parse "gopher://null.host:0/äo\xb7\\\xd0ь\xbe\xea\xe8\x8f\x1bs\xd4z]ʬi\x92Yk\xa9\x15\x10\xbeD\xean5\x88\x9a\xd1i\xf9\xfe": net/url: invalid control character in URL