How we built it

Web Animations JavaScript API [level 1 interop part 1]

A unified model for supporting animation and synchronization on the Web platform. This feature covers bug and interop fixes to bring Chrome in line with the spec: Cancel events;; pause() moves from idle to the paused state; deprecate dashed-names as keys in keyframes.


Builds on



Editor's draft

Status in Chromium

Enabled by default (launch bug) in:

  • Chrome for desktop release 50
  • Chrome for Android release 50
  • Android WebView release 50
  • Opera release 37
  • Opera for Android release 37

Consensus & Standardization


Last updated on 2016-09-09