Property indicating the time at which, if any, the subscription won't be valid anymore. The user agent will attempt to fire a `pushsubscriptionchange` event with a new subscription before this happens. Chrome will always return NULL, until we support subscription refreshes.



Editor's draft

Status in Chromium


Enabled by default (tracking bug) in:

  • Chrome for desktop release 60
  • Chrome for Android release 60

Consensus & Standardization

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


Search tags

push, api, notifications,

Last updated on 2020-11-09