Can't serve file with 404 code

[saidg23]

I would like to serve a custom 404 page but the file isn't being sent with the right response code.

struct mg_http_message err;
err.method = mg_str("HTTP/1.1");
err.uri = mg_str("404");
err.query = mg_str("");
err.proto = mg_str("Not found");
mg_http_serve_file(c, &err, "404.html", &opts);

This does not seem to send the desired response.

[cpq]

This commit adds the 404 page support: 4dd1891

This is the usage example:

      struct mg_http_serve_opts opts = {
        .root_dir = "./web_root",
        .page404 = "./web_root/404.html",
      };
      mg_http_serve_dir(c, hm, &opts);

[saidg23]

Thank you!