The read-only pictureInPictureEnabled property of the Document interface indicates whether or not picture-in-picture mode is available.

Picture-in-Picture mode is available by default unless specified otherwise by a Permissions-Policy.

Although this property is read-only, it will not throw if it is modified (even in strict mode); the setter is a no-operation and will be ignored.

A boolean value, which is true if a video can enter picture-in-picture and be displayed in a floating window by calling HTMLVideoElement.requestPictureInPicture(). If picture-in-picture mode isn't available, this value is false.

In this example, before attempting to enter picture-in-picture mode for a <video> element the value of pictureInPictureEnabled is checked, to avoid making the call if the feature is not available.

function requestPictureInPicture() {
  if (document.pictureInPictureEnabled) {
    videoElement.requestPictureInPicture();
  } else {
    console.log("Your browser cannot use picture-in-picture right now");
  }
}

• HTMLVideoElement.requestPictureInPicture()
• HTMLVideoElement.disablePictureInPicture
• Document.exitPictureInPicture()
• Document.pictureInPictureElement
• :picture-in-picture