зеркало из https://github.com/mozilla/gecko-dev.git
44 строки
1.8 KiB
HTML
44 строки
1.8 KiB
HTML
<!DOCTYPE HTML>
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<meta charset=utf-8>
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<title>LongTask Timing: long task in cross-origin sibling iframe</title>
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<body>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/common/get-host-info.sub.js"></script>
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<script>
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const sibling_url = new URL("resources/subframe-with-longtask.html",
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new URL(location.pathname,
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get_host_info().HTTPS_REMOTE_ORIGIN)).href;
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async_test(t => {
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assert_implements(window.PerformanceLongTaskTiming, 'Longtasks are not supported.');
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window.addEventListener('message', t.step_func(e => {
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assert_equals(e.data['entryType'], 'longtask');
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assert_equals(e.data['frame-attribution'], 'cross-origin-unreachable');
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assert_equals(e.data['task-attribution'], 'unknown');
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assert_equals(e.data['containerType'], 'window');
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assert_equals(e.data['containerId'], '');
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assert_equals(e.data['containerName'], '');
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assert_equals(e.data['containerSrc'], '');
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t.done();
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}));
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const observingFrame = document.createElement('iframe');
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observingFrame.id = 'observing-iframe-id';
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observingFrame.name = 'observing-iframe-name';
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document.body.appendChild(observingFrame);
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observingFrame.src = 'resources/subframe-observing-longtask.html'
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observingFrame.onload = () => {
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/* Create a cross-origin iframe that generates a long task. */
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const longtaskFrame = document.createElement('iframe');
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longtaskFrame.id = 'longtask-iframe-id';
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longtaskFrame.name = 'longtask-iframe-name';
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document.body.appendChild(longtaskFrame);
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longtaskFrame.src = sibling_url;
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};
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}, 'Performance longtask entries from cross-origin iframe are observable in its sibling.');
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</script>
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</body>
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