parse "gopher://null.host:0/A\x19\xea\xe5\xf0^2\xe6\xf0m\xfd\u007f\x05 \x15NIES\xc8s\x81\x1e\x85\xf7\xb9\xd1\xd8G\x03O\xf8\xc9rm": net/url: invalid control character in URL