parse "gopher://null.host:0/\u0092\xf5^m\x83\f~\xfa\an\xd7~\x17\xec\xd4\b\x94\xfa\xe7=\xccN\xac\xf2\xfd\xa0`\xf2\xbc\x9e5": net/url: invalid control character in URL