The HTMLVideoElement autoPictureInPicture property reflects the HTML attribute indicating whether the video should enter or leave picture-in-picture mode automatically. 
 The HTMLVideoElement autoPictureInPicture property reflects the HTML attribute indicating whether the video should enter or leave picture-in-picture mode automatically. 
 A boolean value that is true if the video should enter or leave picture-in-picture mode automatically when changing tab and/or application. 
| Specification | 
|---|
| Picture-in-Picture  # auto-pip  | 
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
autoPictureInPicture | 
No  | 
No  | 
No  | 
No  | 
No  | 
13.1  | 
No  | 
No  | 
No  | 
No  | 
13.4  | 
No  | 
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    https://developer.mozilla.org/en-US/docs/Web/API/HTMLVideoElement/autoPictureInPicture