next.config.mjs

/** @type {import('next').NextConfig} */
const nextConfig = {
  basePath: process.env.NEXT_PUBLIC_BASE_PATH ?? '',
  async headers() {
    return [
      {
        // matching all API routes
        source: '/api/:path*',
        headers: [
          // { key: 'Access-Control-Allow-Credentials', value: 'true' },
          {
            key: 'Access-Control-Allow-Origin',
            value: process.env.ORIGIN ?? '*',
          }, // replace this your actual origin
          {
            key: 'Access-Control-Allow-Methods',
            value: 'GET,DELETE,PATCH,POST,PUT',
          },
          // {
          //   key: 'Access-Control-Allow-Headers',
          //   value:
          //     'X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version',
          // },
        ],
      },
    ];
  },
};

export default nextConfig;