Reactive.jl which Escher depends on for interaction was entirely inspired by Elm! I think the main difference between Elm is that Elm is currently a client-only compile-to-JS language. Escher, otoh runs on the server and compiles to Virtual DOM instead of JS. The Virtual DOM can include custom HTML elements, I use Polymer extensively, and have a few elements of my own for doing things like event capture, websocket communication, sampling events etc.
Although https://hackertimes.com/item?id=9650438 had significant attention recently, this post seems different enough that I think we can not count it as a dupe.
They don't appear to be related. The previous discussion was about replicating an Escher style drawing in Julia. This is about a web framework for Julia that just happens to be named Escher :)
