Static Nuxt app with PWA?

I've seen that I can build nuxt apps in SPA/Universal mode with PWA features. Amazingly I can also generate static pages using 'nuxt generate' command.

However, I don't find any option to generate static pages with PWA as a plus. I want to know if it's possible. If yes, then how?

Edit: I figured out that PWA wasn't working because of absence of SSL. Otherwise, it's fine with any mode.