text: const http = require('http');
  
  http.createServer((req, res) => {
      if (req.headers.host.startsWith('example')) {
          res.writeHead(200, {'Set-Cookie': `host=${req.headers.host};SameSite=Strict`})
      }
      if (req.headers.host.startsWith('localhost')) {
          res.write(`
              <a href="http://example.com:3000/index.html">http://example.com:3000/index.html</a>
              <script src="http://example.com:3000/script.js"></script>
              <img src="http://example.com:3000/img.jpg"/>
              <iframe src="http://example.com:3000/index.html"/>
          `)
      }
      res.end()
  }).listen(3000)
  