41 lines
1.7 KiB
HTML
41 lines
1.7 KiB
HTML
<!DOCTYPE HTML>
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<meta charset=utf-8>
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<title>LongTask Timing: long task in 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>
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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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// Ignore any long task that may be produced by the top-level frame.
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if (e.data['frame-attribution'] === 'same-origin-ancestor')
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return;
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assert_equals(e.data['frame-attribution'], 'same-origin');
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assert_equals(e.data['task-attribution'], 'unknown');
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assert_equals(e.data['containerType'], 'iframe');
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assert_equals(e.data['containerId'], 'longtask-iframe-id');
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assert_equals(e.data['containerName'], 'longtask-iframe-name');
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assert_equals(e.data['containerSrc'], 'resources/subframe-with-longtask.html');
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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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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 = 'resources/subframe-with-longtask.html'
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};
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}, 'Performance longtask entries are observable in sibling iframe.');
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</script>
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</body>
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