timeline.html (913B)
1 <!doctype html> 2 <meta charset=utf-8> 3 <title>Document.timeline</title> 4 <link rel="help" href="https://drafts.csswg.org/web-animations/#dom-document-timeline"> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 <script src="../../testcommon.js"></script> 8 <div id="log"></div> 9 <iframe width="10" height="10" id="iframe"></iframe> 10 <script> 11 'use strict'; 12 13 test(() => { 14 assert_equals(document.timeline, document.timeline, 15 'Document.timeline returns the same object every time'); 16 const iframe = document.getElementById('iframe'); 17 assert_not_equals(document.timeline, iframe.contentDocument.timeline, 18 'Document.timeline returns a different object for each document'); 19 assert_not_equals(iframe.contentDocument.timeline, null, 20 'Document.timeline on an iframe is not null'); 21 }, 'Document.timeline returns the default document timeline'); 22 23 </script>