Most JS code assumes it's targeting either a browser or node.js. Nashorn is very barebones, and can't pass for either. trying to run core.async on Nashorn didn't work for me because it expects either Window.setTimeout (which browsers use) or whatever-node-js uses for timers. I expect a large percentage of the libraries you'd want to use will be similarly affected.
Most JS code assumes it's targeting either a browser or node.js. Nashorn is very barebones, and can't pass for either. trying to run core.async on Nashorn didn't work for me because it expects either Window.setTimeout (which browsers use) or whatever-node-js uses for timers. I expect a large percentage of the libraries you'd want to use will be similarly affected.