Data Channels are currently under review. The current priority level is low:
“We are still evaluating this technology. There may be significant spec stabilization, foundational work, or additional community input required before we can begin development.”
You can can follow progress at https://developer.microsoft.com/en-us/microsoft-edge/platform/status/rtcdatachannelsFeross Aboukhadijeh commented
Data channels *in workers* are under review? Or data channels, period?
The status page shows that the WebRTC v1.0 API is "In Development", but you realize that Data Channels are part of the WebRTC 1.0 API, right?