Was wondering if there are any plans for supporting IE Edge and Safari browsers.
IE is not supported. Edge and Safari are supported, Safari is still audio only. There are bugs around those implementations and we will be working in the following months of fixing some of them.
By the way Edge will be be based on Chromium in a near futur : https://github.com/MicrosoftEdge/MSEdge/blob/master/README.md.
And all Microsoft WebRTC work will be merged to werbtc.org code (https://www.youtube.com/watch?v=8sRluA_hrtc&feature=youtu.be&t=131).