mkdynamic/omniauth-facebook — pull request #96 by etagwerker (2013-01-02 18:40:35+00:00)
Title: Making sure access_token doesn't get built twice

Hi!

I decided to add the condition after running into issue #73.

The solution turned out to be this one:

http://stackoverflow.com/a/14127277/615138

- Ernesto