| <html xmlns="http://www.w3.org/1999/xhtml"> | 
 | <head> | 
 | <title>innerHTML in XHTML</title> | 
 | <link rel="author" title="Simon Pieters" href="mailto:simonp@opera.com"/> | 
 | <link rel="author" title="Ms2ger" href="mailto:ms2ger@gmail.com"/> | 
 | <link rel="help" href="http://html5.org/specs/dom-parsing.html#dom-innerhtml"/> | 
 | <link rel="help" href="http://www.whatwg.org/html5/#xml-fragment-serialization-algorithm"/> | 
 | <script src="/resources/testharness.js"></script> | 
 | <script src="/resources/testharnessreport.js"></script> | 
 | </head> | 
 | <body> | 
 | <div id="log"></div> | 
 | <iframe src="data:text/xml,<html xmlns='http://www.w3.org/1999/xhtml'><foo--/></html>"></iframe> | 
 | <script><![CDATA[ | 
 | var t = async_test(); | 
 | window.onload = t.step_func(function() { | 
 |  var foo = window[0].document.documentElement.firstChild; | 
 |  assert_throws('SyntaxError', function() { | 
 |  foo.innerHTML = 'x<\/foo--><\!--y'; | 
 |  // This is ridiculous. | 
 |  }); | 
 |  t.done(); | 
 | }); | 
 | ]]></script> | 
 | </body> | 
 | </html> |