parse "gopher://null.host:0/á\xe3\xe0\x96µ\xbd\r\x85\x86\xd3M\x02i[\xcaٛL\x92\x1c\x0f2 v8\xd7\x1d\xa7@\xe2=\xa1\x8cL0": net/url: invalid control character in URL