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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/tests/largest-contentful-paint/iframe-content-not-observed.html
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/largest-contentful-paint/iframe-content-not-observed.html')
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diff --git a/testing/web-platform/tests/largest-contentful-paint/iframe-content-not-observed.html b/testing/web-platform/tests/largest-contentful-paint/iframe-content-not-observed.html
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+++ b/testing/web-platform/tests/largest-contentful-paint/iframe-content-not-observed.html
@@ -0,0 +1,25 @@
+<!DOCTYPE HTML>
+<meta charset=utf-8>
+<head>
+<title>Largest Contentful Paint: do NOT observe elements from same-origin iframes</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<script>
+ async_test((t) => {
+ assert_implements(window.LargestContentfulPaint, "LargestContentfulPaint is not implemented");
+ const observer = new PerformanceObserver(
+ t.step_func_done(entryList => {
+ assert_unreached("Should not have received an entry!");
+ })
+ );
+ observer.observe({type: 'largest-contentful-paint', buffered: true});
+ // After a delay, assume that no entry was produced.
+ t.step_timeout(() => {
+ t.done();
+ }, 200);
+ }, 'Element in child iframe is not observed, even if same-origin.');
+</script>
+<iframe src='resources/iframe-with-content.html'></iframe>
+</body>