parse "gopher://null.host:0/~@`\a)\xb3\x8c>\xdd\u0380\xb5C\x0f\xe6\x8dڋ\xbaQ\x9c\xcf^\xd5Z\xc7!\xc9'\x17\x05\x83\aK\x1d[": net/url: invalid control character in URL