honestbleeps/Reddit-Enhancement-Suite — pull request #1775 by erikdesjardins (2014-11-13 00:07:19+00:00)
Title: Handle undefined subredditStylesWhitelist

I'm not sure if this is just a problem with loading dev versions of extensions or something we've changed since the last release (because I've never seen it reported), but a fresh install of RES (either loaded unpacked in Chrome, or in Firefox using `cfx run`) will crash until subredditStylesWhitelist has a value.