parse "gopher://null.host:0/&\xa3O\xf1\xad\xc1Ȑo3\x8c\xb5\xcf\xc8Ma\xfe8\x18\xfb\xa0\xfc1\xa2\xa3\xb1\xf9\xd37\xea˻\b\x02@ˇ3": net/url: invalid control character in URL