config/initializers/omniauth_oauth2.rb

   1 module OpenStreetMap
   2   module OmniAuth
   3     module Strategies
   4       module OAuth2
   5         def callback_phase
   6           if request.request_method == "POST"
   7             query = URI.encode_www_form(request.params)
   8             uri = URI::Generic.build(:path => callback_path, :query => query)
   9
  10             session.options[:skip] = true
  11
  12             [303, { "Location" => uri.to_s }, []]
  13           else
  14             super
  15           end
  16         end
  17       end
  18     end
  19   end
  20 end
  21
  22 OmniAuth::Strategies::OAuth2.prepend(OpenStreetMap::OmniAuth::Strategies::OAuth2)