location /coditech/ {
    proxy_pass http://127.0.0.1:38500/;
    proxy_http_version 1.1;
    proxy_set_header Host               $host;
    proxy_set_header X-Real-IP          $remote_addr;
    proxy_set_header X-Forwarded-For    $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto  $scheme;

    # CORS for public (no credentials)
    add_header Access-Control-Allow-Origin  *                       always;
    add_header Access-Control-Allow-Methods GET,POST,OPTIONS        always;
    add_header Access-Control-Allow-Headers Origin,Content-Type,Accept,Authorization always;

    # Preflight
    if ($request_method = OPTIONS) {
        add_header Access-Control-Allow-Origin  *;
        add_header Access-Control-Allow-Methods GET,POST,OPTIONS;
        add_header Access-Control-Allow-Headers Origin,Content-Type,Accept,Authorization;
        add_header Access-Control-Max-Age 1728000;
        add_header Content-Length 0;
        return 204;
    }
}