parse "gopher://null.host:0/.\x9a\\\xa1\xd5\xc5\r\\\x18\xab{\xee\xf9\x93\x1d!\x10L\xe12lLq\xbe\xa3\x00\x1a\xbc\xf4Ҩ\xd3\x10j\xfe\x9fMc": net/url: invalid control character in URL