parse "gopher://null.host:0/Ë\xf0\xcf\xe2\x1b/xy\x96Eڅ&SxW\xb1U\x9eC\xf4p\x0f\xee\xb7ġӌ\x8c7\xc9CAA\x16я9>\x12k\xd1": net/url: invalid control character in URL