HTMLVideoElement: disablePictureInPicture property
The HTMLVideoElement disablePictureInPicture property reflects the HTML attribute indicating whether the picture-in-picture feature is disabled for the current element.
This value only represents a request from the website to the user agent. User configuration may change the eventual behavior—for example, Firefox users can change the media.videocontrols.picture-in-picture.respect-disablePictureInPicture setting to ignore the request to disable PiP.
Value
A boolean value that is true if the picture-in-picture feature is disabled for this element. This means that the user agent should not suggest that feature to users, or request it automatically.