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<!doctype html>
<meta charset=utf-8>
<title>Use Clear-Site-Data to immediately unregister service workers</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/test-helpers.sub.js"></script>
<script src="resources/unregister-immediately-helpers.js"></script>
<body>
<script>
'use strict';
// These tests use the Clear-Site-Data network response header to immediately
// unregister a service worker registration with a worker that has pending
// extendable events. Clear-Site-Data must delete the registration,
// abort all pending extendable events and then clear the registration by
// setting the worker's state to 'redundant'
promise_test(async test => {
// Use a service worker script that can produce fetch events with pending
// respondWith() promises that never resolve.
const script_url = 'resources/onfetch-waituntil-forever.js';
const scope_url =
'resources/blank.html?unregister-immediately-with-fetch-event';
const registration = await service_worker_unregister_and_register(
test, script_url, scope_url);
await wait_for_state(test, registration.installing, 'activated');
const frame = await add_controlled_iframe(test, scope_url);
// Clear-Site-Data must cause the pending fetch promise to reject.
const fetch_promise = promise_rejects_js(
test, TypeError, frame.contentWindow.fetch('waituntil-forever'));
const event_watcher = new EventWatcher(
test, frame.contentWindow.navigator.serviceWorker, 'controllerchange');
await Promise.all([
clear_site_data(),
fetch_promise,
event_watcher.wait_for('controllerchange'),
wait_for_state(test, registration.active, 'redundant'),]);
assert_equals(frame.contentWindow.navigator.serviceWorker.controller, null);
await assert_no_registrations_exist();
}, 'Clear-Site-Data must fail pending subresource fetch events.');
</script>
</body>
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