call (ActionController::Session::AbstractStore)

    # File lib/action_controller/session/abstract_store.rb, line 116
          def call(env)
            session = SessionHash.new(self, env)

            env[ENV_SESSION_KEY] = session
            env[ENV_SESSION_OPTIONS_KEY] = @default_options.dup

            response = @app.call(env)

            session_data = env[ENV_SESSION_KEY]
            options = env[ENV_SESSION_OPTIONS_KEY]

            if !session_data.is_a?(AbstractStore::SessionHash) || session_data.send(:loaded?) || options[:expire_after]
              session_data.send(:load!) if session_data.is_a?(AbstractStore::SessionHash) && !session_data.send(:loaded?)

              sid = options[:id] || generate_sid

              unless set_session(env, sid, session_data.to_hash)
                return response
              end

              cookie = Rack::Utils.escape(@key) + '=' + Rack::Utils.escape(sid)
              cookie << "; domain=#{options[:domain]}" if options[:domain]
              cookie << "; path=#{options[:path]}" if options[:path]
              if options[:expire_after]
                expiry = Time.now + options[:expire_after]
                cookie << "; expires=#{expiry.httpdate}"
              end
              cookie << "; Secure" if options[:secure]
              cookie << "; HttpOnly" if options[:httponly]

              headers = response[1]
              unless headers[SET_COOKIE].blank?
                headers[SET_COOKIE] << "\n#{cookie}"
              else
                headers[SET_COOKIE] = cookie
              end
            end

            response
          end