👀 Views: 41 💬 Answers: 1 📅 Created: 2025-06-13

jquery ajax service-worker pwa JavaScript

I'm trying to figure out I'm optimizing some code but I'm currently implementing a Progressive Web App (PWA) using jQuery for AJAX calls, but I'm encountering an issue where the responses aren't being processed as expected when a Service Worker is involved. My Service Worker is set up to cache API responses for offline access, but when I try to fetch data using jQuery's `.ajax()`, it seems to return stale or cached responses rather than fresh data. I have the following AJAX call in my app: ```javascript $.ajax({ url: 'https://api.example.com/data', method: 'GET', dataType: 'json', success: function(data) { console.log('Data received:', data); }, error: function(jqXHR, textStatus, errorThrown) { console.error('AJAX Error:', textStatus, errorThrown); } }); ``` The Service Worker script looks like this: ```javascript self.addEventListener('fetch', (event) => { event.respondWith( caches.open('api-cache').then((cache) => { return cache.match(event.request).then((response) => { if (response) { return response; } return fetch(event.request).then((networkResponse) => { cache.put(event.request, networkResponse.clone()); return networkResponse; }); }); }) ); }); ``` When I test this, I notice that data fetched after the initial load is not logged as expected, and the error callback is not triggered either. I also checked the Network tab in the browser's Developer Tools, and it shows that requests to `api.example.com/data` are being fulfilled from the cache instead of hitting the network. I've tried disabling the caching behavior in the Service Worker temporarily, and the AJAX calls work fine, fetching fresh data as intended. However, I would like to maintain the caching for offline capabilities. Is there a way to ensure that jQuery's `.ajax()` gets the latest data while still utilizing the Service Worker for caching? Any insights on how to manage cached responses effectively in this scenario would be greatly appreciated. I'm coming from a different tech stack and learning Javascript. What's the correct way to implement this? Any feedback is welcome!