When I try Shift+k using fireplace from a cljs file, while connected to a nrepl-port of my server running using lein repl, I get an exception Exception not caught: Fireplace: class java.lang.ClassNotFoundException

I've used this hack to get fireplace working with cljs in the past successfully, https://gist.github.com/malyn/646e291d01101dcc8b48

However, with my latest project that doesn't seem to work, and I'm not sure that's the right way to even attempt it regardless.