next.config.ts

import type { NextConfig } from "next";

const securityHeaders = [
  { key: "X-DNS-Prefetch-Control", value: "on" },
  {
    key: "Strict-Transport-Security",
    value: "max-age=63072000; includeSubDomains; preload",
  },
  { key: "X-Frame-Options", value: "SAMEORIGIN" },
  { key: "X-Content-Type-Options", value: "nosniff" },
  { key: "Referrer-Policy", value: "strict-origin-when-cross-origin" },
  {
    key: "Permissions-Policy",
    value: "camera=(), microphone=(), geolocation=()",
  },
  {
    key: "Content-Security-Policy",
    value: [
      "default-src 'self'",
      "script-src 'self' 'unsafe-inline' 'unsafe-eval'",
      "style-src 'self' 'unsafe-inline' https://fonts.googleapis.com",
      "font-src 'self' https://fonts.gstatic.com",
      "img-src 'self' data: blob:",
      "connect-src 'self'",
    ].join("; "),
  },
];

const nextConfig: NextConfig = {
  async headers() {
    return [{ source: "/(.*)", headers: securityHeaders }];
  },
};

export default nextConfig;