parse "gopher://7\x8f\xc2gp\xa7\x18I\x881oRx\x951\xe7o\xc6ϑ\xae\xee\xe1\xafW2\xdf\xc2:v\xf9\xaa\xcd9\x8f^\xde:0/\x1f": net/url: invalid control character in URL