parse "gopher://null.host:0/í\xc8{\xa9\xad\x1c\x9cI~\xe6{\xf2\xb1!\x8cN$\x9f\x11i\x8c_w\xc3\xe7\x9bq\xa5\f\xe5gz\xb9Y": net/url: invalid control character in URL