next config for ghost blog hosted at <url>/blog

next.config.js

const BLOG_URL = process.env.BLOG_URL ?? 'https://createxyz.ghost.io/blog';
/**
 * @type {import('next').NextConfig}
 */
const nextConfig = {
  rewrites() {
    return [
      {
        source: '/blog/:path*',
        has: [
          {
            type: 'header',
            key: 'Accept',
            value: 'text/html.*',
          },
        ],
        destination: `${BLOG_URL}/:path*/`,
      },
      {
        source: '/blog/:path*',
        missing: [
          {
            type: 'header',
            key: 'Accept',
            value: 'text/html.*',
          },
        ],
        destination: `${BLOG_URL}/:path*`,
      },
    ];
  },
  headers() {
    return [
      {
        source: '/blog/:path*',
        headers: [{ key: 'x-forwarded-host', value: 'www.create.xyz' }],
      },
    ];
  },
};


module.exports = nextConfig;