On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 75 on 2019-06-04 Note: Before Chrome 50/Opera 37, this property returned idle for an animation that had not yet started. Starting with Chrome 50/Opera 37, it shows paused.
In Chrome Android version 75 on 2019-06-04 Note: Before Chrome Android 50/Opera 37, this property returned idle for an animation that had not yet started. Starting with Chrome Android 50/Opera 37, it shows paused.
In Edge version 79 on 2020-01-15
In Firefox version 48 on 2016-08-02 Note: Before Firefox 59, this property returned pending for Animations with incomplete asynchronous operations but as of Firefox 59 this is indicated by the separate Animation.pending property. This reflects recent changes to the specification.
In Firefox for Android version 48 on 2016-08-02 Note: Before Firefox for Android 59, this property returned pending for Animations with incomplete asynchronous operations but as of Firefox for Android 59 this is indicated by the separate Animation.pending property. This reflects recent changes to the specification.
Not in Internet Explorer
In Quest Browser version 7.0 on undefined Note: Before Quest Browser 5.0/Opera 37, this property returned idle for an animation that had not yet started. Starting with Quest Browser 5.0/Opera 37, it shows paused.
In Opera version 62 on 2019-06-27 Note: Before Chrome 50/Opera 37, this property returned idle for an animation that had not yet started. Starting with Chrome 50/Opera 37, it shows paused.
In Opera Android version 54 on 2019-10-18 Note: Before Chrome 50/Opera 37, this property returned idle for an animation that had not yet started. Starting with Chrome 50/Opera 37, it shows paused.
In Safari version 13.1 on 2020-03-24
In Safari on iOS version 13.4 on 2020-03-24
In Samsung Internet version 11.0 on 2019-12-05 Note: Before Samsung Internet 5.0/Opera 37, this property returned idle for an animation that had not yet started. Starting with Samsung Internet 5.0/Opera 37, it shows paused.
In WebView Android version 75 on 2019-06-04 Note: Before WebView Android 50/Opera 37, this property returned idle for an animation that had not yet started. Starting with WebView Android 50/Opera 37, it shows paused.
In WebView on iOS version 13.4 on 2020-03-24