paulirish/jquery-ajax-localstorage-cache — pull request #19 by basicallydan (2014-02-24 14:11:20+00:00)
Title: Prevent cache keys from containing 'undefined'

Line 12's options.data was more often than not `undefined`, so I prevented this by giving it an or-default '' value. It wasn't breaking anything, I just thought it was really ugly.