User agent client hints
Limited availability
The Sec-CH-UA HTTP request header and the navigator.userAgentData API expose browser and platform information used to vary responses and application logic. User agent client hints are similar to user agent strings but more privacy-preserving and safer to parse.
Learning resources on MDN
Browser support
- Chrome 98 Released on 2022-02-01
- Chrome Android 98 Released on 2022-02-01
- Edge 98 Released on 2022-02-03
- Firefox ❌ See bugzil.la/935216 Vendor position : neutral
- Firefox for Android ❌ See bugzil.la/935216 Vendor position : neutral
- Safari ❌ Vendor position : blocked (concerns: interoperability, privacy)
- Safari on iOS ❌ Vendor position : blocked (concerns: interoperability, privacy)