parse "gopher://null.host:0/\f\x90\x97\xef\xdd\x02\x02|\xeb\xd2&\x1aH\u0380\x12\x8f\xf8\x95\x9f\xb2\x88L\xa4s\xfa\x9e*\xa6\x19\x8c\x85": net/url: invalid control character in URL