assert_equals(await stateMachineResult, "bytecode_saved",
+                    "[1] ScriptLoadRequest status after the first visit");
+
+      // Reload the same test page, and verify that the code path taken by
+      // the nsScriptLoadRequest corresponds to the code path which is
+      // loading bytecode and executing it.
+      stateMachineResult = WaitForScriptTagEvent("file_js_cache.html");
+      assert_equals(await stateMachineResult, "bytecode_exec",
+                    "[2] ScriptLoadRequest status after the second visit");
+
+      // Load another page which loads the same script with an SRI, while
+      // the cached bytecode does not have any. This should fallback to
+      // loading the source before saving the bytecode once more.
+      stateMachineResult = WaitForScriptTagEvent("file_js_cache_with_sri.html");
+      assert_equals(await stateMachineResult, "fallback_bytecode_saved",
+                    "[3] ScriptLoadRequest status after the SRI hash");
+
+      // Loading a page, which has the same SRI should verify the SRI and
+      // continue by executing the bytecode.
+      var stateMachineResult1 = WaitForScriptTagEvent("file_js_cache_with_sri.html");
+
+      // Loading a page which does not have a SRI while we have one in the
+      // cache should not change anything. We should also be able to load
+      // the cache simultanesouly.
+      var stateMachineResult2 = WaitForScriptTagEvent("file_js_cache.html");
+
+      assert_equals(await stateMachineResult1, "bytecode_exec",
+                    "[4] ScriptLoadRequest status after same SRI hash");
+      assert_equals(await stateMachineResult2, "bytecode_exec",
+                    "[5] ScriptLoadRequest status after visit with no SRI");
+    }
+
+    async function testSavebytecodeAfterTheInitializationOfThePage() {
+      dump("## Test: Save bytecode after the initialization of the page");
+
+      // The test page add a new script which generate a "ping" event, which
+      // should be recorded before the bytecode is stored in the cache.
+      var stateMachineResult =
+          WaitForScriptTagEvent("file_js_cache_save_after_load.html");
+      assert_equals(await stateMachineResult, "bytecode_saved & ping(=3)",
+                    "Wait on all scripts to be executed");
+    }
+
+    async function testDoNotSaveBytecodeOnCompilationErrors() {
+      dump("## Test: Do not save bytecode on compilation errors");
+
+      // The test page loads a script which contains a syntax error, we should
+      // not attempt to encode any bytecode for it.
+      var stateMachineResult =
+          WaitForScriptTagEvent("file_js_cache_syntax_error.html");
+      assert_equals(await stateMachineResult, "source_exec",
+                    "Check the lack of bytecode encoding");
+    }
+
+  done();
+  </script>
+</head>
+<body>
+  <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1350359">Mozilla Bug 1350359</a>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_self_update_worker.html b/dom/serviceworkers/test/test_self_update_worker.html
new file mode 100644
index 0000000000..d6d4544dd9
--- /dev/null
+++ b/dom/serviceworkers/test/test_self_update_worker.html
@@ -0,0 +1,136 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+  Test that a self updating service worker can't keep running forever when the
+  script changes.
+
+  - self_update_worker.sjs is a stateful server-side js script that returns a
+  SW script with a different version every time it's invoked. (version=1..n)
+  - The SW script will trigger an update when it reaches the activating state,
+  which, if not for the update delaying mechanism, would result in an iterative
+  cycle.
+  - We currently delay registration.update() calls originating from SWs not currently
+  controlling any clients. The delay is: 0s, 30s, 900s etc, but for the purpose of
+  this test, the delay is: 0s, infinite etc.
+  - We assert that the SW script never reaches version 3, meaning it will only
+  successfully update once.
+  - We give the worker reasonable time to self update by repeatedly registering
+  and unregistering an empty service worker.
+  -->
+<head>
+  <title>Test for Bug 1432846</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="error_reporting_helpers.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+  <meta http-equiv="Content-type" content="text/html;charset=UTF-8">
+</head>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1432846">Mozilla Bug 1432846</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+</pre>
+
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+add_task(function setupPrefs() {
+  return SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+  ]});
+});
+
+function activateDummyWorker() {
+  return navigator.serviceWorker.register("empty.js",
+    { scope: "./empty?random=" + Date.now() })
+    .then(function(registration) {
+      var worker = registration.installing;
+      return waitForState(worker, 'activated', registration).then(function() {
+        ok(true, "got dummy!");
+        return registration.unregister();
+      });
+    });
+}
+
+add_task(async function test_update() {
+  navigator.serviceWorker.onmessage = function(event) {
+    ok (event.data.version < 3, "Service worker updated too many times." + event.data.version);
+  }
+
+  await SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.update_delay", 30000],
+    ["dom.serviceWorkers.idle_extended_timeout", 299999]]});
+
+  // clear version counter
+  await fetch("self_update_worker.sjs?clearcounter");
+
+  var worker;
+  let registration = await navigator.serviceWorker.register(
+    "self_update_worker.sjs",
+    { scope: "./test_self_update_worker.html?random=" + Date.now()})
+    .then(function(reg) {
+      worker = reg.installing;
+      // We can't wait for 'activated' here, since it's possible for
+      // the update process to kill the worker before it activates.
+      // See: https://github.com/w3c/ServiceWorker/issues/1285
+      return waitForState(worker, 'activating', reg);
+    });
+
+  // We need to wait a reasonable time to give the self updating worker a chance
+  // to change to a newer version. Register and activate an empty worker 5 times.
+  for (i = 0; i < 5; i++) {
+    await activateDummyWorker();
+  }
+
+
+  await registration.unregister();
+  await SpecialPowers.popPrefEnv();
+  await SpecialPowers.popPrefEnv();
+});
+
+// Test variant to ensure that we properly keep the timer alive by having a
+// non-zero but small timer duration. In this case, the delay is simply our
+// exponential growth rate of 30, so if we end up getting to version 4, that's
+// okay and the test may need to be updated.
+add_task(async function test_delay_update() {
+  let version;
+  navigator.serviceWorker.onmessage = function(event) {
+    ok (event.data.version <= 3, "Service worker updated too many times." + event.data.version);
+    version = event.data.version;
+  }
+
+  await SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.update_delay", 1],
+    ["dom.serviceWorkers.idle_extended_timeout", 299999]]});
+
+  // clear version counter
+  await fetch("self_update_worker.sjs?clearcounter");
+
+  var worker;
+  let registration = await navigator.serviceWorker.register(
+    "self_update_worker.sjs",
+    { scope: "./test_self_update_worker.html?random=" + Date.now()})
+    .then(function(reg) {
+      worker = reg.installing;
+      // We can't wait for 'activated' here, since it's possible for
+      // the update process to kill the worker before it activates.
+      // See: https://github.com/w3c/ServiceWorker/issues/1285
+      return waitForState(worker, 'activating', reg);
+    });
+
+  // We need to wait a reasonable time to give the self updating worker a chance
+  // to change to a newer version. Register and activate an empty worker 5 times.
+  for (i = 0; i < 5; i++) {
+    await activateDummyWorker();
+  }
+
+  is(version, 3, "Service worker version should be 3.");
+
+  await registration.unregister();
+  await SpecialPowers.popPrefEnv();
+  await SpecialPowers.popPrefEnv();
+});
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_service_worker_allowed.html b/dom/serviceworkers/test/test_service_worker_allowed.html
new file mode 100644
index 0000000000..a74379f383
--- /dev/null
+++ b/dom/serviceworkers/test/test_service_worker_allowed.html
@@ -0,0 +1,74 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test the Service-Worker-Allowed header</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<div id="content"></div>
+<script class="testbody" type="text/javascript">
+  var gTests = [
+    "worker_scope_different.js",
+    "worker_scope_different2.js",
+    "worker_scope_too_deep.js",
+  ];
+
+  function testPermissiveHeader() {
+    // Make sure that this registration succeeds, as the prefix check should pass.
+    return navigator.serviceWorker.register("swa/worker_scope_too_narrow.js", {scope: "swa/"})
+      .then(swr => {
+        ok(true, "Registration should finish successfully");
+        return swr.unregister();
+      }, err => {
+        ok(false, "Unexpected error when registering the service worker: " + err);
+      });
+  }
+
+  function testPreciseHeader() {
+    // Make sure that this registration succeeds, as the prefix check should pass
+    // given that we parse the use the full pathname from this URL..
+    return navigator.serviceWorker.register("swa/worker_scope_precise.js", {scope: "swa/"})
+      .then(swr => {
+        ok(true, "Registration should finish successfully");
+        return swr.unregister();
+      }, err => {
+        ok(false, "Unexpected error when registering the service worker: " + err);
+      });
+  }
+
+  function runTest() {
+    Promise.all(gTests.map(testName => {
+      return new Promise((resolve, reject) => {
+        // Make sure that registration fails.
+        navigator.serviceWorker.register("swa/" + testName, {scope: "swa/"})
+          .then(reject, resolve);
+      });
+    })).then(values => {
+      values.forEach(error => {
+        is(error.name, "SecurityError", "Registration should fail");
+      });
+      Promise.all([
+          testPermissiveHeader(),
+          testPreciseHeader(),
+      ]).then(SimpleTest.finish, SimpleTest.finish);
+    }, (x) => {
+      ok(false, "Registration should not succeed, but it did");
+      SimpleTest.finish();
+    });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_serviceworker.html b/dom/serviceworkers/test/test_serviceworker.html
new file mode 100644
index 0000000000..bfc5749405
--- /dev/null
+++ b/dom/serviceworkers/test/test_serviceworker.html
@@ -0,0 +1,79 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1137245 - Allow IndexedDB usage in ServiceWorkers</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+
+  var regisration;
+  function simpleRegister() {
+    return navigator.serviceWorker.register("service_worker.js", {
+      scope: 'service_worker_client.html'
+    }).then(swr => waitForState(swr.installing, 'activated', swr));
+  }
+
+  function unregister() {
+    return registration.unregister();
+  }
+
+  function testIndexedDBAvailable(sw) {
+    registration = sw;
+    var p = new Promise(function(resolve, reject) {
+      window.onmessage = function(e) {
+        if (e.data === "READY") {
+          sw.active.postMessage("GO");
+          return;
+        }
+
+        if (!("available" in e.data)) {
+          ok(false, "Something went wrong");
+          reject();
+          return;
+        }
+
+        ok(e.data.available, "IndexedDB available in service worker.");
+        resolve();
+      }
+    });
+
+    var content = document.getElementById("content");
+    ok(content, "Parent exists.");
+
+    iframe = document.createElement("iframe");
+    iframe.setAttribute('src', "service_worker_client.html");
+    content.appendChild(iframe);
+
+    return p.then(() => content.removeChild(iframe));
+  }
+
+  function runTest() {
+    simpleRegister()
+      .then(testIndexedDBAvailable)
+      .then(unregister)
+      .then(SimpleTest.finish)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+        SimpleTest.finish();
+      });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_serviceworker_header.html b/dom/serviceworkers/test/test_serviceworker_header.html
new file mode 100644
index 0000000000..f607aeba3d
--- /dev/null
+++ b/dom/serviceworkers/test/test_serviceworker_header.html
@@ -0,0 +1,41 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test that service worker scripts are fetched with a Service-Worker: script header</title>
+  <script type="text/javascript" src="http://mochi.test:8888/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="http://mochi.test:8888/tests/SimpleTest/test.css" />
+  <base href="https://mozilla.org/">
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  function runTest() {
+    navigator.serviceWorker.register("http://mochi.test:8888/tests/dom/serviceworkers/test/header_checker.sjs")
+      .then(reg => {
+        ok(true, "Register should succeed");
+        reg.unregister().then(() => SimpleTest.finish());
+      }, err => {
+        ok(false, "Register should not fail");
+        SimpleTest.finish();
+      });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+      ["dom.serviceWorkers.enabled", true],
+    ]}, runTest);
+  };
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_serviceworker_interfaces.html b/dom/serviceworkers/test/test_serviceworker_interfaces.html
new file mode 100644
index 0000000000..3b4ec19134
--- /dev/null
+++ b/dom/serviceworkers/test/test_serviceworker_interfaces.html
@@ -0,0 +1,116 @@
+<!-- Any copyright is dedicated to the Public Domain.
+   - http://creativecommons.org/publicdomain/zero/1.0/ -->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Validate Interfaces Exposed to Service Workers</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+  <script type="text/javascript" src="../worker_driver.js"></script>
+</head>
+<body>
+<script class="testbody" type="text/javascript">
+
+  function setupSW(registration) {
+    var iframe;
+    var worker = registration.installing ||
+                 registration.waiting ||
+                 registration.active;
+    window.onmessage = function(event) {
+      if (event.data.type == 'finish') {
+        iframe.remove();
+        registration.unregister().then(function(success) {
+          ok(success, "The service worker should be unregistered successfully");
+
+          SimpleTest.finish();
+        }, function(e) {
+          dump("Unregistering the SW failed with " + e + "\n");
+          SimpleTest.finish();
+        });
+      } else if (event.data.type == 'status') {
+        ok(event.data.status, event.data.msg);
+
+      } else if (event.data.type == 'getPrefs') {
+        let result = {};
+        event.data.prefs.forEach(function(pref) {
+          result[pref] = SpecialPowers.Services.prefs.getBoolPref(pref);
+        });
+        worker.postMessage({
+          type: 'returnPrefs',
+          prefs: event.data.prefs,
+          result
+        });
+
+      } else if (event.data.type == 'getHelperData') {
+        const { AppConstants } = SpecialPowers.ChromeUtils.import(
+          "resource://gre/modules/AppConstants.jsm"
+        );
+        const isNightly = AppConstants.NIGHTLY_BUILD;
+        const isEarlyBetaOrEarlier = AppConstants.EARLY_BETA_OR_EARLIER;
+        const isRelease = AppConstants.RELEASE_OR_BETA;
+        const isDesktop = !/Mobile|Tablet/.test(navigator.userAgent);
+        const isMac = AppConstants.platform == "macosx";
+        const isWindows = AppConstants.platform == "win";
+        const isAndroid = AppConstants.platform == "android";
+        const isLinux = AppConstants.platform == "linux";
+        const isInsecureContext = !window.isSecureContext;
+        // Currently, MOZ_APP_NAME is always "fennec" for all mobile builds, so we can't use AppConstants for this
+        const isFennec = isAndroid && SpecialPowers.Cc["@mozilla.org/android/bridge;1"].getService(SpecialPowers.Ci.nsIAndroidBridge).isFennec;
+
+        const result = {
+          isNightly, isEarlyBetaOrEarlier, isRelease, isDesktop, isMac,
+          isWindows, isAndroid, isLinux, isInsecureContext, isFennec
+        };
+
+        worker.postMessage({
+          type: 'returnHelperData', result
+        });
+      }
+    }
+
+    worker.onerror = function(event) {
+      ok(false, 'Worker had an error: ' + event.data);
+      SimpleTest.finish();
+    };
+
+    iframe = document.createElement("iframe");
+    iframe.src = "message_receiver.html";
+    iframe.onload = function() {
+      worker.postMessage({ script: "test_serviceworker_interfaces.js" });
+    };
+    document.body.appendChild(iframe);
+  }
+
+  function runTest() {
+    navigator.serviceWorker.register("serviceworker_wrapper.js", {scope: "."})
+      .then(setupSW);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    // The handling of "dom.caches.enabled" here is a bit complicated.  What we
+    // want to happen is that Cache is always enabled in service workers.  So
+    // if service workers are disabled by default we want to force on both
+    // service workers and "dom.caches.enabled".  But if service workers are
+    // enabled by default, we do not want to mess with the "dom.caches.enabled"
+    // value, since that would defeat the purpose of the test.  Use a subframe
+    // to decide whether service workers are enabled by default, so we don't
+    // force creation of our own Navigator object before our prefs are set.
+    var prefs = [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ];
+
+    var subframe = document.createElement("iframe");
+    document.body.appendChild(subframe);
+    if (!("serviceWorker" in subframe.contentWindow.navigator)) {
+	prefs.push(["dom.caches.enabled", true]);
+    }
+    subframe.remove();
+
+    SpecialPowers.pushPrefEnv({"set": prefs}, runTest);
+  };
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_serviceworker_interfaces.js b/dom/serviceworkers/test/test_serviceworker_interfaces.js
new file mode 100644
index 0000000000..d1dbfeb942
--- /dev/null
+++ b/dom/serviceworkers/test/test_serviceworker_interfaces.js
@@ -0,0 +1,567 @@
+// This is a list of all interfaces that are exposed to workers.
+// Please only add things to this list with great care and proper review
+// from the associated module peers.
+
+// This file lists global interfaces we want exposed and verifies they
+// are what we intend. Each entry in the arrays below can either be a
+// simple string with the interface name, or an object with a 'name'
+// property giving the interface name as a string, and additional
+// properties which qualify the exposure of that interface. For example:
+//
+// [
+//   "AGlobalInterface",
+//   { name: "ExperimentalThing", release: false },
+//   { name: "ReallyExperimentalThing", nightly: true },
+//   { name: "DesktopOnlyThing", desktop: true },
+//   { name: "FancyControl", xbl: true },
+//   { name: "DisabledEverywhere", disabled: true },
+// ];
+//
+// See createInterfaceMap() below for a complete list of properties.
+
+// IMPORTANT: Do not change this list without review from
+//            a JavaScript Engine peer!
+let wasmGlobalEntry = {
+  name: "WebAssembly",
+  insecureContext: true,
+  disabled: !getJSTestingFunctions().wasmIsSupportedByHardware(),
+};
+let wasmGlobalInterfaces = [
+  { name: "Module", insecureContext: true },
+  { name: "Instance", insecureContext: true },
+  { name: "Memory", insecureContext: true },
+  { name: "Table", insecureContext: true },
+  { name: "Global", insecureContext: true },
+  { name: "CompileError", insecureContext: true },
+  { name: "LinkError", insecureContext: true },
+  { name: "RuntimeError", insecureContext: true },
+  { name: "Function", insecureContext: true, nightly: true },
+  { name: "Exception", insecureContext: true },
+  { name: "Tag", insecureContext: true },
+  { name: "compile", insecureContext: true },
+  { name: "compileStreaming", insecureContext: true },
+  { name: "instantiate", insecureContext: true },
+  { name: "instantiateStreaming", insecureContext: true },
+  { name: "validate", insecureContext: true },
+];
+// IMPORTANT: Do not change this list without review from
+//            a JavaScript Engine peer!
+let ecmaGlobals = [
+  "AggregateError",
+  "Array",
+  "ArrayBuffer",
+  "Atomics",
+  "Boolean",
+  "BigInt",
+  "BigInt64Array",
+  "BigUint64Array",
+  "DataView",
+  "Date",
+  "Error",
+  "EvalError",
+  "FinalizationRegistry",
+  "Float32Array",
+  "Float64Array",
+  "Function",
+  "Infinity",
+  "Int16Array",
+  "Int32Array",
+  "Int8Array",
+  "InternalError",
+  "Intl",
+  "JSON",
+  "Map",
+  "Math",
+  "NaN",
+  "Number",
+  "Object",
+  "Promise",
+  "Proxy",
+  "RangeError",
+  "ReferenceError",
+  "Reflect",
+  "RegExp",
+  "Set",
+  {
+    name: "SharedArrayBuffer",
+    crossOriginIsolated: true,
+  },
+  "String",
+  "Symbol",
+  "SyntaxError",
+  "TypeError",
+  "Uint16Array",
+  "Uint32Array",
+  "Uint8Array",
+  "Uint8ClampedArray",
+  "URIError",
+  "WeakMap",
+  "WeakRef",
+  "WeakSet",
+  wasmGlobalEntry,
+  "decodeURI",
+  "decodeURIComponent",
+  "encodeURI",
+  "encodeURIComponent",
+  "escape",
+  "eval",
+  "globalThis",
+  "isFinite",
+  "isNaN",
+  "parseFloat",
+  "parseInt",
+  "undefined",
+  "unescape",
+];
+// IMPORTANT: Do not change the list above without review from
+//            a JavaScript Engine peer!
+
+// IMPORTANT: Do not change the list below without review from a DOM peer!
+let interfaceNamesInGlobalScope = [
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "AbortController",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "AbortSignal",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "Blob",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "BroadcastChannel",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ByteLengthQueuingStrategy",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "Cache",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "CacheStorage",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "CanvasGradient",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "CanvasPattern",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "Client",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "Clients",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "CloseEvent",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "CompressionStream",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "CountQueuingStrategy",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "Crypto",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "CryptoKey",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "CustomEvent",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "DecompressionStream",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "Directory",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "DOMException",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "DOMMatrix",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "DOMMatrixReadOnly",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "DOMPoint",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "DOMPointReadOnly",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "DOMQuad",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "DOMRect",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "DOMRectReadOnly",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "DOMRequest",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "DOMStringList",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ErrorEvent",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "Event",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "EventTarget",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ExtendableEvent",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ExtendableMessageEvent",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "FetchEvent",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "File",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "FileList",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "FileReader",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "FileSystemDirectoryHandle" },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "FileSystemFileHandle" },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "FileSystemHandle" },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "FileSystemWritableFileStream" },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "FontFace",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "FontFaceSet",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "FontFaceSetLoadEvent",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "FormData",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "Headers",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "IDBCursor",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "IDBCursorWithValue",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "IDBDatabase",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "IDBFactory",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "IDBIndex",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "IDBKeyRange",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "IDBObjectStore",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "IDBOpenDBRequest",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "IDBRequest",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "IDBTransaction",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "IDBVersionChangeEvent",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ImageBitmap",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ImageBitmapRenderingContext",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ImageData",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "Lock",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "LockManager",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "MediaCapabilities",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "MediaCapabilitiesInfo",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "MessageChannel",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "MessageEvent",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "MessagePort",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "NetworkInformation", disabled: true },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "NavigationPreloadManager",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "Notification",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "NotificationEvent",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "OffscreenCanvas",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "OffscreenCanvasRenderingContext2D",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "Path2D",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "Performance",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "PerformanceEntry",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "PerformanceMark",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "PerformanceMeasure",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "PerformanceObserver",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "PerformanceObserverEntryList",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "PerformanceResourceTiming",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "PerformanceServerTiming",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ProgressEvent",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "PromiseRejectionEvent",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "PushEvent" },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "PushManager" },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "PushMessageData" },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "PushSubscription" },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "PushSubscriptionOptions" },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ReadableByteStreamController",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ReadableStream",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ReadableStreamBYOBReader",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ReadableStreamBYOBRequest",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ReadableStreamDefaultController",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ReadableStreamDefaultReader",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "Request",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "Response",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "Scheduler", nightly: true },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ServiceWorker",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ServiceWorkerGlobalScope",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "ServiceWorkerRegistration",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "StorageManager", fennec: false },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "SubtleCrypto",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "TaskController", nightly: true },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "TaskPriorityChangeEvent", nightly: true },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "TaskSignal", nightly: true },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "TextDecoder",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "TextDecoderStream",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "TextEncoder",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "TextEncoderStream",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "TextMetrics",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "TransformStream",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "TransformStreamDefaultController",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "URL",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "URLSearchParams",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebSocket",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebTransport",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebTransportBidirectionalStream",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebTransportDatagramDuplexStream",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebTransportError",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebTransportReceiveStream",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebTransportSendStream",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGL2RenderingContext",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLActiveInfo",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLBuffer",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLContextEvent",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLFramebuffer",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLProgram",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLQuery",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLRenderbuffer",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLRenderingContext",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLSampler",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLShader",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLShaderPrecisionFormat",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLSync",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLTexture",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLTransformFeedback",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLUniformLocation",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WebGLVertexArrayObject",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WindowClient",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WorkerGlobalScope",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WorkerLocation",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WorkerNavigator",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WritableStream",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WritableStreamDefaultController",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "WritableStreamDefaultWriter",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "clients",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "console",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "onactivate",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "onfetch",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "oninstall",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "onmessage",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "onmessageerror",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "onnotificationclick",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "onnotificationclose",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "onpush",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "onpushsubscriptionchange",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "registration",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  "skipWaiting",
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+];
+// IMPORTANT: Do not change the list above without review from a DOM peer!
+
+// List of functions defined on the global by the test harness or this test
+// file.
+let testFunctions = [
+  "ok",
+  "is",
+  "workerTestArrayEquals",
+  "workerTestDone",
+  "workerTestGetHelperData",
+  "workerTestGetStorageManager",
+  "entryDisabled",
+  "createInterfaceMap",
+  "runTest",
+];
+
+function entryDisabled(
+  entry,
+  {
+    isNightly,
+    isEarlyBetaOrEarlier,
+    isRelease,
+    isDesktop,
+    isAndroid,
+    isInsecureContext,
+    isFennec,
+    isCrossOriginIsolated,
+  }
+) {
+  return (
+    entry.nightly === !isNightly ||
+    (entry.nightlyAndroid === !(isAndroid && isNightly) && isAndroid) ||
+    (entry.nonReleaseAndroid === !(isAndroid && !isRelease) && isAndroid) ||
+    entry.desktop === !isDesktop ||
+    (entry.android === !isAndroid &&
+      !entry.nonReleaseAndroid &&
+      !entry.nightlyAndroid) ||
+    entry.fennecOrDesktop === (isAndroid && !isFennec) ||
+    entry.fennec === !isFennec ||
+    entry.release === !isRelease ||
+    entry.earlyBetaOrEarlier === !isEarlyBetaOrEarlier ||
+    entry.crossOriginIsolated === !isCrossOriginIsolated ||
+    entry.disabled
+  );
+}
+
+function createInterfaceMap(data, ...interfaceGroups) {
+  var interfaceMap = {};
+
+  function addInterfaces(interfaces) {
+    for (var entry of interfaces) {
+      if (typeof entry === "string") {
+        ok(!(entry in interfaceMap), "duplicate entry for " + entry);
+        interfaceMap[entry] = true;
+      } else {
+        ok(!(entry.name in interfaceMap), "duplicate entry for " + entry.name);
+        ok(!("pref" in entry), "Bogus pref annotation for " + entry.name);
+        if (entryDisabled(entry, data)) {
+          interfaceMap[entry.name] = false;
+        } else if (entry.optional) {
+          interfaceMap[entry.name] = "optional";
+        } else {
+          interfaceMap[entry.name] = true;
+        }
+      }
+    }
+  }
+
+  for (let interfaceGroup of interfaceGroups) {
+    addInterfaces(interfaceGroup);
+  }
+
+  return interfaceMap;
+}
+
+function runTest(parentName, parent, data, ...interfaceGroups) {
+  var interfaceMap = createInterfaceMap(data, ...interfaceGroups);
+  for (var name of Object.getOwnPropertyNames(parent)) {
+    // Ignore functions on the global that are part of the test (harness).
+    if (parent === self && testFunctions.includes(name)) {
+      continue;
+    }
+    ok(
+      interfaceMap[name] === "optional" || interfaceMap[name],
+      "If this is failing: DANGER, are you sure you want to expose the new interface " +
+        name +
+        " to all webpages as a property on " +
+        parentName +
+        "? Do not make a change to this file without a " +
+        " review from a DOM peer for that specific change!!! (or a JS peer for changes to ecmaGlobals)"
+    );
+    delete interfaceMap[name];
+  }
+  for (var name of Object.keys(interfaceMap)) {
+    if (interfaceMap[name] === "optional") {
+      delete interfaceMap[name];
+    } else {
+      ok(
+        name in parent === interfaceMap[name],
+        name +
+          " should " +
+          (interfaceMap[name] ? "" : " NOT") +
+          " be defined on " +
+          parentName
+      );
+      if (!interfaceMap[name]) {
+        delete interfaceMap[name];
+      }
+    }
+  }
+  is(
+    Object.keys(interfaceMap).length,
+    0,
+    "The following interface(s) are not enumerated: " +
+      Object.keys(interfaceMap).join(", ")
+  );
+}
+
+workerTestGetHelperData(function (data) {
+  runTest("self", self, data, ecmaGlobals, interfaceNamesInGlobalScope);
+  if (WebAssembly && !entryDisabled(wasmGlobalEntry, data)) {
+    runTest("WebAssembly", WebAssembly, data, wasmGlobalInterfaces);
+  }
+  workerTestDone();
+});
diff --git a/dom/serviceworkers/test/test_serviceworker_not_sharedworker.html b/dom/serviceworkers/test/test_serviceworker_not_sharedworker.html
new file mode 100644
index 0000000000..33b4428e95
--- /dev/null
+++ b/dom/serviceworkers/test/test_serviceworker_not_sharedworker.html
@@ -0,0 +1,66 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1141274 - test that service workers and shared workers are separate</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+<iframe></iframe>
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  var iframe;
+  const SCOPE = "http://mochi.test:8888/tests/dom/serviceworkers/test/";
+  function runTest() {
+    navigator.serviceWorker.ready.then(setupSW);
+    navigator.serviceWorker.register("serviceworker_not_sharedworker.js",
+                                     {scope: SCOPE});
+  }
+
+  var sw, worker;
+  function setupSW(registration) {
+    sw = registration.waiting || registration.active;
+    worker = new SharedWorker("serviceworker_not_sharedworker.js", SCOPE);
+    worker.port.start();
+    iframe = document.querySelector("iframe");
+    iframe.src = "message_receiver.html";
+    iframe.onload = function() {
+      window.onmessage = function(e) {
+        is(e.data.result, "serviceworker", "We should be talking to a service worker");
+        window.onmessage = null;
+        worker.port.onmessage = function(msg) {
+          is(msg.data.result, "sharedworker", "We should be talking to a shared worker");
+          registration.unregister().then(function(success) {
+            ok(success, "unregister should succeed");
+            SimpleTest.finish();
+          }, function(ex) {
+            dump("Unregistering the SW failed with " + ex + "\n");
+            SimpleTest.finish();
+          });
+        };
+        worker.port.postMessage({msg: "whoareyou"});
+      };
+      sw.postMessage({msg: "whoareyou"});
+    };
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true]
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_serviceworkerinfo.xhtml b/dom/serviceworkers/test/test_serviceworkerinfo.xhtml
new file mode 100644
index 0000000000..a3b0fe8e53
--- /dev/null
+++ b/dom/serviceworkers/test/test_serviceworkerinfo.xhtml
@@ -0,0 +1,114 @@
+<?xml version="1.0"?>
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<window title="Test for ServiceWorkerInfo"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        onload="test();">
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
+  <script type="application/javascript" src="chrome_helpers.js"/>
+  <script type="application/javascript">
+  <![CDATA[
+
+    let IFRAME_URL = EXAMPLE_URL + "serviceworkerinfo_iframe.html";
+
+    function wait_for_active_worker(registration) {
+      ok(registration, "Registration is valid.");
+      return new Promise(function(res, rej) {
+        if (registration.activeWorker) {
+          res(registration);
+          return;
+        }
+        let listener = {
+          onChange: function() {
+            if (registration.activeWorker) {
+              registration.removeListener(listener);
+              res(registration);
+            }
+          }
+        }
+        registration.addListener(listener);
+      });
+    }
+
+    function test() {
+      SimpleTest.waitForExplicitFinish();
+
+      SpecialPowers.pushPrefEnv({'set': [
+        ["dom.serviceWorkers.enabled", true],
+        ["dom.serviceWorkers.idle_extended_timeout", 1000000],
+        ["dom.serviceWorkers.idle_timeout", 0],
+        ["dom.serviceWorkers.testing.enabled", true],
+      ]}, function () {
+        (async function() {
+          let iframe = $("iframe");
+          let promise = new Promise(function (resolve) {
+            iframe.onload = function () {
+              resolve();
+            };
+          });
+          iframe.src = IFRAME_URL;
+          await promise;
+
+          info("Check that a service worker eventually shuts down.");
+          promise = Promise.all([
+            waitForRegister(EXAMPLE_URL),
+            waitForServiceWorkerShutdown()
+          ]);
+          iframe.contentWindow.postMessage("register", "*");
+          let [registration] = await promise;
+
+          // Make sure the worker is active.
+          registration = await wait_for_active_worker(registration);
+
+          let activeWorker = registration.activeWorker;
+          ok(activeWorker !== null, "Worker is not active!");
+          ok(activeWorker.debugger === null);
+
+          info("Attach a debugger to the service worker, and check that the " +
+               "service worker is restarted.");
+          activeWorker.attachDebugger();
+          let workerDebugger = activeWorker.debugger;
+          ok(workerDebugger !== null);
+
+          // Verify debugger properties
+          ok(workerDebugger.principal instanceof Ci.nsIPrincipal);
+          is(workerDebugger.url, EXAMPLE_URL + "worker.js");
+
+          info("Verify that getRegistrationByPrincipal return the same " +
+               "nsIServiceWorkerRegistrationInfo");
+          let reg = swm.getRegistrationByPrincipal(workerDebugger.principal,
+                                                   workerDebugger.url);
+          is(reg, registration);
+
+          info("Check that getWorkerByID returns the same nsIWorkerDebugger");
+          is(activeWorker, reg.getWorkerByID(workerDebugger.serviceWorkerID));
+
+          info("Detach the debugger from the service worker, and check that " +
+               "the service worker eventually shuts down again.");
+          promise = waitForServiceWorkerShutdown();
+          activeWorker.detachDebugger();
+          await promise;
+          ok(activeWorker.debugger === null);
+
+          promise = waitForUnregister(EXAMPLE_URL);
+          iframe.contentWindow.postMessage("unregister", "*");
+          registration = await promise;
+
+          SimpleTest.finish();
+        })();
+      });
+    }
+
+  ]]>
+  </script>
+
+  <body xmlns="http://www.w3.org/1999/xhtml">
+    <p id="display"></p>
+    <div id="content" style="display:none;"></div>
+    <pre id="test"></pre>
+    <iframe id="iframe"></iframe>
+  </body>
+  <label id="test-result"/>
+</window>
diff --git a/dom/serviceworkers/test/test_serviceworkermanager.xhtml b/dom/serviceworkers/test/test_serviceworkermanager.xhtml
new file mode 100644
index 0000000000..b118b7d3f1
--- /dev/null
+++ b/dom/serviceworkers/test/test_serviceworkermanager.xhtml
@@ -0,0 +1,79 @@
+<?xml version="1.0"?>
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<window title="Test for ServiceWorkerManager"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        onload="test();">
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
+  <script type="application/javascript" src="chrome_helpers.js"/>
+  <script type="application/javascript">
+  <![CDATA[
+
+    let IFRAME_URL = EXAMPLE_URL + "serviceworkermanager_iframe.html";
+
+    function test() {
+      SimpleTest.waitForExplicitFinish();
+
+      SpecialPowers.pushPrefEnv({'set': [
+        ["dom.serviceWorkers.enabled", true],
+        ["dom.serviceWorkers.testing.enabled", true],
+      ]}, function () {
+        (async function() {
+          let registrations = swm.getAllRegistrations();
+          is(registrations.length, 0);
+
+          let iframe = $("iframe");
+          let promise = waitForIframeLoad(iframe);
+          iframe.src = IFRAME_URL;
+          await promise;
+
+          info("Check that the service worker manager notifies its listeners " +
+               "when a service worker is registered.");
+          promise = waitForRegister(EXAMPLE_URL);
+          iframe.contentWindow.postMessage("register", "*");
+          let registration = await promise;
+
+          registrations = swm.getAllRegistrations();
+          is(registrations.length, 1);
+          is(registrations.queryElementAt(0, Ci.nsIServiceWorkerRegistrationInfo),
+             registration);
+
+          info("Check that the service worker manager does not notify its " +
+               "listeners when a service worker is registered with the same " +
+               "scope as an existing registration.");
+          let listener = {
+            onRegister: function () {
+              ok(false, "Listener should not have been notified.");
+            }
+          };
+          swm.addListener(listener);
+          iframe.contentWindow.postMessage("register", "*");
+
+          info("Check that the service worker manager notifies its listeners " +
+               "when a service worker is unregistered.");
+          promise = waitForUnregister(EXAMPLE_URL);
+          iframe.contentWindow.postMessage("unregister", "*");
+          registration = await promise;
+          swm.removeListener(listener);
+
+          registrations = swm.getAllRegistrations();
+          is(registrations.length, 0);
+
+          SimpleTest.finish();
+        })();
+      });
+    }
+
+  ]]>
+  </script>
+
+  <body xmlns="http://www.w3.org/1999/xhtml">
+    <p id="display"></p>
+    <div id="content" style="display:none;"></div>
+    <pre id="test"></pre>
+    <iframe id="iframe"></iframe>
+  </body>
+  <label id="test-result"/>
+</window>
diff --git a/dom/serviceworkers/test/test_serviceworkerregistrationinfo.xhtml b/dom/serviceworkers/test/test_serviceworkerregistrationinfo.xhtml
new file mode 100644
index 0000000000..5b39350897
--- /dev/null
+++ b/dom/serviceworkers/test/test_serviceworkerregistrationinfo.xhtml
@@ -0,0 +1,155 @@
+<?xml version="1.0"?>
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<window title="Test for ServiceWorkerRegistrationInfo"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        onload="test();">
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
+  <script type="application/javascript" src="chrome_helpers.js"/>
+  <script type="application/javascript">
+  <![CDATA[
+
+    let IFRAME_URL = EXAMPLE_URL + "serviceworkerregistrationinfo_iframe.html";
+
+    function test() {
+      SimpleTest.waitForExplicitFinish();
+
+      SpecialPowers.pushPrefEnv({'set': [
+        ["dom.serviceWorkers.enabled", true],
+        ["dom.serviceWorkers.testing.enabled", true],
+      ]}, function () {
+        (async function() {
+          let iframe = $("iframe");
+          let promise = waitForIframeLoad(iframe);
+          iframe.src = IFRAME_URL;
+          await promise;
+
+          // The change handler is not guaranteed to be called within the same
+          // tick of the event loop as the one in which the change happened.
+          // Because of this, the exact state of the service worker registration
+          // is only known until the handler returns.
+          //
+          // Because then-handlers are resolved asynchronously, the following
+          // checks are done using callbacks, which are called synchronously
+          // when then handler is called. These callbacks can return a promise,
+          // which is used to resolve the promise returned by the function.
+
+          info("Check that a service worker registration notifies its " +
+               "listeners when its state changes.");
+          promise = waitForRegister(EXAMPLE_URL, function (registration) {
+            is(registration.scriptSpec, "");
+            ok(registration.installingWorker === null);
+            ok(registration.waitingWorker === null);
+            ok(registration.activeWorker === null);
+
+            return waitForServiceWorkerRegistrationChange(registration, function  () {
+              // Got change event for updating (byte-check)
+              ok(registration.installingWorker === null);
+              ok(registration.waitingWorker === null);
+              ok(registration.activeWorker === null);
+
+              return waitForServiceWorkerRegistrationChange(registration, function  () {
+                is(registration.scriptSpec, EXAMPLE_URL + "worker.js");
+                ok(registration.evaluatingWorker !== null);
+                ok(registration.installingWorker === null);
+                ok(registration.waitingWorker === null);
+                ok(registration.activeWorker === null);
+
+                return waitForServiceWorkerRegistrationChange(registration, function  () {
+                  ok(registration.installingWorker !== null);
+                  is(registration.installingWorker.scriptSpec, EXAMPLE_URL + "worker.js");
+                  ok(registration.waitingWorker === null);
+                  ok(registration.activeWorker === null);
+
+                  return waitForServiceWorkerRegistrationChange(registration, function () {
+                    ok(registration.installingWorker === null);
+                    ok(registration.waitingWorker !== null);
+                    ok(registration.activeWorker === null);
+
+                    return waitForServiceWorkerRegistrationChange(registration, function () {
+                      // Activating
+                      ok(registration.installingWorker === null);
+                      ok(registration.waitingWorker === null);
+                      ok(registration.activeWorker !== null);
+
+                      return waitForServiceWorkerRegistrationChange(registration, function () {
+                        // Activated
+                        ok(registration.installingWorker === null);
+                        ok(registration.waitingWorker === null);
+                        ok(registration.activeWorker !== null);
+
+                        return registration;
+                      });
+                    });
+                  });
+                });
+              });
+            });
+          });
+          iframe.contentWindow.postMessage("register", "*");
+          let registration = await promise;
+
+          promise = waitForServiceWorkerRegistrationChange(registration, function () {
+            // Got change event for updating (byte-check)
+            ok(registration.installingWorker === null);
+            ok(registration.waitingWorker === null);
+            ok(registration.activeWorker !== null);
+
+            return waitForServiceWorkerRegistrationChange(registration, function  () {
+              is(registration.scriptSpec, EXAMPLE_URL + "worker2.js");
+              ok(registration.evaluatingWorker !== null);
+
+              return waitForServiceWorkerRegistrationChange(registration, function () {
+                ok(registration.installingWorker !== null);
+                is(registration.installingWorker.scriptSpec, EXAMPLE_URL + "worker2.js");
+                ok(registration.waitingWorker === null);
+                ok(registration.activeWorker !== null);
+
+                return waitForServiceWorkerRegistrationChange(registration, function () {
+                  ok(registration.installingWorker === null);
+                  ok(registration.waitingWorker !== null);
+                  ok(registration.activeWorker !== null);
+
+                  return waitForServiceWorkerRegistrationChange(registration, function () {
+                    // Activating
+                    ok(registration.installingWorker === null);
+                    ok(registration.waitingWorker === null);
+                    ok(registration.activeWorker !== null);
+
+                    return waitForServiceWorkerRegistrationChange(registration, function () {
+                      // Activated
+                      ok(registration.installingWorker === null);
+                      ok(registration.waitingWorker === null);
+                      ok(registration.activeWorker !== null);
+
+                      return registration;
+                    });
+                  });
+                });
+              });
+            });
+          });
+          iframe.contentWindow.postMessage("register", "*");
+          await promise;
+
+          iframe.contentWindow.postMessage("unregister", "*");
+          await waitForUnregister(EXAMPLE_URL);
+
+          SimpleTest.finish();
+        })();
+      });
+    }
+
+  ]]>
+  </script>
+
+  <body xmlns="http://www.w3.org/1999/xhtml">
+    <p id="display"></p>
+    <div id="content" style="display:none;"></div>
+    <pre id="test"></pre>
+    <iframe id="iframe"></iframe>
+  </body>
+  <label id="test-result"/>
+</window>
diff --git a/dom/serviceworkers/test/test_skip_waiting.html b/dom/serviceworkers/test/test_skip_waiting.html
new file mode 100644
index 0000000000..6147ad6b38
--- /dev/null
+++ b/dom/serviceworkers/test/test_skip_waiting.html
@@ -0,0 +1,86 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1131352 - Add ServiceWorkerGlobalScope skipWaiting()</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+  var registration, iframe, content;
+
+  function start() {
+    return navigator.serviceWorker.register("worker.js",
+                                            {scope: "./skip_waiting_scope/"});
+  }
+
+  async function waitForActivated(swr) {
+    registration = swr;
+    await waitForState(registration.installing, "activated")
+
+    iframe = document.createElement("iframe");
+    iframe.setAttribute("src", "skip_waiting_scope/index.html");
+
+    content = document.getElementById("content");
+    content.appendChild(iframe);
+
+    await new Promise(resolve => iframe.onload = resolve);
+  }
+
+  function checkWhetherItSkippedWaiting() {
+    var promise = new Promise(function(resolve, reject) {
+      window.onmessage = function (evt) {
+        if (evt.data.event === "controllerchange") {
+          ok(evt.data.controllerScriptURL.match("skip_waiting_installed_worker"),
+             "The controller changed after skiping the waiting step");
+          resolve();
+        } else {
+          ok(false, "Wrong value. Somenting went wrong");
+          resolve();
+        }
+      };
+    });
+
+    navigator.serviceWorker.register("skip_waiting_installed_worker.js",
+                                     {scope: "./skip_waiting_scope/"})
+      .then(swr => {
+        registration = swr;
+    });
+
+    return promise;
+  }
+
+  function clean() {
+    content.removeChild(iframe);
+
+    return registration.unregister();
+  }
+
+  function runTest() {
+    start()
+      .then(waitForActivated)
+      .then(checkWhetherItSkippedWaiting)
+      .then(clean)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_streamfilter.html b/dom/serviceworkers/test/test_streamfilter.html
new file mode 100644
index 0000000000..7367fb8b84
--- /dev/null
+++ b/dom/serviceworkers/test/test_streamfilter.html
@@ -0,0 +1,207 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>
+    Test StreamFilter-monitored responses for ServiceWorker-intercepted requests
+  </title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="/tests/SimpleTest/ExtensionTestUtils.js"></script>
+  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<script>
+// eslint-disable-next-line mozilla/no-addtask-setup
+add_task(async function setup() {
+  SimpleTest.waitForExplicitFinish();
+
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ],
+  });
+
+  const registration = await navigator.serviceWorker.register(
+    "streamfilter_worker.js"
+  );
+
+  SimpleTest.registerCleanupFunction(async function unregisterRegistration() {
+    await registration.unregister();
+  });
+
+  await new Promise(resolve => {
+    const serviceWorker = registration.installing;
+
+    serviceWorker.onstatechange = () => {
+      if (serviceWorker.state == "activated") {
+        resolve();
+      }
+    };
+  });
+
+  ok(navigator.serviceWorker.controller, "Page is controlled");
+});
+
+async function getExtension() {
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest: {
+      permissions: ["webRequest", "webRequestBlocking", "<all_urls>"],
+    },
+
+    // This WebExtension only proxies a response's data through a StreamFilter;
+    // it doesn't modify the data itself in any way.
+    background() {
+      class FilterWrapper {
+        constructor(requestId) {
+          const filter = browser.webRequest.filterResponseData(requestId);
+          const arrayBuffers = [];
+
+          filter.onstart = () => {
+            browser.test.sendMessage("start");
+          };
+
+          filter.ondata = ({ data }) => {
+            arrayBuffers.push(data);
+          };
+
+          filter.onstop = () => {
+            browser.test.sendMessage("stop");
+            new Blob(arrayBuffers).arrayBuffer().then(buffer => {
+              filter.write(buffer);
+              filter.close();
+            });
+          };
+
+          filter.onerror = () => {
+            // We only ever expect a redirect error here.
+            browser.test.assertEq(filter.error, "ServiceWorker fallback redirection");
+            browser.test.sendMessage("error");
+          };
+        }
+      }
+
+      browser.webRequest.onBeforeRequest.addListener(
+        details => {
+          new FilterWrapper(details.requestId);
+        },
+        {
+          urls: ["<all_urls>"],
+          types: ["xmlhttprequest"],
+        },
+        ["blocking"]
+      );
+    },
+  });
+
+  await extension.startup();
+  return extension;
+}
+
+const streamFilterServerUrl = `${location.origin}/tests/dom/serviceworkers/test/streamfilter_server.sjs`;
+
+const requestUrlForServerQueryString = "syntheticResponse=0";
+
+// streamfilter_server.sjs is expected to respond to a request to this URL.
+const requestUrlForServer = `${streamFilterServerUrl}?${requestUrlForServerQueryString}`;
+
+const requestUrlForServiceWorkerQueryString = "syntheticResponse=1";
+
+// streamfilter_worker.js is expected to respond to a request to this URL.
+const requestUrlForServiceWorker = `${streamFilterServerUrl}?${requestUrlForServiceWorkerQueryString}`;
+
+// startNetworkerRequestFn must be a function that, when called, starts a
+// network request and returns a promise that resolves after the request
+// completes (or fails). This function will return the value that that promise
+// resolves with (or throw if it rejects).
+async function observeFilteredNetworkRequest(startNetworkRequestFn, promises) {
+  const networkRequestPromise = startNetworkRequestFn();
+  await Promise.all(promises);
+  return networkRequestPromise;
+}
+
+// Returns a promise that resolves with the XHR's response text.
+function callXHR(requestUrl, promises) {
+  return observeFilteredNetworkRequest(() => {
+    return new Promise((resolve, reject) => {
+      const xhr = new XMLHttpRequest();
+      xhr.onload = () => {
+        resolve(xhr.responseText);
+      };
+      xhr.onerror = reject;
+      xhr.open("GET", requestUrl);
+      xhr.send();
+    });
+  }, promises);
+}
+
+// Returns a promise that resolves with the Fetch's response text.
+function callFetch(requestUrl, promises) {
+  return observeFilteredNetworkRequest(() => {
+    return fetch(requestUrl).then(response => response.text());
+  }, promises);
+}
+
+// The expected response text is always the query string (without the leading
+// "?") of the request URL.
+add_task(async function callXhrExpectServerResponse() {
+  info(`Performing XHR at ${requestUrlForServer}...`);
+  let extension = await getExtension();
+  is(
+    await callXHR(requestUrlForServer, [
+      extension.awaitMessage("start"),
+      extension.awaitMessage("error"),
+      extension.awaitMessage("stop"),
+    ]),
+    requestUrlForServerQueryString,
+    "Server-supplied response for XHR completed successfully"
+  );
+  await extension.unload();
+});
+
+add_task(async function callXhrExpectServiceWorkerResponse() {
+  info(`Performing XHR at ${requestUrlForServiceWorker}...`);
+  let extension = await getExtension();
+  is(
+    await callXHR(requestUrlForServiceWorker, [
+      extension.awaitMessage("start"),
+      extension.awaitMessage("stop"),
+    ]),
+    requestUrlForServiceWorkerQueryString,
+    "ServiceWorker-supplied response for XHR completed successfully"
+  );
+  await extension.unload();
+});
+
+add_task(async function callFetchExpectServerResponse() {
+  info(`Performing Fetch at ${requestUrlForServer}...`);
+  let extension = await getExtension();
+  is(
+    await callFetch(requestUrlForServer, [
+      extension.awaitMessage("start"),
+      extension.awaitMessage("error"),
+      extension.awaitMessage("stop"),
+    ]),
+    requestUrlForServerQueryString,
+    "Server-supplied response for Fetch completed successfully"
+  );
+  await extension.unload();
+});
+
+add_task(async function callFetchExpectServiceWorkerResponse() {
+  info(`Performing Fetch at ${requestUrlForServiceWorker}...`);
+  let extension = await getExtension();
+  is(
+    await callFetch(requestUrlForServiceWorker, [
+      extension.awaitMessage("start"),
+      extension.awaitMessage("stop"),
+    ]),
+    requestUrlForServiceWorkerQueryString,
+    "ServiceWorker-supplied response for Fetch completed successfully"
+  );
+  await extension.unload();
+});
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_strict_mode_warning.html b/dom/serviceworkers/test/test_strict_mode_warning.html
new file mode 100644
index 0000000000..4df0d1a380
--- /dev/null
+++ b/dom/serviceworkers/test/test_strict_mode_warning.html
@@ -0,0 +1,42 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1170550 - test registration of service worker scripts with a strict mode warning</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+</div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  function runTest() {
+    navigator.serviceWorker
+      .register("strict_mode_warning.js", {scope: "strict_mode_warning"})
+      .then((reg) => {
+        ok(true, "Registration should not fail for warnings");
+        return reg.unregister();
+      })
+      .then(() => {
+        SimpleTest.finish();
+      });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  onload = function() {
+    SpecialPowers.pushPrefEnv({"set": [
+      ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ]}, runTest);
+  };
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_third_party_iframes.html b/dom/serviceworkers/test/test_third_party_iframes.html
new file mode 100644
index 0000000000..90e9dadfa8
--- /dev/null
+++ b/dom/serviceworkers/test/test_third_party_iframes.html
@@ -0,0 +1,263 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta http-equiv="Content-type" content="text/html;charset=UTF-8">
+  <title>Bug 1152899 - Disallow the interception of third-party iframes using service workers when the third-party cookie preference is set</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<script class="testbody" type="text/javascript">
+
+var chromeScript;
+chromeScript = SpecialPowers.loadChromeScript(_ => {
+  /* eslint-env mozilla/chrome-script */
+  Services.clearData.deleteData(Ci.nsIClearDataService.CLEAR_ALL, value => resolve());
+});
+
+SimpleTest.waitForExplicitFinish();
+SimpleTest.requestLongerTimeout(2);
+
+let index = 0;
+function next() {
+  info("Step " + index);
+  if (index >= steps.length) {
+    SimpleTest.finish();
+    return;
+  }
+  try {
+    let i = index++;
+    steps[i]();
+  } catch(ex) {
+    ok(false, "Caught exception", ex);
+  }
+}
+
+onload = next;
+
+let iframe;
+let proxyWindow;
+let basePath = "/tests/dom/serviceworkers/test/thirdparty/";
+let origin = window.location.protocol + "//" + window.location.host;
+let thirdPartyOrigin = "https://example.com";
+
+function loadIframe() {
+  let message = {
+    source: "parent",
+    href: origin + basePath + "iframe2.html"
+  };
+  iframe.contentWindow.postMessage(message, "*");
+}
+
+function loadThirdPartyIframe() {
+  let message = {
+    source: "parent",
+    href: thirdPartyOrigin + basePath + "iframe2.html"
+  }
+  iframe.contentWindow.postMessage(message, "*");
+}
+
+function runTest(aExpectedResponses) {
+  // Let's use a proxy window to have the new cookie policy applied.
+  proxyWindow = window.open("window_party_iframes.html");
+  proxyWindow.onload = _ => {
+    iframe = proxyWindow.document.querySelector("iframe");
+    iframe.src = thirdPartyOrigin + basePath + "register.html";
+    let responsesIndex = 0;
+    window.onmessage = function(e) {
+      let status = e.data.status;
+      let expected = aExpectedResponses[responsesIndex];
+      if (status == expected.status) {
+        ok(true, "Received expected " + expected.status);
+        if (expected.next) {
+          expected.next();
+        }
+      } else {
+        ok(false, "Expected " + expected.status + " got " + status);
+      }
+      responsesIndex++;
+    };
+  }
+}
+
+// Verify that we can register and intercept a 3rd party iframe with
+// the given cookie policy.
+function testShouldIntercept(behavior, done) {
+  SpecialPowers.pushPrefEnv({"set": [
+      ["network.cookie.cookieBehavior", behavior],
+  ]}, function() {
+    runTest([{
+      status: "ok"
+    }, {
+      status: "registrationdone",
+      next() {
+        iframe.src = origin + basePath + "iframe1.html";
+      }
+    }, {
+      status: "iframeloaded",
+      next: loadIframe
+    }, {
+      status: "networkresponse",
+    }, {
+      status: "worker-networkresponse",
+      next: loadThirdPartyIframe
+    }, {
+      status: "swresponse",
+    }, {
+      status: "worker-swresponse",
+      next() {
+        iframe.src = thirdPartyOrigin + basePath + "unregister.html";
+      }
+    }, {
+      status: "controlled",
+    }, {
+      status: "unregistrationdone",
+      next() {
+        window.onmessage = null;
+        proxyWindow.close();
+        ok(true, "Test finished successfully");
+        done();
+      }
+    }]);
+  });
+}
+
+// Verify that we cannot register a service worker in a 3rd party
+// iframe with the given cookie policy.
+function testShouldNotRegister(behavior, done) {
+  SpecialPowers.pushPrefEnv({"set": [
+      ["network.cookie.cookieBehavior", behavior],
+  ]}, function() {
+    runTest([{
+      status: "registrationfailed",
+      next() {
+        iframe.src = origin + basePath + "iframe1.html";
+      }
+    }, {
+      status: "iframeloaded",
+      next: loadIframe
+    }, {
+      status: "networkresponse",
+    }, {
+      status: "worker-networkresponse",
+      next: loadThirdPartyIframe
+    }, {
+      status: "networkresponse",
+    }, {
+      status: "worker-networkresponse",
+      next() {
+        window.onmessage = null;
+        proxyWindow.close();
+        ok(true, "Test finished successfully");
+        done();
+      }
+    }]);
+  });
+}
+
+// Verify that if a service worker is already registered a 3rd
+// party iframe will still not be intercepted with the given cookie
+// policy.
+function testShouldNotIntercept(behavior, done) {
+  SpecialPowers.pushPrefEnv({"set": [
+    ["network.cookie.cookieBehavior", BEHAVIOR_ACCEPT],
+  ]}, function() {
+    runTest([{
+      status: "ok"
+    }, {
+      status: "registrationdone",
+      next() {
+        SpecialPowers.pushPrefEnv({"set": [
+            ["network.cookie.cookieBehavior", behavior],
+          ]}, function() {
+            proxyWindow.close();
+            proxyWindow = window.open("window_party_iframes.html");
+            proxyWindow.onload = _ => {
+              iframe = proxyWindow.document.querySelector("iframe");
+              iframe.src = origin + basePath + "iframe1.html";
+            }
+          });
+      }
+    }, {
+      status: "iframeloaded",
+      next: loadIframe
+    }, {
+      status: "networkresponse",
+    }, {
+      status: "worker-networkresponse",
+      next: loadThirdPartyIframe
+    }, {
+      status: "networkresponse",
+    }, {
+      status: "worker-networkresponse",
+      next() {
+        iframe.src = thirdPartyOrigin + basePath + "unregister.html";
+      }
+    }, {
+      status: "uncontrolled",
+    }, {
+      status: "getregistrationfailed",
+      next() {
+        SpecialPowers.pushPrefEnv({"set": [
+            ["network.cookie.cookieBehavior", BEHAVIOR_ACCEPT],
+          ]}, function() {
+            proxyWindow.close();
+            proxyWindow = window.open("window_party_iframes.html");
+            proxyWindow.onload = _ => {
+              iframe = proxyWindow.document.querySelector("iframe");
+              iframe.src = thirdPartyOrigin + basePath + "unregister.html";
+            }
+          });
+      }
+    }, {
+      status: "controlled",
+    }, {
+      status: "unregistrationdone",
+      next() {
+        window.onmessage = null;
+        proxyWindow.close();
+        ok(true, "Test finished successfully");
+        done();
+      }
+    }]);
+  });
+}
+
+const BEHAVIOR_ACCEPT        = 0;
+const BEHAVIOR_REJECTFOREIGN = 1;
+const BEHAVIOR_REJECT        = 2;
+const BEHAVIOR_LIMITFOREIGN  = 3;
+
+let steps = [() => {
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+    ["browser.dom.window.dump.enabled", true],
+    ["network.cookie.cookieBehavior", BEHAVIOR_ACCEPT],
+  ]}, next);
+}, () => {
+  testShouldNotRegister(BEHAVIOR_REJECTFOREIGN, next);
+}, () => {
+  testShouldNotIntercept(BEHAVIOR_REJECTFOREIGN, next);
+}, () => {
+  testShouldNotRegister(BEHAVIOR_REJECT, next);
+}, () => {
+  testShouldNotIntercept(BEHAVIOR_REJECT, next);
+}, () => {
+  testShouldNotRegister(BEHAVIOR_LIMITFOREIGN, next);
+}, () => {
+  testShouldNotIntercept(BEHAVIOR_LIMITFOREIGN, next);
+}, () => {
+  testShouldIntercept(BEHAVIOR_ACCEPT, next);
+}];
+
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_unregister.html b/dom/serviceworkers/test/test_unregister.html
new file mode 100644
index 0000000000..959378f03a
--- /dev/null
+++ b/dom/serviceworkers/test/test_unregister.html
@@ -0,0 +1,137 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 984048 - Test unregister</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  function simpleRegister() {
+    return navigator.serviceWorker.register("worker.js", { scope: "unregister/" }).then(function(swr) {
+      if (swr.installing) {
+        return new Promise(function(resolve, reject) {
+          swr.installing.onstatechange = function(e) {
+            if (swr.waiting) {
+              swr.waiting.onstatechange = function(event) {
+                if (swr.active) {
+                  resolve();
+                } else if (swr.waiting && swr.waiting.state == "redundant") {
+                  reject("Should not go into redundant");
+                }
+              }
+            } else {
+              if (swr.active) {
+                resolve();
+              } else {
+                reject("No waiting and no active!");
+              }
+            }
+          }
+        });
+      } else {
+        return Promise.reject("Installing should be non-null");
+      }
+    });
+  }
+
+  function testControlled() {
+    var testPromise = new Promise(function(res, rej) {
+      window.onmessage = function(e) {
+        if (!("controlled" in e.data)) {
+          ok(false, "Something went wrong.");
+          rej();
+          return;
+        }
+
+        ok(e.data.controlled, "New window should be controlled.");
+        res();
+      }
+    })
+
+    var div = document.getElementById("content");
+    ok(div, "Parent exists");
+
+    var ifr = document.createElement("iframe");
+    ifr.setAttribute('src', "unregister/index.html");
+    div.appendChild(ifr);
+
+    return testPromise.then(function() {
+      div.removeChild(ifr);
+    });
+  }
+
+  function unregister() {
+    return navigator.serviceWorker.getRegistration("unregister/")
+           .then(function(reg) {
+             if (!reg) {
+               info("Registration already removed");
+               return;
+             }
+
+             info("getRegistration() succeeded " + reg.scope);
+             return reg.unregister().then(function(v) {
+               ok(v, "Unregister should resolve to true");
+             }, function(e) {
+               ok(false, "Unregister failed with " + e.name);
+             });
+           });
+  }
+
+  function testUncontrolled() {
+    var testPromise = new Promise(function(res, rej) {
+      window.onmessage = function(e) {
+        if (!("controlled" in e.data)) {
+          ok(false, "Something went wrong.");
+          rej();
+          return;
+        }
+
+        ok(!e.data.controlled, "New window should not be controlled.");
+        res();
+      }
+    });
+
+    var div = document.getElementById("content");
+    ok(div, "Parent exists");
+
+    var ifr = document.createElement("iframe");
+    ifr.setAttribute('src', "unregister/index.html");
+    div.appendChild(ifr);
+
+    return testPromise.then(function() {
+      div.removeChild(ifr);
+    });
+  }
+
+  function runTest() {
+    simpleRegister()
+      .then(testControlled)
+      .then(unregister)
+      .then(testUncontrolled)
+      .then(function() {
+        SimpleTest.finish();
+      }).catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+        SimpleTest.finish();
+      });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_unresolved_fetch_interception.html b/dom/serviceworkers/test/test_unresolved_fetch_interception.html
new file mode 100644
index 0000000000..7182b0fb86
--- /dev/null
+++ b/dom/serviceworkers/test/test_unresolved_fetch_interception.html
@@ -0,0 +1,95 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+  Test that an unresolved respondWith promise will reset the channel when
+  the service worker is terminated due to idling, and that appropriate error
+  messages are logged for both the termination of the serice worker and the
+  resetting of the channel.
+  -->
+<head>
+  <title>Test for Bug 1188545</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="error_reporting_helpers.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+  <meta http-equiv="Content-type" content="text/html;charset=UTF-8">
+</head>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1188545">Mozilla Bug 118845</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+</pre>
+
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+// (This doesn't really need to be its own task, but it allows the actual test
+// case to be self-contained.)
+add_task(function setupPrefs() {
+  return SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+  ]});
+});
+
+add_task(async function grace_timeout_termination_with_interrupted_intercept() {
+  // Setup timeouts so that the service worker will go into grace timeout after
+  // a zero-length idle timeout.
+  await SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.idle_timeout", 0],
+    ["dom.serviceWorkers.idle_extended_timeout", 299999]]});
+
+  let registration = await navigator.serviceWorker.register(
+    "unresolved_fetch_worker.js", { scope: "./"} );
+  await waitForState(registration.installing, "activated");
+  ok(navigator.serviceWorker.controller, "Controlled"); // double check!
+
+  // We want to make sure the SW is active and processing the fetch before we
+  // try and kill it.  It sends us a message when it has done so.
+  let waitForFetchActive = new Promise((resolve) => {
+    navigator.serviceWorker.onmessage = resolve;
+  });
+
+  // Issue a fetch which the SW will respondWith() a never resolved promise.
+  // The fetch, however, will terminate when the SW is killed, so check that.
+  let hangingFetch = fetch("does_not_exist.html")
+    .then(() => { ok(false, "should have rejected "); },
+          () => { ok(true, "hung fetch terminates when worker dies"); });
+
+  await waitForFetchActive;
+
+  let expectedMessage = expect_console_message(
+    // Termination error
+    "ServiceWorkerGraceTimeoutTermination",
+    [make_absolute_url("./")],
+    // The interception failure error generated by the RespondWithHandler
+    // destructor when it notices it didn't get a response before being
+    // destroyed.  It logs via the intercepted channel nsIConsoleReportCollector
+    // that is eventually flushed to our document and its console.
+    "InterceptionFailedWithURL",
+    [make_absolute_url("does_not_exist.html")]
+  );
+
+  // Zero out the grace timeout too so the worker will get terminated after two
+  // zero-length timer firings.  Note that we need to do something to get the
+  // SW to renew its keepalive for this to actually cause the timers to be
+  // rescheduled...
+  await SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.idle_extended_timeout", 0]]});
+  // ...which we do by postMessaging it.
+  navigator.serviceWorker.controller.postMessage("doomity doom doom");
+
+  // Now wait for signs that the worker was terminated by the fetch failing.
+  await hangingFetch;
+
+  // The worker should now be dead and the error logged, wait/assert.
+  await wait_for_expected_message(expectedMessage);
+
+  // roll back all of our test case specific preferences and otherwise cleanup
+  await SpecialPowers.popPrefEnv();
+  await SpecialPowers.popPrefEnv();
+  await registration.unregister();
+});
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_workerUnregister.html b/dom/serviceworkers/test/test_workerUnregister.html
new file mode 100644
index 0000000000..d0bc1d6ce4
--- /dev/null
+++ b/dom/serviceworkers/test/test_workerUnregister.html
@@ -0,0 +1,81 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 982728 - Test ServiceWorkerGlobalScope.unregister</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<div id="container"></div>
+<script class="testbody" type="text/javascript">
+
+  function simpleRegister() {
+    return navigator.serviceWorker.register("worker_unregister.js", { scope: "unregister/" }).then(function(swr) {
+      if (swr.installing) {
+        return new Promise(function(resolve, reject) {
+          swr.installing.onstatechange = function(e) {
+            if (swr.waiting) {
+              swr.waiting.onstatechange = function(event) {
+                if (swr.active) {
+                  resolve();
+                } else if (swr.waiting && swr.waiting.state == "redundant") {
+                  reject("Should not go into redundant");
+                }
+              }
+            } else {
+              if (swr.active) {
+                resolve();
+              } else {
+                reject("No waiting and no active!");
+              }
+            }
+          }
+        });
+      } else {
+        return Promise.reject("Installing should be non-null");
+      }
+    });
+  }
+
+  function waitForMessages(sw) {
+    var p = new Promise(function(resolve, reject) {
+      window.onmessage = function(e) {
+        if (e.data === "DONE") {
+          ok(true, "The worker has unregistered itself");
+        } else if (e.data === "ERROR") {
+          ok(false, "The worker has unregistered itself");
+        } else if (e.data === "FINISH") {
+          resolve();
+        }
+      }
+    });
+
+    var frame = document.createElement("iframe");
+    frame.setAttribute("src", "unregister/unregister.html");
+    document.body.appendChild(frame);
+
+    return p;
+  }
+
+  function runTest() {
+    simpleRegister().then(waitForMessages).catch(function(e) {
+      ok(false, "Something went wrong.");
+    }).then(function() {
+      SimpleTest.finish();
+    });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_workerUpdate.html b/dom/serviceworkers/test/test_workerUpdate.html
new file mode 100644
index 0000000000..015e6bb4ae
--- /dev/null
+++ b/dom/serviceworkers/test/test_workerUpdate.html
@@ -0,0 +1,63 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1065366 - Test ServiceWorkerGlobalScope.update</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<div id="container"></div>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+
+  function simpleRegister() {
+    return navigator.serviceWorker.register("worker_update.js", { scope: "workerUpdate/" })
+      .then(swr => waitForState(swr.installing, 'activated', swr));
+  }
+
+  var registration;
+  function waitForMessages(sw) {
+    registration = sw;
+    var p = new Promise(function(resolve, reject) {
+      window.onmessage = function(e) {
+        if (e.data === "FINISH") {
+          ok(true, "The worker has updated itself");
+          resolve();
+        } else if (e.data === "FAIL") {
+          ok(false, "The worker failed to update itself");
+          resolve();
+        }
+      }
+    });
+
+    var frame = document.createElement("iframe");
+    frame.setAttribute("src", "workerUpdate/update.html");
+    document.body.appendChild(frame);
+
+    return p;
+  }
+
+  function runTest() {
+    simpleRegister().then(waitForMessages).catch(function(e) {
+      ok(false, "Something went wrong.");
+    }).then(function() {
+      return registration.unregister();
+    }).then(function() {
+      SimpleTest.finish();
+    });
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true]
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_worker_reference_gc_timeout.html b/dom/serviceworkers/test/test_worker_reference_gc_timeout.html
new file mode 100644
index 0000000000..cf04e13f2e
--- /dev/null
+++ b/dom/serviceworkers/test/test_worker_reference_gc_timeout.html
@@ -0,0 +1,76 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+  -->
+<head>
+  <title>Test for Bug 1317266</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="error_reporting_helpers.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+  <meta http-equiv="Content-type" content="text/html;charset=UTF-8">
+</head>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1317266">Mozilla Bug 1317266</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+</pre>
+
+<script class="testbody" type="text/javascript">
+SimpleTest.requestFlakyTimeout("Forcing a race with the cycle collector.");
+
+add_task(function setupPrefs() {
+  return SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+  ]});
+});
+
+add_task(async function test_worker_ref_gc() {
+  let registration = await navigator.serviceWorker.register(
+    "lazy_worker.js", { scope: "./lazy_worker_scope_timeout"} )
+    .then(function(reg) {
+      SpecialPowers.exactGC();
+      var worker = reg.installing;
+      return new Promise(function(resolve) {
+        worker.addEventListener('statechange', function() {
+          info("state is " + worker.state + "\n");
+          SpecialPowers.exactGC();
+          if (worker.state === 'activated') {
+            resolve(reg);
+          }
+        });
+      });
+    });
+  ok(true, "Got activated event!");
+
+  await registration.unregister();
+});
+
+add_task(async function test_worker_ref_gc_ready_promise() {
+  let wait_active = navigator.serviceWorker.ready.then(function(reg) {
+    SpecialPowers.exactGC();
+    ok(reg.active, "Got active worker.");
+    ok(reg.active.state === "activating", "Worker is in activating state");
+    return new Promise(function(res) {
+      reg.active.onstatechange = function(e) {
+        reg.active.onstatechange = null;
+        ok(reg.active.state === "activated", "Worker was activated");
+        res();
+      }
+    });
+  });
+
+  let registration = await navigator.serviceWorker.register(
+    "lazy_worker.js", { scope: "."} );
+  await wait_active;
+  await registration.unregister();
+});
+
+add_task(async function cleanup() {
+  await SpecialPowers.popPrefEnv();
+});
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_workerupdatefoundevent.html b/dom/serviceworkers/test/test_workerupdatefoundevent.html
new file mode 100644
index 0000000000..1c3ced13bd
--- /dev/null
+++ b/dom/serviceworkers/test/test_workerupdatefoundevent.html
@@ -0,0 +1,91 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1131327 - Test ServiceWorkerRegistration.onupdatefound on ServiceWorker</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+  var registration;
+  var promise;
+
+  async function start() {
+    registration = await navigator.serviceWorker.register("worker_updatefoundevent.js",
+                                                          { scope: "./updatefoundevent.html" })
+    await waitForState(registration.installing, 'activated');
+
+    content = document.getElementById("content");
+    iframe = document.createElement("iframe");
+    content.appendChild(iframe);
+    iframe.setAttribute("src", "./updatefoundevent.html");
+
+    await new Promise(function(resolve) { iframe.onload = resolve; });
+    ok(iframe.contentWindow.navigator.serviceWorker.controller, "Controlled client.");
+
+    return Promise.resolve();
+
+  }
+
+  function startWaitForUpdateFound() {
+    registration.onupdatefound = function(e) {
+    }
+
+    promise = new Promise(function(resolve, reject) {
+      window.onmessage = function(e) {
+
+        if (e.data == "finish") {
+          ok(true, "Received updatefound");
+          resolve();
+        }
+      }
+    });
+
+    return Promise.resolve();
+  }
+
+  function registerNext() {
+    return navigator.serviceWorker.register("worker_updatefoundevent2.js",
+                                            { scope: "./updatefoundevent.html" });
+  }
+
+  function waitForUpdateFound() {
+    return promise;
+  }
+
+  function unregister() {
+    window.onmessage = null;
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    });
+  }
+
+  function runTest() {
+     start()
+      .then(startWaitForUpdateFound)
+      .then(registerNext)
+      .then(waitForUpdateFound)
+      .then(unregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/test_xslt.html b/dom/serviceworkers/test/test_xslt.html
new file mode 100644
index 0000000000..a955c843ac
--- /dev/null
+++ b/dom/serviceworkers/test/test_xslt.html
@@ -0,0 +1,117 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 1182113 - Test service worker XSLT interception</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content"></div>
+<pre id="test"></pre>
+<script src="utils.js"></script>
+<script class="testbody" type="text/javascript">
+  var registration;
+  var worker;
+
+  function start() {
+    return navigator.serviceWorker.register("xslt_worker.js",
+                                            { scope: "./" })
+      .then((swr) => {
+        registration = swr;
+
+        // Ensure the registration is active before continuing
+        return waitForState(swr.installing, 'activated');
+      });
+  }
+
+  function unregister() {
+    return registration.unregister().then(function(result) {
+      ok(result, "Unregister should return true.");
+    }, function(e) {
+      dump("Unregistering the SW failed with " + e + "\n");
+    });
+  }
+
+  function getXmlString(xmlObject) {
+    serializer = new XMLSerializer();
+    return serializer.serializeToString(iframe.contentDocument);
+  }
+
+  function synthetic() {
+    content = document.getElementById("content");
+    ok(content, "parent exists.");
+
+    iframe = document.createElement("iframe");
+    content.appendChild(iframe);
+
+    iframe.setAttribute('src', "xslt/test.xml");
+
+    var p = new Promise(function(res, rej) {
+      iframe.onload = function(e) {
+        dump("Set request mode\n");
+        registration.active.postMessage("synthetic");
+        xmlString = getXmlString(iframe.contentDocument);
+        ok(!xmlString.includes("Error"), "Load synthetic cross origin XSLT should be allowed");
+        res();
+      };
+    });
+
+    return p;
+  }
+
+  function cors() {
+    var p = new Promise(function(res, rej) {
+      iframe.onload = function(e) {
+        xmlString = getXmlString(iframe.contentDocument);
+        ok(!xmlString.includes("Error"), "Load CORS cross origin XSLT should be allowed");
+        res();
+      };
+    });
+
+    registration.active.postMessage("cors");
+    iframe.setAttribute('src', "xslt/test.xml");
+
+    return p;
+  }
+
+  function opaque() {
+    var p = new Promise(function(res, rej) {
+      iframe.onload = function(e) {
+        xmlString = getXmlString(iframe.contentDocument);
+        ok(xmlString.includes("Error"), "Load opaque cross origin XSLT should not be allowed");
+        res();
+      };
+    });
+
+    registration.active.postMessage("opaque");
+    iframe.setAttribute('src', "xslt/test.xml");
+
+    return p;
+  }
+
+  function runTest() {
+     start()
+      .then(synthetic)
+      .then(opaque)
+      .then(cors)
+      .then(unregister)
+      .catch(function(e) {
+        ok(false, "Some test failed with error " + e);
+      }).then(SimpleTest.finish);
+  }
+
+  SimpleTest.waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [
+    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+    ["dom.serviceWorkers.enabled", true],
+    ["dom.serviceWorkers.testing.enabled", true],
+  ]}, runTest);
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/thirdparty/iframe1.html b/dom/serviceworkers/test/thirdparty/iframe1.html
new file mode 100644
index 0000000000..e8982d306a
--- /dev/null
+++ b/dom/serviceworkers/test/thirdparty/iframe1.html
@@ -0,0 +1,42 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html>
+<head>
+  <meta http-equiv="Content-type" content="text/html;charset=UTF-8">
+  <title>SW third party iframe test</title>
+
+  <script type="text/javascript">
+    function messageListener(event) {
+      let message = event.data;
+
+      dump("got message " + JSON.stringify(message) + "\n");
+      if (message.source == "parent") {
+        document.getElementById("iframe2").src = message.href;
+      }
+      else if (message.source == "iframe") {
+        parent.postMessage(event.data, "*");
+      } else if (message.source == "worker") {
+        parent.postMessage(event.data, "*");
+      }
+    }
+  </script>
+
+</head>
+
+<body>
+  <script>
+    onload = function() {
+      window.addEventListener('message', messageListener);
+      let message = {
+        source: "iframe",
+        status: "iframeloaded",
+      }
+      parent.postMessage(message, "*");
+    }
+  </script>
+  <iframe id="iframe2"></iframe>
+</body>
+
+</html>
diff --git a/dom/serviceworkers/test/thirdparty/iframe2.html b/dom/serviceworkers/test/thirdparty/iframe2.html
new file mode 100644
index 0000000000..8013899195
--- /dev/null
+++ b/dom/serviceworkers/test/thirdparty/iframe2.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<script>
+  window.parent.postMessage({
+    source: "iframe",
+    status: "networkresponse"
+  }, "*");
+  var w = new Worker('worker.js');
+  w.onmessage = function(evt) {
+    window.parent.postMessage({
+      source: 'worker',
+      status: evt.data,
+    }, '*');
+  };
+</script>
diff --git a/dom/serviceworkers/test/thirdparty/register.html b/dom/serviceworkers/test/thirdparty/register.html
new file mode 100644
index 0000000000..b166acb8a4
--- /dev/null
+++ b/dom/serviceworkers/test/thirdparty/register.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<script>
+  function ok(v, msg) {
+    window.parent.postMessage({status: "ok", result: !!v, message: msg}, "*");
+  }
+
+  var isDone = false;
+  function done(reg) {
+    if (!isDone) {
+      ok(reg.waiting || reg.active,
+         "Either active or waiting worker should be available.");
+      window.parent.postMessage({status: "registrationdone"}, "*");
+      isDone = true;
+    }
+  }
+
+  navigator.serviceWorker.register("sw.js", {scope: "."})
+    .then(function(registration) {
+      if (registration.installing) {
+        registration.installing.onstatechange = function(e) {
+          done(registration);
+        };
+      } else {
+        done(registration);
+      }
+    }).catch(function(e) {
+      window.parent.postMessage({status: "registrationfailed"}, "*");
+    });
+</script>
diff --git a/dom/serviceworkers/test/thirdparty/sw.js b/dom/serviceworkers/test/thirdparty/sw.js
new file mode 100644
index 0000000000..0ecd801106
--- /dev/null
+++ b/dom/serviceworkers/test/thirdparty/sw.js
@@ -0,0 +1,33 @@
+self.addEventListener("fetch", function (event) {
+  dump("fetch " + event.request.url + "\n");
+  if (event.request.url.includes("iframe2.html")) {
+    var body =
+      "<script>" +
+      "window.parent.postMessage({" +
+      "source: 'iframe', status: 'swresponse'" +
+      "}, '*');" +
+      "var w = new Worker('worker.js');" +
+      "w.onmessage = function(evt) {" +
+      "window.parent.postMessage({" +
+      "source: 'worker'," +
+      "status: evt.data," +
+      "}, '*');" +
+      "};" +
+      "</script>";
+    event.respondWith(
+      new Response(body, {
+        headers: { "Content-Type": "text/html" },
+      })
+    );
+    return;
+  }
+  if (event.request.url.includes("worker.js")) {
+    var body = "self.postMessage('worker-swresponse');";
+    event.respondWith(
+      new Response(body, {
+        headers: { "Content-Type": "application/javascript" },
+      })
+    );
+    return;
+  }
+});
diff --git a/dom/serviceworkers/test/thirdparty/unregister.html b/dom/serviceworkers/test/thirdparty/unregister.html
new file mode 100644
index 0000000000..65b29d5648
--- /dev/null
+++ b/dom/serviceworkers/test/thirdparty/unregister.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<script>
+  if (navigator.serviceWorker.controller) {
+    window.parent.postMessage({status: "controlled"}, "*");
+  } else {
+    window.parent.postMessage({status: "uncontrolled"}, "*");
+  }
+
+  navigator.serviceWorker.getRegistration(".").then(function(registration) {
+    if(!registration) {
+      return;
+    }
+    registration.unregister().then(() => {
+      window.parent.postMessage({status: "unregistrationdone"}, "*");
+    });
+  }).catch(function(e) {
+    window.parent.postMessage({status: "getregistrationfailed"}, "*");
+  });
+</script>
diff --git a/dom/serviceworkers/test/thirdparty/worker.js b/dom/serviceworkers/test/thirdparty/worker.js
new file mode 100644
index 0000000000..bbdc608cde
--- /dev/null
+++ b/dom/serviceworkers/test/thirdparty/worker.js
@@ -0,0 +1 @@
+self.postMessage("worker-networkresponse");
diff --git a/dom/serviceworkers/test/unregister/index.html b/dom/serviceworkers/test/unregister/index.html
new file mode 100644
index 0000000000..36cac9fcf6
--- /dev/null
+++ b/dom/serviceworkers/test/unregister/index.html
@@ -0,0 +1,26 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 984048 - Test unregister</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+<script class="testbody" type="text/javascript">
+
+  if (!parent) {
+    info("unregister/index.html should not to be launched directly!");
+  }
+
+  parent.postMessage({ controlled: !!navigator.serviceWorker.controller }, "*");
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/unregister/unregister.html b/dom/serviceworkers/test/unregister/unregister.html
new file mode 100644
index 0000000000..42633ca343
--- /dev/null
+++ b/dom/serviceworkers/test/unregister/unregister.html
@@ -0,0 +1,21 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test worker::unregister</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<script type="text/javascript">
+
+  navigator.serviceWorker.onmessage = function(e) { parent.postMessage(e.data, "*"); }
+  navigator.serviceWorker.controller.postMessage("GO");
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/unresolved_fetch_worker.js b/dom/serviceworkers/test/unresolved_fetch_worker.js
new file mode 100644
index 0000000000..fae74f34b8
--- /dev/null
+++ b/dom/serviceworkers/test/unresolved_fetch_worker.js
@@ -0,0 +1,18 @@
+var keepPromiseAlive;
+onfetch = function (event) {
+  event.waitUntil(
+    clients.matchAll().then(clients => {
+      clients.forEach(client => {
+        client.postMessage("continue");
+      });
+    })
+  );
+
+  // Never resolve, and keep it alive on our global so it can't get GC'ed and
+  // make this test weird and intermittent.
+  event.respondWith((keepPromiseAlive = new Promise(function (res, rej) {})));
+};
+
+addEventListener("activate", function (event) {
+  event.waitUntil(clients.claim());
+});
diff --git a/dom/serviceworkers/test/update_worker.sjs b/dom/serviceworkers/test/update_worker.sjs
new file mode 100644
index 0000000000..44782a2732
--- /dev/null
+++ b/dom/serviceworkers/test/update_worker.sjs
@@ -0,0 +1,12 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+function handleRequest(request, response) {
+  // This header is necessary for making this script able to be loaded.
+  response.setHeader("Content-Type", "application/javascript");
+
+  var body = "/* " + Date.now() + " */";
+  response.write(body);
+}
diff --git a/dom/serviceworkers/test/updatefoundevent.html b/dom/serviceworkers/test/updatefoundevent.html
new file mode 100644
index 0000000000..78088c7cd0
--- /dev/null
+++ b/dom/serviceworkers/test/updatefoundevent.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>Bug 1131327 - Test ServiceWorkerRegistration.onupdatefound on ServiceWorker</title>
+</head>
+<body>
+<script>
+  navigator.serviceWorker.onmessage = function(e) {
+    dump("NSM iframe got message " + e.data + "\n");
+    window.parent.postMessage(e.data, "*");
+  };
+</script>
+</body>
diff --git a/dom/serviceworkers/test/utils.js b/dom/serviceworkers/test/utils.js
new file mode 100644
index 0000000000..28be239593
--- /dev/null
+++ b/dom/serviceworkers/test/utils.js
@@ -0,0 +1,136 @@
+function waitForState(worker, state, context) {
+  return new Promise(resolve => {
+    function onStateChange() {
+      if (worker.state === state) {
+        worker.removeEventListener("statechange", onStateChange);
+        resolve(context);
+      }
+    }
+
+    // First add an event listener, so we won't miss any change that happens
+    // before we check the current state.
+    worker.addEventListener("statechange", onStateChange);
+
+    // Now check if the worker is already in the desired state.
+    onStateChange();
+  });
+}
+
+/**
+ * Helper for browser tests to issue register calls from the content global and
+ * wait for the SW to progress to the active state, as most tests desire.
+ * From the ContentTask.spawn, use via
+ * `content.wrappedJSObject.registerAndWaitForActive`.
+ */
+async function registerAndWaitForActive(script, maybeScope) {
+  console.log("...calling register");
+  let opts = undefined;
+  if (maybeScope) {
+    opts = { scope: maybeScope };
+  }
+  const reg = await navigator.serviceWorker.register(script, opts);
+  // Unless registration resurrection happens, the SW should be in the
+  // installing slot.
+  console.log("...waiting for activation");
+  await waitForState(reg.installing, "activated", reg);
+  console.log("...activated!");
+  return reg;
+}
+
+/**
+ * Helper to create an iframe with the given URL and return the first
+ * postMessage payload received.  This is intended to be used when creating
+ * cross-origin iframes.
+ *
+ * A promise will be returned that resolves with the payload of the postMessage
+ * call.
+ */
+function createIframeAndWaitForMessage(url) {
+  const iframe = document.createElement("iframe");
+  document.body.appendChild(iframe);
+  return new Promise(resolve => {
+    window.addEventListener(
+      "message",
+      event => {
+        resolve(event.data);
+      },
+      { once: true }
+    );
+    iframe.src = url;
+  });
+}
+
+/**
+ * Helper to create a nested iframe into the iframe created by
+ * createIframeAndWaitForMessage().
+ *
+ * A promise will be returned that resolves with the payload of the postMessage
+ * call.
+ */
+function createNestedIframeAndWaitForMessage(url) {
+  const iframe = document.getElementsByTagName("iframe")[0];
+  iframe.contentWindow.postMessage("create nested iframe", "*");
+  return new Promise(resolve => {
+    window.addEventListener(
+      "message",
+      event => {
+        resolve(event.data);
+      },
+      { once: true }
+    );
+  });
+}
+
+async function unregisterAll() {
+  const registrations = await navigator.serviceWorker.getRegistrations();
+  for (const reg of registrations) {
+    await reg.unregister();
+  }
+}
+
+/**
+ * Make a blob that contains random data and therefore shouldn't compress all
+ * that well.
+ */
+function makeRandomBlob(size) {
+  const arr = new Uint8Array(size);
+  let offset = 0;
+  /**
+   * getRandomValues will only provide a maximum of 64k of data at a time and
+   * will error if we ask for more, so using a while loop for get a random value
+   * which much larger than 64k.
+   * https://developer.mozilla.org/en-US/docs/Web/API/Crypto/getRandomValues#exceptions
+   */
+  while (offset < size) {
+    const nextSize = Math.min(size - offset, 65536);
+    window.crypto.getRandomValues(new Uint8Array(arr.buffer, offset, nextSize));
+    offset += nextSize;
+  }
+  return new Blob([arr], { type: "application/octet-stream" });
+}
+
+async function fillStorage(cacheBytes, idbBytes) {
+  // ## Fill Cache API Storage
+  const cache = await caches.open("filler");
+  await cache.put("fill", new Response(makeRandomBlob(cacheBytes)));
+
+  // ## Fill IDB
+  const storeName = "filler";
+  let db = await new Promise((resolve, reject) => {
+    let openReq = indexedDB.open("filler", 1);
+    openReq.onerror = event => {
+      reject(event.target.error);
+    };
+    openReq.onsuccess = event => {
+      resolve(event.target.result);
+    };
+    openReq.onupgradeneeded = event => {
+      const useDB = event.target.result;
+      useDB.onerror = error => {
+        reject(error);
+      };
+      const store = useDB.createObjectStore(storeName);
+      store.put({ blob: makeRandomBlob(idbBytes) }, "filler-blob");
+    };
+  });
+}
diff --git a/dom/serviceworkers/test/window_party_iframes.html b/dom/serviceworkers/test/window_party_iframes.html
new file mode 100644
index 0000000000..abeea4449b
--- /dev/null
+++ b/dom/serviceworkers/test/window_party_iframes.html
@@ -0,0 +1,18 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta http-equiv="Content-type" content="text/html;charset=UTF-8">
+</head>
+<body>
+<iframe></iframe>
+<script>
+window.onmessage = e => {
+  opener.postMessage(e.data, "*");
+}
+</script>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/worker.js b/dom/serviceworkers/test/worker.js
new file mode 100644
index 0000000000..2aba167d18
--- /dev/null
+++ b/dom/serviceworkers/test/worker.js
@@ -0,0 +1 @@
+// empty worker, always succeed!
diff --git a/dom/serviceworkers/test/worker2.js b/dom/serviceworkers/test/worker2.js
new file mode 100644
index 0000000000..3072d0817f
--- /dev/null
+++ b/dom/serviceworkers/test/worker2.js
@@ -0,0 +1 @@
+// worker2.js
diff --git a/dom/serviceworkers/test/worker3.js b/dom/serviceworkers/test/worker3.js
new file mode 100644
index 0000000000..449fc2f976
--- /dev/null
+++ b/dom/serviceworkers/test/worker3.js
@@ -0,0 +1 @@
+// worker3.js
diff --git a/dom/serviceworkers/test/workerUpdate/update.html b/dom/serviceworkers/test/workerUpdate/update.html
new file mode 100644
index 0000000000..666e213d14
--- /dev/null
+++ b/dom/serviceworkers/test/workerUpdate/update.html
@@ -0,0 +1,23 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test worker::update</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<script type="text/javascript">
+
+  navigator.serviceWorker.onmessage = function(e) { parent.postMessage(e.data, "*"); }
+  navigator.serviceWorker.ready.then(function() {
+    navigator.serviceWorker.controller.postMessage("GO");
+  });
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/serviceworkers/test/worker_unregister.js b/dom/serviceworkers/test/worker_unregister.js
new file mode 100644
index 0000000000..6aa7c3d501
--- /dev/null
+++ b/dom/serviceworkers/test/worker_unregister.js
@@ -0,0 +1,22 @@
+onmessage = function (e) {
+  clients.matchAll().then(function (c) {
+    if (c.length === 0) {
+      // We cannot proceed.
+      return;
+    }
+
+    registration
+      .unregister()
+      .then(
+        function () {
+          c[0].postMessage("DONE");
+        },
+        function () {
+          c[0].postMessage("ERROR");
+        }
+      )
+      .then(function () {
+        c[0].postMessage("FINISH");
+      });
+  });
+};
diff --git a/dom/serviceworkers/test/worker_update.js b/dom/serviceworkers/test/worker_update.js
new file mode 100644
index 0000000000..8935cedc52
--- /dev/null
+++ b/dom/serviceworkers/test/worker_update.js
@@ -0,0 +1,25 @@
+// For now this test only calls update to verify that our registration
+// job queueing works properly when called from the worker thread. We should
+// test actual update scenarios with a SJS test.
+onmessage = function (e) {
+  self.registration
+    .update()
+    .then(function (v) {
+      return v instanceof ServiceWorkerRegistration ? "FINISH" : "FAIL";
+    })
+    .catch(function (ex) {
+      return "FAIL";
+    })
+    .then(function (result) {
+      clients.matchAll().then(function (c) {
+        if (!c.length) {
+          dump(
+            "!!!!!!!!!!! WORKER HAS NO CLIENTS TO FINISH TEST !!!!!!!!!!!!\n"
+          );
+          return;
+        }
+
+        c[0].postMessage(result);
+      });
+    });
+};
diff --git a/dom/serviceworkers/test/worker_updatefoundevent.js b/dom/serviceworkers/test/worker_updatefoundevent.js
new file mode 100644
index 0000000000..96a1815ee5
--- /dev/null
+++ b/dom/serviceworkers/test/worker_updatefoundevent.js
@@ -0,0 +1,20 @@
+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+registration.onupdatefound = function (e) {
+  clients.matchAll().then(function (clients) {
+    if (!clients.length) {
+      // We don't control any clients when the first update event is fired
+      // because we haven't reached the 'activated' state.
+      return;
+    }
+
+    if (registration.scope.match(/updatefoundevent\.html$/)) {
+      clients[0].postMessage("finish");
+    } else {
+      dump("Scope did not match");
+    }
+  });
+};
diff --git a/dom/serviceworkers/test/worker_updatefoundevent2.js b/dom/serviceworkers/test/worker_updatefoundevent2.js
new file mode 100644
index 0000000000..da4c592aad
--- /dev/null
+++ b/dom/serviceworkers/test/worker_updatefoundevent2.js
@@ -0,0 +1 @@
+// Not useful.
diff --git a/dom/serviceworkers/test/xslt/test.xml b/dom/serviceworkers/test/xslt/test.xml
new file mode 100644
index 0000000000..83c7776339
--- /dev/null
+++ b/dom/serviceworkers/test/xslt/test.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0"?>
+<?xml-stylesheet type="text/xsl" href="test.xsl"?>
+<result>
+  <Title>Example</Title>
+  <Error>Error</Error>
+</result>
diff --git a/dom/serviceworkers/test/xslt/xslt.sjs b/dom/serviceworkers/test/xslt/xslt.sjs
new file mode 100644
index 0000000000..db681ab500
--- /dev/null
+++ b/dom/serviceworkers/test/xslt/xslt.sjs
@@ -0,0 +1,12 @@
+function handleRequest(request, response) {
+  response.setHeader("Content-Type", "application/xslt+xml", false);
+  response.setHeader("Access-Control-Allow-Origin", "*");
+
+  var body = request.queryString;
+  if (!body) {
+    response.setStatusLine(null, 500, "Invalid querystring");
+    return;
+  }
+
+  response.write(unescape(body));
+}
diff --git a/dom/serviceworkers/test/xslt_worker.js b/dom/serviceworkers/test/xslt_worker.js
new file mode 100644
index 0000000000..d7e6eea129
--- /dev/null
+++ b/dom/serviceworkers/test/xslt_worker.js
@@ -0,0 +1,58 @@
+var testType = "synthetic";
+
+var xslt =
+  '<?xml version="1.0"?> ' +
+  '<xsl:stylesheet version="1.0"' +
+  '   xmlns:xsl="http://www.w3.org/1999/XSL/Transform">' +
+  '  <xsl:template match="node()|@*">' +
+  "    <xsl:copy>" +
+  '      <xsl:apply-templates select="node()|@*"/>' +
+  "    </xsl:copy>" +
+  "  </xsl:template>" +
+  '  <xsl:template match="Error"/>' +
+  "</xsl:stylesheet>";
+
+onfetch = function (event) {
+  if (event.request.url.includes("test.xsl")) {
+    if (testType == "synthetic") {
+      if (event.request.mode != "cors") {
+        event.respondWith(Response.error());
+        return;
+      }
+
+      event.respondWith(
+        Promise.resolve(
+          new Response(xslt, {
+            headers: { "Content-Type": "application/xslt+xml" },
+          })
+        )
+      );
+    } else if (testType == "cors") {
+      if (event.request.mode != "cors") {
+        event.respondWith(Response.error());
+        return;
+      }
+
+      var url =
+        "http://example.com/tests/dom/serviceworkers/test/xslt/xslt.sjs?" +
+        escape(xslt);
+      event.respondWith(fetch(url, { mode: "cors" }));
+    } else if (testType == "opaque") {
+      if (event.request.mode != "cors") {
+        event.respondWith(Response.error());
+        return;
+      }
+
+      var url =
+        "http://example.com/tests/dom/serviceworkers/test/xslt/xslt.sjs?" +
+        escape(xslt);
+      event.respondWith(fetch(url, { mode: "no-cors" }));
+    } else {
+      event.respondWith(Response.error());
+    }
+  }
+};
+
+onmessage = function (event) {
+  testType = event.data;
+};
-- 
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