blob: d42b04c1029a2ed9e4daa45493409ece010f6267 (
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self.addEventListener("install", function (event) {
self.skipWaiting();
});
self.addEventListener("fetch", (event) => {
const cacheName = self.location.pathname
const request = event.request;
if (request.method !== "GET") {
return;
}
/**
* @param {Response} response
* @returns {Promise<Response>}
*/
function saveToCache(response) {
if (cacheable(response)) {
return caches
.open(cacheName)
.then((cache) => cache.put(request, response.clone()))
.then(() => response);
} else {
return response;
}
}
/**
* @param {Error} error
*/
function serveFromCache(error) {
return caches.open(cacheName).then((cache) => cache.match(request.url));
}
/**
* @param {Response} response
* @returns {Boolean}
*/
function cacheable(response) {
return response.type === "basic" && response.ok && !response.headers.has("Content-Disposition")
}
event.respondWith(fetch(request).then(saveToCache).catch(serveFromCache));
});
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