parse "gopher://:0/w\x8b\xdc\xf1uK\xf8\xc0\xeaJ\x8a\xb4\x88@\x02P\x91\x15.\xbd\x02u\xedؙ\xe8\x1c\x1e\xee\xa4>\xddlZ\xba\xdd6\xf8Rr\xd0؈D\xd3ү19\xe5\xa7\xd5u\fIv\x98?R\xc4\x0f\xd3\xd4ҁ\xc8": net/url: invalid control character in URL