I use omniauth-facebook gem. Generally I'm completely following railscast episode #360 (http://railscasts.com/episodes/360-facebook-authentication?autoplay=true) So I did all like in tutorial.
After creating app on facebook, I set it URL a http://localhost:3000/, enabled sandbox mode.
As Ryan says, after creating omniauth.rb, http://localhost:3000/auth/facebook should redirect me to my FB app page.
But nothing happens. No errors, just empty page.
I'm really sure, that did everything like in tutorial, and have no idea, what the trouble is
UPD: now it shows error:
{
"error": {
"message": "Missing client_id parameter.",
"type": "OAuthException",
"code": 101
}
}