parse "gopher://null.host:0/\x12\xa6-\xa5\x80\x86\x9b5\x81\xfa\x16L\xdb/\xc6\xf4g\xbc\xf0X\x8b5\x16\xa0\xad\x06v\x89\xe3g\xa4\x8a\x9f5ET=\xaa>\x1dT\x82 osl": net/url: invalid control character in URL