parse "gopher://null.host:0/\u009f@\xaa\xb7\xf9g\xce$\xa4\x8b\x17yM\xb3\xd8)\x11eߟT\xa6\xc7\\^<\xfd\xfd\xc6\x01\xdbyͱ\xc7": net/url: invalid control character in URL