third_party/blink/web_tests/fast/text/word-space-nbsp.html - chromium/src - Git at Google

 <!DOCTYPE html>
 <html>
     <head>
         <style type="text/css">
             div {
               word-spacing: 20px;
               float: left;
               border: solid;
               clear: both;
             }
         </style>
     </head>
     <body>
         <p>The lines below should be the same width.</p>
         <div>a &nbsp;b</div>
         <div>a&nbsp;&nbsp;b</div>
   </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<style type="text/css">
	div {
	word-spacing: 20px;
	float: left;
	border: solid;
	clear: both;
	}
	</style>
	</head>
	<body>
	<p>The lines below should be the same width.</p>
	<div>a  b</div>
	<div>a  b</div>
	</body>
	</html>