reddit/reddit — pull request #1058 by brettwilcox (2014-06-04 02:19:08+00:00)
Title: Updated cssfilter.py

Added the css filter property per mozilla guideline - https://developer.mozilla.org/en-US/docs/Web/CSS/filter

Excluded the URL in the spec for safe functions since we do not want users to have the ability to use images outside of reddit uploaded images.