LayoutTests/js/resources/shadow-realm-iframe.html - WebKit - Git at Google

 <!doctype html>
 <html>
     <head></head>
     <body>
         <script>
          window.realm = new ShadowRealm();
          window.parent.postMessage('hi', "*");
         </script>
     </body>
 </html>
	<!doctype html>
	<html>
	<head></head>
	<body>
	<script>
	window.realm = new ShadowRealm();
	window.parent.postMessage('hi', "*");
	</script>
	</body>
	</html>