third_party/web_platform_tests/service-workers/service-worker/navigation-preload/resources/samesite-iframe.html - cobalt - Git at Google

 <!DOCTYPE html>
 <meta charset="utf-8">
 <body>samesite</body>
 <script>
 onmessage = (e) => {
   if (e.data === "GetBody") {
     parent.postMessage("samesite", '*');
   }
 }
 </script>
	<!DOCTYPE html>
	<meta charset="utf-8">
	<body>samesite</body>
	<script>
	onmessage = (e) => {
	if (e.data === "GetBody") {
	parent.postMessage("samesite", '*');
	}
	}
	</script>