auth0/angular-storage — pull request #16 by kpgarrod (2014-12-05 12:51:57+00:00)
Title: Prevent storage of null or undefined values

If you accidentally store a null or undefined value, localStorage will save it OK, but JSON.parse will blow up when you try to get it back, because 'undefined' is not a valid JSON token. This fix prevents undefined values from being stored and values being stored in undefined places.