parse "gopher://null.host:0/Í\x80\x1d\xd3'\xd3\x01\x16\xac\x12\xa0\xe3\xae_RԿ\xb5e\xfa\xd9O\x9e\u007f\xcag\x17\xc6\x18\xefv": net/url: invalid control character in URL