assistant: To make your PWA load the cached version while offline but load the most up-to-date data when a network connection is available, you can implement a strategy called "Cache, Falling Back to Network" in your service worker. This strategy involves first checking the cache for a requested resource, and if it is not found in the cache, then fetching it from the network.
\
To implement this strategy, you can use the "fetch" event in your service worker to intercept network requests and respond to them using the cache. Here's an example implementation:
``` 
self.addEventListener('fetch', function(event) {
  event.respondWith(
    caches.match(event.request).then(function(response) {
      if (response) {
        // Found in cache, return cached response
        return response;
      } else {
        // Not found in cache, fetch from network
        return fetch(event.request).then(function(response) {
          // Add response to cache
          return caches.open('my-cache').then(function(cache) {
            cache.put(event.request, response.clone());
            return response;
          });
        });
      }
    })
  );
});
``` 
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In this implementation, the service worker first checks if the requested resource is in the cache using caches.match(). If it is found in the cache, it returns the cached response. If it is not found in the cache, it fetches the resource from the network using fetch(), and adds the response to the cache using caches.open(). The response is then returned to the requesting client.
\
By default, this strategy will only use the cached version of the resource if the device is offline. However, to make it work conditionally, you can add additional logic to check if the device is online before fetching from the network. You can do this by adding a check for navigator.onLine or by listening for the "online" and "offline" events.

assistant: Yes, it is possible to configure a Progressive Web App (PWA) with a Service Worker to not display the cached version of the page when the device is online. You can achieve this by adding some logic to the Service Worker that will check if the user is online or offline and respond accordingly.

Here's an example of how to do this:

1. In your Service Worker script, add an event listener for the fetch event.

self.addEventListener('fetch', function(event) {
  // your code here
});

2. Inside the fetch event listener, you can add logic to check if the user is online or offline. You can use the navigator.onLine property to check if the user is online.

self.addEventListener('fetch', function(event) {
  if (navigator.onLine) {
    // user is online, don't use cache
    return fetch(event.request);
  } else {
    // user is offline, use cache
    return caches.match(event.request);
  }
});

If the user is online, the Service Worker will bypass the cache and fetch the latest version of the page from the server. If the user is offline, the Service Worker will use the cached version of the page.

This approach ensures that the user always sees the latest version of the page when they are online, while still providing a fallback when the user is offline. Keep in mind that this approach may impact performance, especially if the page is large or contains a lot of dynamic content that cannot be cached.

prompter: Will that event listener only apply to fetch requests made in the ServiceWorker scope, or will all fetch requests be affected?