content/test/data/site_isolation/html4_dtd.html - chromium/src - Git at Google

 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
 <body>
   This is a document with a HTML4 style DTD.
 </body>
	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
	<body>
	This is a document with a HTML4 style DTD.
	</body>