parse "gopher://null.host:0/\f6\x9c$`\xdc$`\xec\x94t\x12\xc7 \x81\xb6\x18\x17\xc6\xd8\x1fc\xfc\x04\x9f\xce9\xdc\v\xbd\x8f\xf1Ex\xff\x84\xb7\xde\b\xf4s\b/\x02=\x02\xb1slm9r=p]\x8fΙNE\x83g*": net/url: invalid control character in URL