chrome/test/data/showmodaldialog_dialog.html - chromium/src - Git at Google

 <html>
 <head>
 <title>ModalDialogTitle</title>
 </head>
 <body onload="window.close()" onbeforeunload="window.returnValue='SUCCESS'">
 </body>
 </html>
	<html>
	<head>
	<title>ModalDialogTitle</title>
	</head>
	<body onload="window.close()" onbeforeunload="window.returnValue='SUCCESS'">
	</body>
	</html>