next.config.mjs

const ContentSecurityPolicy = `
  default-src 'self';
  img-src * data: blob:;
  media-src * data: blob:;
  object-src 'none';
  style-src 'self' 'unsafe-inline';
  font-src 'self';
  frame-src * data:;
  script-src 'self' 'unsafe-eval' 'unsafe-inline' 'wasm-unsafe-eval' 'inline-speculation-rules' *.thirdweb.com *.thirdweb-dev.com vercel.live js.stripe.com;
  connect-src * data: blob:;
  worker-src 'self' blob:;
  block-all-mixed-content;
`;

const securityHeaders = [
  {
    key: "X-DNS-Prefetch-Control",
    value: "on",
  },
  {
    key: "X-XSS-Protection",
    value: "1; mode=block",
  },
  {
    key: "X-Frame-Options",
    value: "SAMEORIGIN",
  },
  {
    key: "Referrer-Policy",
    value: "origin-when-cross-origin",
  },
  {
    key: "Content-Security-Policy",
    value: ContentSecurityPolicy.replace(/\s{2,}/g, " ").trim(),
  },
];

/** @type {import('next').NextConfig} */
const nextConfig = {
  eslint: {
    ignoreDuringBuilds: true,
  },
  productionBrowserSourceMaps: false,
  experimental: {
    webpackBuildWorker: true,
    webpackMemoryOptimizations: true,
    serverSourceMaps: false,
  },
  async headers() {
    return [
      {
        source: "/(.*)",
        headers: securityHeaders,
      },
    ];
  },
  webpack: (config) => {
    config.externals.push("pino-pretty", "lokijs", "encoding");
    return config;
  },
  async redirects() {
    return [
      {
        source: "/connect/sign-in",
        destination: "/connect/sign-in/button",
        permanent: false,
      },
      {
        source: "/connect/account-abstraction",
        destination: "/connect/account-abstraction/connect",
        permanent: false,
      },
    ];
  },
};

export default nextConfig;