Copy for LLM button not working

I noticed that on the website the Copy for LLM button isn't working correctly:

I tried locally and it works:

I think the vercel.json config currently blocks clipboard-write with clipboard-write=(). I think the version that would allow clipboard-write for same-origin only would use clipboard-write=(self)` on the deployment would look something like this:

{
  "build": {
    "env": {
      "YARN_VERSION": "1.22.22"
    }
  },
  "headers": [
    {
      "source": "/(.*)",
      "headers": [
        {
          "key": "Permissions-Policy",
          "value": "clipboard-write=(self)"
        }
      ]
    }
  ]
}

Inspect vercel.json and the deployed Permissions-Policy header for the documentation website. Compare the current clipboard-write setting with the proposed same-origin policy, then verify that the Copy for LLM button works on the deployed site.