Email-Validator/next.config.js at main · RenanBF2/Email-Validator · GitHub

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/** @type {import('next').NextConfig} */

/**
 * Security headers to protect against common web vulnerabilities.
 */
const securityHeaders = [
  {
    key: 'X-DNS-Prefetch-Control',
    value: 'on',
  },
  {
    key: 'X-Content-Type-Options',
    value: 'nosniff',
  },
  {
    key: 'X-Frame-Options',
    value: 'DENY',
  },
  {
    key: 'X-XSS-Protection',
    value: '1; mode=block',
  },
  {
    key: 'Referrer-Policy',
    value: 'strict-origin-when-cross-origin',
  },
  {
    key: 'Permissions-Policy',
    value: 'camera=(), microphone=(), geolocation=(), interest-cohort=()',
  },
  {
    key: 'Content-Security-Policy',
    value: [
      "default-src 'self'",
      "script-src 'self' 'unsafe-inline' 'unsafe-eval'",
      "style-src 'self' 'unsafe-inline'",
      "img-src 'self' data: blob:",
      "font-src 'self'",
      "connect-src 'self' https://dns.google",
      "frame-ancestors 'none'",
      "base-uri 'self'",
      "form-action 'self'",
    ].join('; '),
  },
];

const nextConfig = {
  reactStrictMode: true,
  output: 'standalone',

  /**
   * Add security headers to all routes.
   */
  async headers() {
    return [
      {
        // Apply security headers to all routes
        source: '/:path*',
        headers: securityHeaders,
      },
    ];
  },

  /**
   * Powered by header removal for security.
   */
  poweredByHeader: false,
};

module.exports = nextConfig;