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Update sw.js

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This commit is contained in:
Harsh Khandeparkar
2019-03-27 19:08:06 +00:00
committed by GitHub
parent 1d9315d74a
commit e3dfd1b5e5
1 changed files with 15 additions and 9 deletions
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12
examples/lib/sw.js
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@@ -6,7 +6,8 @@ const meta = JSON.parse(request.responseText).metadata,
betaVer = meta.betaVersion; betaVer = meta.betaVersion;
const version = (window.location.indexOf('beta') == 0) ? betaVer : ver; const version = (window.location.indexOf('beta') == 0) ? betaVer : ver;
const staticCacheName = `image-sequencer-static-v${version}`; const staticCacheName = `image-sequencer-static-v${version}`,
is
const isVersionNewer = (version, old) => { const isVersionNewer = (version, old) => {
version = version.split('.'); version = version.split('.');
@@ -34,8 +35,9 @@ self.addEventListener('activate', function(e) {
caches.keys().then(function(cacheNames) { caches.keys().then(function(cacheNames) {
return Promise.all( return Promise.all(
cacheNames.filter(function(cacheName){ cacheNames.filter(function(cacheName){
cacheName != staticCacheName; return isVersionNewer(staticCacheName.slice(-5), cacheName.slice(-5));
}).map(function(cacheName){ }).map(function(cacheName){
return caches.delete(cacheName); return caches.delete(cacheName);
}) })
); );
@@ -45,14 +47,18 @@ self.addEventListener('activate', function(e) {
self.addEventListener('fetch', function(event) { self.addEventListener('fetch', function(event) {
event.respondWith( event.respondWith(
if (caches.keys().length < 1){
caches.open(staticCacheName).then(function(cache) { caches.open(staticCacheName).then(function(cache) {
return cache.match(event.request).then(function (response) { return cache.match(event.request).then(function (response) {
return response || fetch(event.request).then(function(response) { return response || fetch(event.request).then(function(response) {
if(event.request.method == "GET") if(event.request.method == "GET")
cache.put(event.request, response.clone()); cache.put(event.request, response.clone());
return response; return response;
}); });
}); });
}) });
}
else return false;
); );
}); });