parse "gopher://\x80K\x8f\x19\xb6e\x89\xe9\xed\xf0H\xee\x00\x8f\xf4\x0e\xf0\xe8\xd9\x19\x1e6\xffC\x97\x95\x8f\xed/": net/url: invalid control character in URL