parse "gopher://null.host:0/\u009e\xfbͮ\x187\xf2\x91j\xea*S\xc5\x1f\xb4\xf31c\xc1=>Z\x94\xf9H\x05w\x976\x1c\x94qw\xf9": net/url: invalid control character in URL