parse "gopher://\xc8\xf8bQo\x10\xb3\x19h\x86\xdb\xde%H\x1c,\xbe䓔\xfd\xb7ܳ\x03\fw\xf2*@S\x18o\x1bO!\x13\xe1\xda/": net/url: invalid control character in URL