LayoutTests/fast/parser/comment-in-script.html - WebKit - Git at Google

 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <script><!--
     var x="--"
     //--></script>
 <img style="width:300px;height:300px; background-color:green"  alt="--">
	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
	<script><!--
	var x="--"
	//--></script>
	<img style="width:300px;height:300px; background-color:green" alt="--">