> Why can I not "Create an app loading screen" without service workers? Why can I not "Create an initial app UI to load instantly"? Seems these are trivially possible with regular Javascript, but maybe I'm misunderstanding?
If you're waiting on async requests than everything is fine without Service Workers, but if you're performing computation then the whole UI will be blocked.
If you're waiting on async requests than everything is fine without Service Workers, but if you're performing computation then the whole UI will be blocked.