LayoutTests/fast/parser/adoption-agency-unload-iframe-2.html - WebKit - Git at Google

 <!DOCTYPE html>
 <head>
 <script src="../../resources/testharness.js"></script>
 <script src="../../resources/testharnessreport.js"></script>
 </head>
 <body>
 <b><p><script>

 let oldBody = document.body;
 oldBody.remove();

 let b = oldBody.querySelector('b');
 document.documentElement.appendChild(b);
 /* html
      + b
        + p
          + script */

 let iframe = document.createElement('iframe');
 b.firstChild.appendChild(iframe);
 /* html
      + b
        + p
          + script
          + iframe */

 let oldGlobal = iframe.contentWindow;

 window.onload = () => {
     document.documentElement.appendChild(document.createElement('body'));
     let test = async_test('An iframe removed by the adoption agency algorithm must be unloaded');
     test.step(() => {
         assert_not_equals(oldGlobal, iframe.contentWindow);
     });
     test.done();
 }

 </script></b>
	<!DOCTYPE html>
	<head>
	<script src="../../resources/testharness.js"></script>
	<script src="../../resources/testharnessreport.js"></script>
	</head>
	<body>
	<b><p><script>

	let oldBody = document.body;
	oldBody.remove();

	let b = oldBody.querySelector('b');
	document.documentElement.appendChild(b);
	/* html
	+ b
	+ p
	+ script */

	let iframe = document.createElement('iframe');
	b.firstChild.appendChild(iframe);
	/* html
	+ b
	+ p
	+ script
	+ iframe */

	let oldGlobal = iframe.contentWindow;

	window.onload = () => {
	document.documentElement.appendChild(document.createElement('body'));
	let test = async_test('An iframe removed by the adoption agency algorithm must be unloaded');
	test.step(() => {
	assert_not_equals(oldGlobal, iframe.contentWindow);
	});
	test.done();
	}

	</script></b>