parse "gopher://null.host:0/\u009d\x15}\xf8\x1d\xb2\xb5 \xec\xe5\x8d\xdds=\xcd\xe5e1\xeb\x98x\xbbG\x16\xa2\xc1\xff\x89U[=mt\a\x0f": net/url: invalid control character in URL