parse "gopher://null.host:0/y9l\xc9\x05g\x94\xba\u0080\xb1\u007f\xe2\xd9?±yX\xcc2\x83bo\x9a\u0086<\x80\xa0\xe7H\xa0X\x9c\x00Q\xee": net/url: invalid control character in URL