Dumb question

[JustK2]

What should the callback URL be for the landing page of this app? Once I authenticate through Twitter, Facebook, Google, etc...I get a not found error...I have poured through Redis and Apache logs and it doesn't seem to be any other cause.

Thank you in advance. :)

[Kukunin]

It should be /users/auth/:provider/callback, e.g. /users/auth/twitter/callback