chromium/content/test/data/site_isolation/js-html-polyglot2.html

<!-- comment --> <script type='text/javascript'>
//<![CDATA[

// This is a regression test for https://crbug.com/839945
// which found out that some script resources are served
// with text/html content-type and with a body that is
// both a valid html and a valid javascript.
var blah = 123;

//]]>--></script>