Now working

app/assets/stylesheets/user/_constants.css.sass

@@ -33,7 +33,7 @@ $side-spacing: 5px
   min-height: 61px
   height: 61px
   padding-left: 49px
-  padding-right: 53px 
+  padding-right: 52px 
   .button-bar-inner
     //+single-box-shadow(#000, 0px, 4px, 8px, 0px, true)
     background-color: white

app/controllers/users/omniauth_callbacks_controller.rb

@@ -11,7 +11,8 @@ class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController
     if @user.persisted?
       flash[:notice] = I18n.t "devise.omniauth_callbacks.success", :kind => "Facebook"
       sign_in @user
-      redirect_to user_root_path, :event => :authentication, :current_user => @user
+      #redirect_to user_root_path, :event => :authentication, :current_user => @user # infinite loop
+      redirect_to user_obtain_token_path, :event => :authentication, :current_user => @user
     else
       session["devise.facebook_data"] = request.env["omniauth.auth"]
       redirect_to new_user_registration_url