hongnk

Now I understand that the server side only forward models to listeners with known IDs. Perhaps new IDs need some sort of reference to be able to find listeners it...

Yes I thiink that works. The trick is to create a collection of Syncable.Ref, then all objects referenced in that collection will be replicated.

I notice in iOS 12.2 when select "request desktop site" this will fail, especially the drawing example is almost unusable. I tried IOS 13 beta which default to "desktop" version...