HtmlCleaner

The <script> tag is incorrectly handled when the script tag is an
empty element, as in:

<script type="text/javascript" src="file.js" />

If something follows the closed script tag, the tokenizer incorrectly
treats the content as child elements of the script tag.

The tokenizer should treat the script element as closed, such as:

<script type="text/javascript" src="file.js" > </script>