Desktop sharing video doesn't shown when camera is off

Same issue when client connected to room with switched off camera - I can hear him but nowhere shown that users is online

Without an active camera, Chrome cannot negotiate a video stream with jitsi videobridge. Without a video stream, you can’t see anyone else’s video

You can force it to use screen capture instead of a webcam with the screen=true parameter

https://your_server:7443/jitsi/apps/ofmeet/?r=xxxxx&screen=true

or

https://your_server:7443/jitsi/apps/ofmeet/?screen=true

Is this behavior depends on ofmeet logic or it is web-rtc restriction?