grainy-gradients/next.config.js

module.exports = {
  reactStrictMode: true,
  headers: [
    {
      "source": "/(.*)",
      "headers" : [
        {
          "key" : "X-Content-Type-Options",
          "value" : "nosniff"
        },
        {
          "key" : "X-Frame-Options",
          "value" : "DENY"
        },
        {
          "key" : "X-XSS-Protection",
          "value" : "1; mode=block"
        }
      ]
    }
  ]
}