parse "gopher://null.host:0/°\x9a-\xc2U^\x06\xfe&\xaeE2-\x8a\x8c\xf2\x14\xba\x15\x02M\xde\x18r!~\x14\x1aQ^\x10\x16-\xae8\xea\x056\x1e": net/url: invalid control character in URL