LayoutTests/http/tests/security/resources/navigate-top-level-frame-to-failure-page-via-message-handler.html - WebKit - Git at Google

 <html>
 <body>
 <script>
 onmessage = (e) => {
     top.location = "http://127.0.0.1:8000/security/resources/should-not-have-loaded.html";
 }
 </script>
 </body>
 </html>
	<html>
	<body>
	<script>
	onmessage = (e) => {
	top.location = "http://127.0.0.1:8000/security/resources/should-not-have-loaded.html";
	}
	</script>
	</body>
	</html>