chromium/src/third_party/blink/web_tests/http/tests/security/resources/onerror-iframe.html - manifest_repos/chromium_src - Git at Google

 <script>
 function handleLoad()
 {
     window.parent.postMessage("IFrameLoaded", "*");
 }

 throw "IframeException";

 </script>
 <body onload="handleLoad()">
 </body>
	<script>
	function handleLoad()
	{
	window.parent.postMessage("IFrameLoaded", "*");
	}

	throw "IframeException";

	</script>
	<body onload="handleLoad()">
	</body>