Fix the Permissions-Policy syntax on Cloudflare
Why it matters
Browsers ignore entries that do not follow the structured header syntax, so the features they were meant to switch off stay available. The usual cause is the old Feature-Policy syntax under the new header name.
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
- Edit the Response Header Transform Rule (Rules, Overview) that sets Permissions-Policy and correct the value; if the origin sets it, correct it there.
- Test the pages that use those features.
Related
Scan your domain to see whether this applies to you.