Safari fullscreen on secondary display while also on main screen?

Is there any way to tell safari to play a new window on a secondary display while at the same time still working on the main screen?

The idea is to let others watch netflix on the secondary screen, while I keep working with safari on the main screen.

I would be neat to CRTL-Click a window to view it on the other screen.

Right now, I have made a copy of Safari, and run the "Safari copy" on the secondary screen in full screen, while running Safari on the main screen.

Will it mess things up if two Safaris run at the same time on separate screens?

Regards