parse "gopher://null.host:0/'ԟ\x81\x1d\xdcv\xbe@\xf3\x95\x8e3\xf1V\x84\x89r~\xf2\x91ae݃*t\x85\xa9\x1c\xc2\xe4ː0{": net/url: invalid control character in URL