next.config.mjs

import withSerwistInit from "@serwist/next";

const withSerwist = withSerwistInit({
  swSrc: "src/app/sw.ts",
  swDest: "public/sw.js",
});

/** @type {import('next').NextConfig} */
const nextConfig = {
  reactStrictMode: true,
  compiler: {
    removeConsole: process.env.NEXT_PUBLIC_MODE === "production",
  },
  async headers() {
    return [
      {
        source: "/(.*)",
        headers: [
          {
            key: "X-Content-Type-Options",
            value: "nosniff",
          },
          {
            key: "X-Frame-Options",
            value: "DENY",
          },
          {
            key: "Referrer-Policy",
            value: "strict-origin-when-cross-origin",
          },
        ],
      },
      {
        source: "/sw.js",
        headers: [
          {
            key: "Content-Type",
            value: "application/javascript; charset=utf-8",
          },
          {
            key: "Cache-Control",
            value: "no-cache, no-store, must-revalidate",
          },
          {
            key: "Content-Security-Policy",
            value: "default-src 'self'; script-src 'self'",
          },
        ],
      },
    ];
  },
};

export default withSerwist(nextConfig);