parse "gopher://\xba\xa7\xf4\xa6\x01扥\x1eL\\辙j\x85;\xa9\x12aso\xc6\xfe\x8b\x8dY\xd3\xeea\xa4\xb5n\xb1\xf9fl\xf2a/": net/url: invalid control character in URL