timeline.html - mozsearch

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This WPT test may be referenced by the following Test IDs:
- /web-animations/interfaces/Document/timeline.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset=utf-8>

<title>Document.timeline</title>

<link rel="help" href="https://drafts.csswg.org/web-animations/#dom-document-timeline">

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

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

<script src="../../testcommon.js"></script>

<div id="log"></div>

<iframe width="10" height="10" id="iframe"></iframe>

<script>

'use strict';

test(() => {

  assert_equals(document.timeline, document.timeline,

    'Document.timeline returns the same object every time');

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

  assert_not_equals(document.timeline, iframe.contentDocument.timeline,

    'Document.timeline returns a different object for each document');

  assert_not_equals(iframe.contentDocument.timeline, null,

    'Document.timeline on an iframe is not null');

}, 'Document.timeline returns the default document timeline');

</script>