src/third_party/web_platform_tests/conformance-checkers/xhtml/elements/header/002-novalid.xhtml - cobalt - Git at Google

 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
 <title>"header" with "header" descendant</title>
 </head>
 <body>
 <header>
 <header></header>
 </header>
 </body>
 </html>
	<html xmlns="http://www.w3.org/1999/xhtml">
	<head>
	<title>"header" with "header" descendant</title>
	</head>
	<body>
	<header>
	<header></header>
	</header>
	</body>
	</html>