call

# File actionpack/lib/action_dispatch/middleware/cookies.rb, line 687
    def call(env)
      request = ActionDispatch::Request.new(env)
      response = @app.call(env)

      if request.have_cookie_jar?
        cookie_jar = request.cookie_jar
        unless cookie_jar.committed?
          response = Rack::Response[*response]
          cookie_jar.write(response)
        end
      end

      response.to_a
    end