parse "gopher://null.host:0/h\x0e\x12\xff\xb1\xd0Pl\xf0\xa4\x14\xb4\x1eƒ:q\xbboZc,(\xbc\xbcfll\xb8\x02\xef\xf4\xe5H)\xden_\xfa\x87\x1du\xbfF\xc7v\x1d\x8c\xd6S\xfb\xf9": net/url: invalid control character in URL