third_party/WebKit/LayoutTests/fast/dom/class-all-whitespace.html - chromium/src - Git at Google

 <html>
 <head>
     <style>
         div.class {  }
     </style>
     <script>
         if (window.testRunner)
             testRunner.dumpAsText();
     </script>
 </head>
 <body>
     <p>Tests that an all-whitespace <tt>class</tt> attribute does not cause an assertion failure.</p>
     <div class=" "></div>
 </body>
 </html>
	<html>
	<head>
	<style>
	div.class { }
	</style>
	<script>
	if (window.testRunner)
	testRunner.dumpAsText();
	</script>
	</head>
	<body>
	<p>Tests that an all-whitespace <tt>class</tt> attribute does not cause an assertion failure.</p>
	<div class=" "></div>
	</body>
	</html>