parse "gopher://null.host:0/O\xa9\xb3\xdfyk\xc9۸|\xf8l{\x8f\xdc\xc6X4\x04uEa\xa7\xdf\xfeH\xb5J4\xd9;\xe7`$R\xd4/\xa6|\u007f,c\xe9\x9d\rVlQ": net/url: invalid control character in URL