parse "gopher://null.host:0/z\x88\x87~\x80\x86nPN\a=B\xfc\x05!\x91X:\x8cJx\x19\xf8IW\x85M\xa2Y\x15\xaaC8L\xaa\xf5ߑ\xe2\xa0n\xb4!\x0eHU\x8eĸ\xaa": net/url: invalid control character in URL