element-only-when-fully-active.html (769B)
1 <!DOCTYPE HTML> 2 <meta charset=utf-8> 3 <title>ElementTiming: element is only exposed for fully active documents.</title> 4 <body> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 <iframe src="resources/iframe-stores-entry.html" id="ifr"></iframe> 8 <script> 9 let t = async_test('Only expose element attribute for fully active documents'); 10 t.step(() => { 11 assert_implements(window.PerformanceElementTiming, "PerformanceElementTiming is not implemented"); 12 }); 13 window.triggerTest = t.step_func_done(elementEntry => { 14 assert_not_equals(elementEntry.element, null); 15 const iframe = document.getElementById('ifr'); 16 iframe.remove(); 17 assert_equals(elementEntry.element, null); 18 }); 19 </script> 20 </body>