third_party/blink/web_tests/fast/parser/stylesheet-added-in-custom-element-during-parse-expected.html - chromium/src - Git at Google

 <!DOCTYPE html>
 <html>
   <body>
     <span>This renders</span>
     <h1>I am a custom element</h1>
     <span>This should also render</span>
   </body>
 </html>
	<!DOCTYPE html>
	<html>
	<body>
	<span>This renders</span>
	<h1>I am a custom element</h1>
	<span>This should also render</span>
	</body>
	</html>