chromium/third_party/blink/web_tests/fast/parser/comment-in-script.html

<!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="--">