The webxdc update channel sends the whole document state. The realtime
channel sends incremental updates as well as awareness information.
If a peer sends out an update over realtime and disconnects before its
webxdc update is sent, that edit exists only in peers that received the
realtime update. If another peer that did receive the realtime update makes
an edit that causes it to send its document to the webxdc update log, other
peers can catch up.
A protocol with a realtime accelerator channel.
The webxdc update channel sends the whole document state. The realtime channel sends incremental updates as well as awareness information.
If a peer sends out an update over realtime and disconnects before its webxdc update is sent, that edit exists only in peers that received the realtime update. If another peer that did receive the realtime update makes an edit that causes it to send its document to the webxdc update log, other peers can catch up.