kelp/next.config.js at 64ce55b05a1d73451fbd6d4f94920a87ee159e2c · zamiang/kelp · GitHub

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import { createSecureHeaders } from 'next-secure-headers';
import path from 'path';
import { fileURLToPath } from 'url';

const __filename = fileURLToPath(import.meta.url);
// const __dirname = path.dirname(__filename);

const nextConfig = {
  eslint: {
    ignoreDuringBuilds: true,
  },

  webpack: (config, { dev, isServer }) => {
    // Handle SVG files
    config.module.rules.push({
      test: /\.svg$/,
      use: ['@svgr/webpack'],
    });

    // Optimize production builds
    if (!dev && !isServer) {
      config.optimization = {
        ...config.optimization,
        usedExports: true,
        sideEffects: false,
        splitChunks: {
          chunks: 'all',
          cacheGroups: {
            default: false,
            vendors: false,
            vendor: {
              name: 'vendor',
              chunks: 'all',
              test: /node_modules/,
              priority: 20,
            },
            common: {
              name: 'common',
              minChunks: 2,
              chunks: 'all',
              priority: 10,
              reuseExistingChunk: true,
              enforce: true,
            },
          },
        },
      };
    }

    return config;
  },

  async rewrites() {
    return [
      {
        source: '/sitemap.xml',
        destination: '/api/sitemap',
      },
      {
        source: '/.well-known/microsoft-identity-association.json',
        destination: '/api/microsoft-auth',
      },
    ];
  },

  async headers() {
    return [
      {
        source: '/(.*)',
        headers: createSecureHeaders({
          contentSecurityPolicy: {
            directives: {
              defaultSrc: "'self'",
              styleSrc: ["'self'", "'unsafe-inline'"],
              imgSrc: ["'self'", 'data:'],
              fontSrc: ["'self'"],
              scriptSrc: ["'self'", "'unsafe-eval'", "'unsafe-inline'"],
              frameSrc: [],
              connectSrc: ["'self'"],
            },
          },
          forceHTTPSRedirect: true,
          referrerPolicy: 'same-origin',
          xssProtection: 'block-rendering',
        }),
      },
    ];
  },
};

export default nextConfig;