[thathoo]

Yep, that worked for me: added this in devise.rb: config.omniauth :facebook, FB_APP_ID, FB_APP_SECRET, {:scope => '.....', :client_options => {:ssl => {.....}, :display => 'popup', :setup => true, :site => 'https://graph.facebook.com, :authorize_url => 'https://www.facebook.com/dialog/oauth, :token_url => '/oauth/access_token'}}