allow origin to open PiP window from inactive tab (with previous explicit consent by the user)

[egm0121]

Hello,

For some use cases related to Video conferencing (one of the cited use cases for this new feature) it would be great if the PictureInPicture could be triggered programmatically. eg. when receiving an incoming video call in a web-based videoconference solution. or showing call controls for an inbound call that is automatically accepted (call center agent)

Popups created programmatically with windows.open are blocked by default but a notification is shown to let the user allow popups if needed.

Could PiP behave in the same way? this would enable use cases that are not currently possible on web apps but are used in desktop applications.