chromium/src/third_party/blink/web_tests/http/tests/security/contentSecurityPolicy/resources/referrer-test-endpoint.php - manifest_repos/chromium_src - Git at Google

 <html>
 <head>
 <script>
     var referrerHeader = "<?php echo $_SERVER['HTTP_REFERER'] ?>";
     window.top.postMessage(referrerHeader, "*");
 </script>
 </head>
 </html>
	<html>
	<head>
	<script>
	var referrerHeader = "<?php echo $_SERVER['HTTP_REFERER'] ?>";
	window.top.postMessage(referrerHeader, "*");
	</script>
	</head>
	</html>