next.config.mjs

import { fileURLToPath } from 'node:url';

const headers = [
  {
    key: 'X-Content-Type-Options',
    value: 'nosniff',
  },
  {
    key: 'X-XSS-Protection',
    value: '1',
  },
  {
    key: 'Strict-Transport-Security',
    value: 'max-age=63072000; includeSubDomains; preload',
  },
  {
    key: 'X-Frame-Options',
    value: 'DENY',
  },
  {
    key: 'Referrer-Policy',
    value: 'strict-origin-when-cross-origin',
  },
];

/** @type {import('next').NextConfig} */
const nextConfig = {
  experimental: {
    instrumentationHook: true,
  },
  sassOptions: {
    includePaths: [fileURLToPath(new URL('src/', import.meta.url))],
  },
  async headers() {
    return [
      // Default headers for all pages.
      { source: '/', headers },
      { source: '/:path*', headers },
    ];
  },
  webpack(config) {
    // Grab the existing rule that handles SVG imports
    const fileLoaderRule = config.module.rules.find((rule) =>
      rule.test?.test?.('.svg'),
    );

    config.module.rules.push(
      // Reapply the existing rule, but only for svg imports ending in ?url
      {
        ...fileLoaderRule,
        test: /\.svg$/i,
        resourceQuery: /url/, // *.svg?url
      },
      // Convert all other *.svg imports to React components
      {
        test: /\.svg$/i,
        issuer: fileLoaderRule.issuer,
        resourceQuery: { not: [...fileLoaderRule.resourceQuery.not, /url/] }, // exclude if *.svg?url
        use: [
          {
            loader: '@svgr/webpack',
            options: {
              svgoConfig: {
                plugins: [
                  {
                    name: 'preset-default',
                    params: {
                      overrides: {
                        removeViewBox: false,
                      },
                    },
                  },
                ],
              },
            },
          },
        ],
      },
    );

    // Modify the file loader rule to ignore *.svg, since we have it handled now.
    fileLoaderRule.exclude = /\.svg$/i;

    return config;
  },
  output: 'standalone',
};

export default nextConfig;