content/test/data/render_frame_host/beforeunload.html - chromium/src - Git at Google

 <!DOCTYPE html>
 <html>
 <head>
 </head>
 <body>
 </body>
 <script>
 window.onbeforeunload=function(e){
   return 'foo';
 }
 </script>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	</head>
	<body>
	</body>
	<script>
	window.onbeforeunload=function(e){
	return 'foo';
	}
	</script>
	</html>