update_cookies_from_jar

# File actionpack/lib/action_dispatch/middleware/cookies.rb, line 349
      def update_cookies_from_jar
        request_jar = @request.cookie_jar.instance_variable_get(:@cookies)
        set_cookies = request_jar.reject { |k, _| @delete_cookies.key?(k) || @set_cookies.key?(k) }

        @cookies.update set_cookies if set_cookies
      end