Instead of dynamically resolving arbitrary functions, if the set of functions that you'd want to call in a web worker is known then just create a registry of them.

Yes, that was my first idea. But it felt nicer to send the symbol name. But i guess it won’t survive advanced compilation anyway?

You can still send the symbol name, and make that registry index functions by the symbols. :) If there are a lot of such functions, you can replace defn with your own macro that automatically populate the registry. > But i guess it won’t survive advanced compilation anyway? That's my guess but I haven't checked. I.e. the symbols themselves will definitely survive but resolve might not work - because the original namespace and function name were renamed.

> You can still send the symbol name, and make that registry index functions by the symbols. :) If there are a lot of such functions, you can replace defn with your own macro that automatically populate the registry. Oh yeah, I didn't think of that. Great solution, thanks!