Add a Permissions-Policy on Vercel

Why it matters

Without one, any script on your pages, including injected or third-party code, can ask visitors for the camera, microphone, location and similar features. Turning off what you do not use limits what such code can request.

Staged change. Do this in stages and check each one before the next, so a mistake does not break your site or your mail.

The fix

1. Add the header (adjusted to the features you use) to vercel.json and redeploy.
2. Test the pages that use those features.

{
  "headers": [
    {
      "source": "/(.*)",
      "headers": [
        { "key": "Permissions-Policy", "value": "camera=(), microphone=(), geolocation=(), payment=(), usb=()" }
      ]
    }
  ]
}

Read the documentation ↗(opens in a new tab)

Related

• Reported by the Permissions-Policy check
• Replace Feature-Policy with Permissions-Policy
• Fix the Permissions-Policy syntax
• Stop allowing powerful features for every origin