parse "gopher://null.host:0/±\xcd\xe6\x12\rp\x95!\xe9 K\xcc\xf5\x8b\x1av\xa6A\xde\xcfQ\xb0\x96\xe3\xc7\xce\xcaæ\x1d\xb4\xa9\x1a|\x99\xcc/\xfe\xa8\xb6\xd2謙;|!P\x03\xf4\xa7~\xb5\xe1Z]j̰\x1b\xfd\x8f\v\xbcB\xef<^>@\xef_\xb0u|\x99\xe6": net/url: invalid control character in URL