next.config.mjs

import createNextIntlPlugin from "next-intl/plugin";
const withNextIntl = createNextIntlPlugin("./i18n/i18n.ts");

// Content Security Policy
// https://nextjs.org/docs/app/building-your-application/configuring/content-security-policy
const cspHeader = `
    default-src 'self';
    script-src 'self' 'unsafe-eval' 'unsafe-inline';
    style-src 'self' 'unsafe-inline';
    img-src 'self' blob: data:;
    font-src 'self';
    object-src 'none';
    base-uri 'self';
    form-action 'self';
    frame-ancestors 'none';
    upgrade-insecure-requests;
`;

/** @type {import('next').NextConfig} */
const nextConfig = {
  reactStrictMode: true,
  experimental: {},
  async headers() {
    return [
      {
        source: "/(.*)",
        headers: [
          {
            key: "Content-Security-Policy",
            value: cspHeader.replace(/\n/g, ""),
          },
        ],
      },
    ];
  },
};

export default withNextIntl(nextConfig);