server {
  listen 80;
  # ok: header-redefinition
  add_header X-Frame-Options "DENY" always;
  location / {
      return 200 "index";
  }

  location /new-headers {
    # Add special cache control
    # ruleid: header-redefinition
    add_header Cache-Control "no-cache, no-store, max-age=0, must-revalidate" always;
    # ruleid: header-redefinition
    add_header Pragma "no-cache" always;

    return 200 "new-headers";
  }
}