Content - d463810964b83dac638a39846052dc41b2824929 - 57755a9/longtask-timing/longtask-in-sibling-iframe.html

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Tip revision: 98cc5c8bb77ef18be9c4464c8e66873654ade128 authored by Chris Lilley on 11 April 2018, 09:30:00 UTC
quick test to see if descriptor supported anywhere

Tip revision: 98cc5c8

longtask-in-sibling-iframe.html

<!DOCTYPE HTML>
<meta charset=utf-8>
<title>LongTask Timing: long task in sibling iframe</title>
<body>

<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<script>
  async_test(t => {
    window.addEventListener('message', t.step_func(e => {
      assert_equals(e.data['entryType'], 'longtask');
      assert_equals(e.data['frame-attribution'], 'same-origin');
      assert_equals(e.data['task-attribution'], 'script');
      assert_equals(e.data['containerId'], 'longtask-iframe-id');
      assert_equals(e.data['containerName'], 'longtask-iframe-name');
      assert_equals(e.data['containerSrc'], 'resources/subframe-with-longtask.html');
      t.done();
    }));
    const observingFrame = document.createElement('iframe');
    observingFrame.id = 'observing-iframe-id';
    observingFrame.name = 'observing-iframe-name';
    document.body.appendChild(observingFrame);
    observingFrame.src = 'resources/subframe-observing-longtask.html'

    const longtaskFrame = document.createElement('iframe');
    longtaskFrame.id = 'longtask-iframe-id';
    longtaskFrame.name = 'longtask-iframe-name';
    document.body.appendChild(longtaskFrame);
    longtaskFrame.src = 'resources/subframe-with-longtask.html'
}, 'Performance longtask entries are observable in sibling iframe.');
</script>
</body>

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