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feat(pwa): revalidate current cache #23

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merged 1 commit into from
Mar 28, 2024
Merged

feat(pwa): revalidate current cache #23

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51 changes: 14 additions & 37 deletions static/sw.js
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Original file line number Diff line number Diff line change
Expand Up @@ -12,45 +12,22 @@ oninstall = (event) => {

onfetch = (event) => {
console.log("Service worker fetching", event.request.url);
event.respondWith(
caches.open(cacheName).then((cache) => {
return cache
.match(event.request)
.then((response) => {
if (response) {
console.log("Service worker found response in cache:", response);
return response;
}

console.log(
"No response for %s found in service worker cache. Fetching " +
"from network",
event.request.url,
);

return fetch(event.request.clone()).then((response) => {
console.log(
"Service worker got response for %s from network: %O",
event.request.url,
response,
);
event.respondWith(caches.open(cacheName).then((cache) => {
return cache.match(event.request).then((cachedResponse) => {
const fetchedResponse = fetch(event.request).then((networkResponse) => {
if (networkResponse.status < 400) {
console.log("Caching the response to", event.request.url);
cache.put(event.request, networkResponse.clone());
} else {
console.log("Service worker not caching the response to", event.request.url);
}

if (response.status < 400) {
console.log("Caching the response to", event.request.url);
cache.put(event.request, response.clone());
} else {
console.log("Service worker not caching the response to", event.request.url);
}
return networkResponse;
}).catch(() => caches.match("/offline/"));

return response;
}).catch(() => caches.match("/offline/"));
})
.catch((error) => {
console.error("Error in service worker fetch handler:", error);
throw error;
});
}),
);
return cachedResponse || fetchedResponse;
});
}));
};

self.onactivate = (event) => {
Expand Down