szimek/signature_pad — pull request #22 by TheJosh (2013-09-30 01:52:57+00:00)
Title: Use jQuery events instead of addEventListener for IE8 support (when using excanvas)

I haven't updated the minified version, and I don't expect you to pull this in it's current state because I'm guessing you don't want a dependency on jQuery, but nonetheless, here is a fix for anyone out there who wants to support IE8, and is using jQuery anyway.