parse "gopher://null.host:0/\x0f\xba\x1f\xe6\xd5\xda9\xe4\xda\xf7k\xac\xc4*1\xe2U\x16k\xd0:r\xb6\xe5 \x1cS:@H\x14\xdf": net/url: invalid control character in URL