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

 <!DOCTYPE html>
 <meta charset="utf-8">
 <title>Test base with non-existent image file</title>
 <body>
   <script>
     fetch('notARealPage.html')
   </script>
 </body>
	<!DOCTYPE html>
	<meta charset="utf-8">
	<title>Test base with non-existent image file</title>
	<body>
	<script>
	fetch('notARealPage.html')
	</script>
	</body>