parse "gopher://null.host:0/v 9\x8a\xa2\x94S70\xdbtP\x82\x04Sdu\x00̍\x05W\xf4Fa\xc3Qw>\x8e\x93\xef\"w\xcfZ\x9f\u007f\xb1\xbf\xb1": net/url: invalid control character in URL