I'm using sketchfab on the latest version of firefox nightly and HTC Vive. VR works fine but once it connects to sketchfab it "erases" the VR view on the computer monitor. While VR user sees everything normally I see grey/white checker pattern on my screen. I wonder if there is a chance to view VR simultaneously - I would like to see what player sees on my screen (even if it means double view). Help?