ReactPWA/Lobby

Hello everyone!
I am trying to set up PWA for the first time using the workbox.

However, I am experiencing some issues and will be really thankful if someone has an answer :)

This is my service worker file, caching is working and it's all good except the BroadcastUpdatePlugin, which doesn't broadcast anything (or I am missing something)

import { precacheAndRoute, createHandlerBoundToURL } from 'workbox-precaching';
import { NavigationRoute, registerRoute, setCatchHandler } from 'workbox-routing';
import { StaleWhileRevalidate } from 'workbox-strategies';
import { BroadcastUpdatePlugin } from 'workbox-broadcast-update';

console.log('Service worker here!');

precacheAndRoute(self.__WB_MANIFEST);

const handler = createHandlerBoundToURL('/index.html');
const navigationRoute = new NavigationRoute(handler);

registerRoute(
  navigationRoute,
  new StaleWhileRevalidate({
    plugins: [
      new BroadcastUpdatePlugin()
    ],
  })
);

I am installing the service worker in my App.js by calling this function in the componentDidMount:

  serviceWorkerListener = () => {
    if ('serviceWorker' in navigator) {
      const wb = new Workbox(`${window.location.origin}/sw.js`);

      wb.addEventListener('installed', event => {
        console.log(event);
        if (event.isUpdate) {
          console.log(event.isUpdate);
        }
      });

      wb.addEventListener('message', event => {
        console.log('message: ', event);
      });

      wb.register();
    }
  }

The installed listener is registering when something from the cache was updated on the server, however, the message listener doesn't receive anything. The workbox docs don't help at all, neither I can find something more detailed on the BroadcastUpdatePlugin on the web.