const securityHeaders = [ { key: 'X-DNS-Prefetch-Control', value: 'on', }, { key: 'X-XSS-Protection', value: '1; mode=block', }, { key: 'X-Content-Type-Options', value: 'nosniff', }, { key: 'Referrer-Policy', value: 'strict-origin', }, { key: 'Content-Security-Policy', value: `frame-ancestors 'self';`, }, { key: 'X-Frame-Options', value: 'SAMEORIGIN', }, { key: 'Strict-Transport-Security', value: 'max-age=31536000; includeSubDomains; preload', }, { key: 'Permissions-Policy', value: 'camera=(), microphone=(), geolocation=()', }, ] module.exports = { async headers() { return [ { source: '/:path*', headers: securityHeaders, }, ] }, reactStrictMode: true, poweredByHeader: false, }