chrome/test/data/popup_blocker/check-openersuppressed.html - chromium/src - Git at Google

 <!DOCTYPE html>
 <html>
 <head>
 <title>Check that window.opener is not set</title>
 </head>
 <body>
 <div id="console"></div>
 <script>
   var log = document.querySelector("#console");
   var result;
   if (window.opener != null)
     result = "FAIL: opener set";
   else
     result = "PASS";
   log.innerText = result;
   document.title = result;
 </script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<title>Check that window.opener is not set</title>
	</head>
	<body>
	<div id="console"></div>
	<script>
	var log = document.querySelector("#console");
	var result;
	if (window.opener != null)
	result = "FAIL: opener set";
	else
	result = "PASS";
	log.innerText = result;
	document.title = result;
	</script>
	</body>
	</html>