element-only-when-fully-active.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /element-timing/element-only-when-fully-active.html - WPT Dashboard Interop Dashboard

<!DOCTYPE HTML>

<meta charset=utf-8>

<title>ElementTiming: element is only exposed for fully active documents.</title>

<body>

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

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

<iframe src="resources/iframe-stores-entry.html" id="ifr"></iframe>

<script>

  let t = async_test('Only expose element attribute for fully active documents');

  t.step(() => {

    assert_implements(window.PerformanceElementTiming, "PerformanceElementTiming is not implemented");

});

  window.triggerTest = t.step_func_done(elementEntry => {

    assert_not_equals(elementEntry.element, null);

    const iframe = document.getElementById('ifr');

    iframe.remove();

    assert_equals(elementEntry.element, null);

});

</script>

</body>