text: const CACHE = "v1";
  
  importScripts(
      "https://storage.googleapis.com/workbox-cdn/releases/5.0.0/workbox-sw.js"
  );
  
  self.addEventListener("message", (event) => {
      if (event.data && event.data.type === "SKIP_WAITING") {
          self.skipWaiting();
      }
  });
  
  workbox.routing.registerRoute(
      new RegExp("/*"),
      new workbox.strategies.StaleWhileRevalidate({
          cacheName: CACHE,
      })
  );