parse "gopher://null.host:0/\u0091\xde\xf3h\bC\x9b\x85\x14@\x97\xd3\xe9\x12w\xc6\x05\xe9\x1b\x82\xcb{\x03\xdd\x0e\xeb\u007f\xeeߌ\xaa\x86": net/url: invalid control character in URL