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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
| commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
| tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /testing/web-platform/tests/fetch/stale-while-revalidate/stale-image.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip | |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/fetch/stale-while-revalidate/stale-image.html')
| -rw-r--r-- | testing/web-platform/tests/fetch/stale-while-revalidate/stale-image.html | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/testing/web-platform/tests/fetch/stale-while-revalidate/stale-image.html b/testing/web-platform/tests/fetch/stale-while-revalidate/stale-image.html new file mode 100644 index 0000000000..d86bdfbde2 --- /dev/null +++ b/testing/web-platform/tests/fetch/stale-while-revalidate/stale-image.html @@ -0,0 +1,55 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>Tests Stale While Revalidate works for images</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="/common/utils.js"></script> +<body> +<!-- +Use a child document to load the second stale image into because +an image loaded into the same document will skip cache-control headers. +See: https://html.spec.whatwg.org/#the-list-of-available-images +--> +<iframe id="child1" srcdoc=""></iframe> +<iframe id="child2" srcdoc=""></iframe> +<script> + +var request_token = token(); +let image_src = "resources/stale-image.py?token=" + request_token; + +let loadImage = async (document) => { + let img = document.createElement("img"); + img.src = image_src; + let loaded = new Promise(r => img.onload = r); + document.body.appendChild(img); + await loaded; + return img; +}; + +promise_test(async t => { + await new Promise(r => window.onload = r); + + let img1 = await loadImage(document); + assert_equals(img1.width, 16, "(initial version loaded)"); + + let img2 = await loadImage(child1.contentDocument); + assert_equals(img2.width, 16, "(stale version loaded)"); + + // Query the server again and again. At some point it must have received the + // revalidation request. We poll, because we don't know when the revalidation + // will occur. + while(true) { + await new Promise(r => step_timeout(r, 25)); + let response = await fetch(image_src + "&query"); + let count = response.headers.get("Count"); + if (count == '2') + break; + } + + let img3 = await loadImage(child2.contentDocument); + assert_equals(img3.width, 256, "(revalidated version loaded)"); + +}, 'Cache returns stale resource'); + +</script> +</body> |