parse "gopher://null.host:0/\u0081\x840;\x05\x9a]\x93}\xb7\xde\xf2B\xaf\xd11[\xfe\x9cl\xd5-d\x9f\xfc\x1e&g\xb0\x1f\xa2]9\xe5h\xa8U\x1c f>\x13\xa0\xf8m\f\x82\x15\u007f\r\xf0\xc3I\xf3!\xba\xc4m\x18\u007f|T\x05\xc8\xde,\xbf\x10@\xe1W\xdd&,\xfc\xca": net/url: invalid control character in URL