# File lib/httpauth/digest.rb, line 167
        def request_digest_a2(h)
          # TODO: check for known qop values (look out for the safari qop quote bug)
          if h[:qop] == 'auth-int'
            digest_h digest_concat(h[:method], h[:uri], digest_h(h[:request_body]))
          else
            digest_h digest_concat(h[:method], h[:uri])
          end
        end