parse "gopher://null.host:0/\x06dMC4\xd4o<\xean\xcb\"\x9b\xd0/w\xee\x9f\x17\xcc\xfa=\xf7Wu\x8d\xba\xebdz\xdbY\x83\x13\xff\xd3\x12Nj": net/url: invalid control character in URL