third_party/WebKit/LayoutTests/http/tests/security/mixedContent/resources/frame-with-insecure-iframe.html - chromium/src - Git at Google

 <body onload="loaded()">
 <script>
 function loaded()
 {
   if (window.opener)
     window.opener.postMessage('done', '*');
 }
 </script>
 <iframe src="http://example.test:8080/security/mixedContent/resources/boring.html"></iframe>
 </body>
	<body onload="loaded()">
	<script>
	function loaded()
	{
	if (window.opener)
	window.opener.postMessage('done', '*');
	}
	</script>
	<iframe src="http://example.test:8080/security/mixedContent/resources/boring.html"></iframe>
	</body>