Minimal React.js Single Page Application packaged for OpenFaaS with the dockerfile template and the watchdog in static mode. The client-side routing is done with React-Router.
The issue is that any page other than the homepage will return a 404 error when requested from the server (when refreshing the page).
A Single Page Application technically only have a single index.html, and should redirect every possible url pointed to the domain at this index.html located at the root.
This is usually done with a catch-all rule on an Express server or Nginx reverse proxy.
Note that the website is served at https://DOMAIN_NAME/function/react-spa by adding PUBLIC_URL=/function/react-spa in .env and
setting the basename property passed to the Router component.
Run OpenFaaS locally
$ kubectl port-forward svc/gateway -n openfaas 8080:8080
$ faas-cli up