parse "gopher://null.host:0/H\f.c\x1aF\xd8\x15\x18d\xa1\xcaB\xa2\xf0]\xc0\x8c\xa2(\xfcj\xf0\x06\xd4\x0f\xf5\xeez\xf5.": net/url: invalid control character in URL