parse "gopher://null.host:0/Z\xb9\x92\x8b\x85\xd2\xd7i\xcf\x1f.˄\xc8\xe7\xb0\xd5M\xbe\x93ԭ\x9f\x9a\xa4\x1d\x89\xfa\x9b\x06G\xbc\xaeÿ\xef\x13\xd9.:F\xdd\xdc\xe9>'\x82K8": net/url: invalid control character in URL