🌐 Reduce Accept Language Origin Trial

This demo demonstrates the Accept-Language request header and JavaScript getter containing the reduced string in the presence of a valid Reduce Accept Language Origin Trial token for all subsequent requests to the site.

[Request] Request Accept-Language:

Accept-Language: en-US,en;q=0.5

[Response] Server response:



    

[For comparison] Subsequent resource request Accept-Language:

[…]

[For comparison] Subsequent iframe request Accept-Language:

[JavaScript] navigator.languages

[…]

Server supports languages:

Available languages

Server opt-in origin trial:

What is Reduce Accept Language Origin Trial?
  • Reduce Accept-Language Origin Trial: Reduce Accept Language is an effort within Chromium to minimize passive fingerprinting by reducing the entropy in the Accept-Language request header and the Navigator JavaScript APIs `navigator.languages`.
Available Origin Trials

Change User's Accept-Language: chrome://settings/language