parse "gopher://null.host:0/lY\x11l\xe3\xf1\xcb?\x97\xe7\x01\x9a\xb5v<\xb8L\xa3\x06\x12\x9d$J\xbd\xbc\xb8\xb4\xd4;\xba\x00": net/url: invalid control character in URL