parse "gopher://null.host:0/q\xe3\xcbӟ\xddA\x9d9\xc7O\xb7\xa4\xd2\xf8\x93Z\xf0\x04\xcbl\x1b\xady~\xa2R\xd6K\xf3\xb8b\xb8\xc2": net/url: invalid control character in URL