parse "gopher://null.host:0/\u008a\xe5\xff\xac/[$\x8c\fy\x85D\xbe\xd4\xd1\xce,\xc8-1)*\xf8\x9f\xc1-wH$5\x12I\xd0q\xb7u\x18\xac\a\xe1": net/url: invalid control character in URL