parse "gopher://\v\xdf\xc6݉\x81\x1f\xb1\x83m\xbf\x98\xf18Tw\xf6Em\xcf\xe1\x15C\xd4\xf1\x14\fi\xb7\xd8s\x8do]\xbe\xf3:\xad\x14\xe3\xf1\x02ώ\r\x02\x814\x8b\xbd\f\xbf\xb9X\xf9\xfd\x8c59<\xea/": net/url: invalid control character in URL