Freeze task queues in background

All freezable task queues (beyond timers and loading) in blink scheduler will be paused when a renderer has frozen. Heuristics are used for when a renderer is frozen. These may include the use of media, webrtc, push notifications.

This is already shipped on Android (see



Editor's draft

Status in Chromium


Behind a flag (tracking bug) in:

  • Chrome for desktop release 71
  • Chrome for Android release 71
  • Android WebView release 71

Consensus & Standardization

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

  • No public signals
  • No public signals
  • No public signals
  • No signals


Last updated on 2019-05-29