chrisben/imgcache.js — pull request #79 by jBenes (2014-09-29 13:19:31+00:00)
Title: getCachedFileURL - err callback made voluntary

Hi,
I have added condition in method getCachedFileURL in order to make error callback voluntary.

BTW my text editor removed trailing spaces from this file. If you don't like it, I can revert it and make this PR again.