next.config.mjs

/** @type {import('next').NextConfig} */
const nextConfig = {
  async headers() {
    return [
      {
        source: '/:path*',
        headers: [
          {
            key: 'X-DNS-Prefetch-Control',
            value: 'on'
          },
          {
            key: 'Strict-Transport-Security',
            value: 'max-age=31536000; includeSubDomains'
          },
          {
            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-eval' 'unsafe-inline'",
              "style-src 'self' 'unsafe-inline'",
              "img-src 'self' data: https:",
              "connect-src 'self'",
              "manifest-src 'self'",
              "report-uri /api/csp-report",
              "report-to default"
            ].join('; ')
          },
          {
            key: 'Report-To',
            value: JSON.stringify({
              group: 'default',
              max_age: 86400,
              endpoints: [{ url: '/api/csp-report' }]
            })
          }
        ]
      }
    ];
  }
};

export default nextConfig;