properly generate some urls

app/helpers/application_helper.rb

@@ -43,6 +43,10 @@ module ApplicationHelper
     end
   end
 
+  def omniauth_login_url(provider)
+    "/auth/#{provider}"
+  end
+
   # Whether the current page is the page of a room/meeting or not
   def on_room_or_meeting_page?
     params[:id].present?