parse "gopher://null.host:0/\u0081~\xdc\xc1\x1f]\xe1\xc7m\xfc\xf1\x88\xfa\x96 \xa66`b\x9b!\x99\xbb\x83\u007f\xc1I[\xea\x84:ȡj\xb8\xb8\x87\xd4k\xbbx3\xc2`\x8d\xd6\xf8\xb6\xef\"\xbd\x96\xf0\xe3": net/url: invalid control character in URL