I'm using Angular universal with Angular 9 and Angular Fire 6.
I managed to prerender my application with npm run prerender without any errors.
My routes get pre rendered and the index.html files looks fine.
Except the command itself, it never finishes.
The last lines i get:
...
Prerendering 4 route(s) to {{projekt URL}}\browser
CREATE {{projekt URL}}\browser\index.html (66857 bytes)
CREATE {{projekt URL}}\browser\home\index.html (66857 bytes)
CREATE {{projekt URL}}\browser\edit\index.html (66857 bytes)
CREATE {{projekt URL}}\browser\login\index.html (66857 bytes)