visibilitychange event should fire as part of unload process and document.visibilityState should report 'hidden'.


Editor's draft

Status in Chromium


Enabled by default (tracking bug) in:

  • Chrome for desktop release 56
  • Chrome for Android release 56

Consensus & Standardization

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

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


Last updated on 2020-11-09