LayoutTests/mathml/fenced-whitespace-separators-crash.html - WebKit - Git at Google

 <html>
 <head>
 <script>
     if (window.testRunner)
         testRunner.dumpAsText();
 </script>
 </head>

 <body>
 <math>
     <mfenced separators=" ">
         <mrow>
             <mrow>
                 <mi>v</mi>
             </mrow>
             <mi>i</mi>
         </mrow>
     </mfenced>
 </math>
 </body>
 </html>
	<html>
	<head>
	<script>
	if (window.testRunner)
	testRunner.dumpAsText();
	</script>
	</head>

	<body>
	<math>
	<mfenced separators=" ">
	<mrow>
	<mrow>
	<mi>v</mi>
	</mrow>
	<mi>i</mi>
	</mrow>
	</mfenced>
	</math>
	</body>
	</html>