зеркало из https://github.com/mozilla/gecko-dev.git
60 строки
2.5 KiB
HTML
60 строки
2.5 KiB
HTML
<!DOCTYPE HTML>
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<meta charset=utf-8>
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<title>LongTask Timing: long task in nested child 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 src='resources/utils.js'></script>
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<h1>Long Task in Nested Cross-Origin Child Iframe</h1>
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<div id="log"></div>
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<script>
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const child_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(function (t) {
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assert_implements(window.PerformanceLongTaskTiming, 'Longtasks are not supported.');
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const observer = new PerformanceObserver(
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t.step_func(function (entryList) {
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const entries = entryList.getEntries();
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assert_equals(entries.length, 1,
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'Exactly one entry is expected.');
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const longtask = entries[0];
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assert_equals(longtask.entryType, 'longtask');
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if (longtask.name == 'self' ||
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longtask.name == 'multiple-contexts' ||
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longtask.name == 'unknown')
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return;
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checkLongTaskEntry(longtask, 'cross-origin-descendant');
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// Assert the TaskAttributionTiming entry in attribution.
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assert_equals(longtask.attribution.length, 1,
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'Exactly one attribution entry is expected');
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const attribution = longtask.attribution[0];
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assert_equals(attribution.entryType, 'taskattribution');
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assert_equals(attribution.name, 'unknown');
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assert_equals(attribution.duration, 0);
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assert_equals(attribution.startTime, 0);
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assert_equals(attribution.containerType, 'iframe');
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assert_equals(attribution.containerId, 'child-iframe-id');
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assert_equals(attribution.containerName, 'child-iframe-name');
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assert_equals(attribution.containerSrc, child_url);
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observer.disconnect();
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t.done();
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})
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);
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observer.observe({entryTypes: ['longtask']});
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window.onload = () => {
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const iframe = document.createElement('iframe');
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iframe.id = 'child-iframe-id';
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iframe.name = 'child-iframe-name';
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document.body.appendChild(iframe);
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iframe.src = child_url;
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};
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}, 'Performance longtask entries in cross-origin child iframe are observable in parent.');
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</script>
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</body>
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