LayoutTests/http/tests/security/resources/cross-frame-iframe-with-explicit-domain-set.html - WebKit - Git at Google

 <html>
 <head>
     <script>
         document.domain = "127.0.0.1";
         parent.postMessage("LOADED", "*");
     </script>
 </head>
 <body>
     <p id='accessMe'></p>
     <p>Inner iframe with explicit document.domain set.</p>
 </body>
 </html>
	<html>
	<head>
	<script>
	document.domain = "127.0.0.1";
	parent.postMessage("LOADED", "*");
	</script>
	</head>
	<body>
	<p id='accessMe'></p>
	<p>Inner iframe with explicit document.domain set.</p>
	</body>
	</html>