End-to-end encryption using Insertable Streams

We have tried last night a latest commit 130a1d
eg. that includes draft support for E2EE handling through insertable streams.
We have used Chrome Canary 84+, enabled Experimental Web Platform features

We can confirm insertable stream is working through example
https://webrtc.github.io/samples/src/content/peerconnection/endtoend-encryption/

During the Jitsi conference call over Videobridge we found that we don’t have sound and video. Just blank black screens. We see our own video only.

I know that work is still in the progress. But should it work to some degree?

Thank you
Dimi