[w3c/ServiceWorker] Assets caching in browsers behaves differently between localhost and deployment (Issue #1689)

Hello friends,
I'm facing an issue with assets caching in browsers. When my project runs on the localhost (Ocak server), the assets are being cached in the browser as expected. However, when I deploy the project, the assets are not getting stored in the static cache as intended.

Code:

```
const staticCacheName = "site-static-v2";
const dynamicCacheName = "site-dynamic-v1";
const assets = [
  "/",
  "index.html",
  "js/app.js",
  "js/ui.js",
  "js/db.js",
  "js/materialize.min.js",
  "css/styles.css",
  "css/materialize.min.css",
  "img/dish.png",
  "pages/fallback.html",
  "pages/about.html",
  "js/class/IndexedDBHandler.js",
  "https://fonts.googleapis.com/icon?family=Material+Icons",
  "https://fonts.gstatic.com/s/materialicons/v47/flUhRq6tzZclQEJ-Vdg-IuiaDsNcIhQ8tQ.woff2",
];

// install event
self.addEventListener("install", (evt) => {
  //console.log('service worker installed');
  evt.waitUntil(
    caches
      .open(staticCacheName)
      .then((cache) => {
        console.log("caching shell assets");
        cache.addAll(assets).catch((err) => console.log(err));
      })
      .catch((err) => console.log(err))
  );
});

// activate event
self.addEventListener("activate", (evt) => {
  //console.log('service worker activated');
  evt.waitUntil(
    caches.keys().then((keys) => {
      //console.log(keys);
      return Promise.all(
        keys
          .filter((key) => key !== staticCacheName && key !== dynamicCacheName)
          .map((key) => caches.delete(key))
      );
    })
  );
});

```


Images: 

![image_2023-07-26_17-19-14](https://github.com/w3c/ServiceWorker/assets/95970613/bdcc5f01-2c56-4e5e-aa79-9111c7009fa2)

![image_2023-07-26_17-19-38](https://github.com/w3c/ServiceWorker/assets/95970613/0ab3c96d-190a-4230-9e8b-0e58dd7dc771)




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