Given the list of characters that are escaped already, I can’t think of a reason why you’d want/need to escape / in a quoted attribute value or an element’s content.

escape() is only meant to be used in these three situations:

<p>HERE</p>
<p data-foo="HERE"></p>
<p data-foo='HERE'></p>

Whoops, typo in commit message — to clarify, this is about the / character, not the \ character. I’ll fix the commit message upon mergin the pull (if it gets approved).