Angular CLI won't serve Angular 2 applications from C9

nodejs
angular2

#1

No failure is evident, but when I go to the address linked below, there’s no page found.

As per other threads here dealing with the same issue, I’ve tried ng serve --host 0.0.0.0 --port 8080 and updating NPM. Updating NPM helped last week, but this week it doesn’t seem to work.


#2

…aaaand today it works all of a sudden. Same workspace, same settings.