The applicationServerKey option is used by the user agent when establishing a push subscription with a push service. This is the key that the application server will use to authenticate itself when sending push messages to this push subscription. Currently, applicationServerKey only supports BufferSource in Chrome. After this change, it can also accept a base64url encoded value.



Working draft or equivalent

Status in Chromium


Enabled by default (tracking bug) in:

  • Chrome for desktop release 76
  • Chrome for Android release 76

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • Shipped/Shipping
  • No signal
  • No signal
  • Positive


Last updated on 2020-11-09