https://www.toptamilnews.com/sw.js

1
2// Service Worker
3
4const pwacache = "pwa-cache-v11.4"
5self.addEventListener('install', (e) => {
6  console.log('install Activated =====');
7
8  // create new cache
9  /*let cacheReady = caches.open(pwacache).then((cache) => {
10    return cache.add('/')
11  });*/
12
13  let cacheReady = caches.open(pwacache).then((cache) => {
14    cache.addAll([
15      '/static/ctn/commons/js/colombia_v11.js'      
16    ])
17  })
18
19  e.waitUntil(cacheReady);
20
21});
22
23self.addEventListener('activate', (e) => {
24  /*let cacheReady = caches.open(pwacache).then((cache) => {
25    cache.match('/').then((res) => {
26      return res.text().then(console.log)
27    })  });
28
29  e.waitUntil(cacheReady);
30*/
31  let cacheCleaned = caches.keys().then((keys) => {
32    keys.forEach((key) => {
33      if (key !== pwacache) return caches.delete(key);
34    });
35  });
36  e.waitUntil(cacheCleaned);
37});
38
39self.addEventListener('fetch', (e) => {
40  // serve from cache
41  if(!e.request.url.match(location.origin) || e.request.url.match('v5.htm') || e.request.url.match('feed.htm') || e.request.url.match('mnotify.htm') || e.request.url.match('notify.htm') || e.request.url.match('stats?')) return;
42
43  // cache with Network Fallback
44  let newRes =  caches.open(pwacache).then((cache) => {
45    if(!e.request.url.match('static/c1e')){
46         return fetch(e.request).then((fetchres)=>{
47              if(fetchres){
48                   // Cache Fetched Response
49               if(e.request.url.indexOf('v5.htm')== -1 && e.request.url.indexOf('feed.htm')== -1 ){
50                    cache.put(e.request, fetchres.clone())
51                }
52                return fetchres;
53              }
54              return cache.match(e.request).then((res)=>{
55                  // check cache response
56                  if(res){
57                    console.log(`Serving ${res.url} from cache`);
58                    return res;
59                  }
60              })
61            })
62      }
63	return cache.match(e.request).then((res)=>{
64      // check cache response
65      if(res){
66        console.log(`Serving ${res.url} from cache`);
67        return res;
68      }
69      // Fallback to Network
70      return fetch(e.request).then((fetchres)=>{
71        // Cache Fetched Response
72       if(e.request.url.indexOf('v5.htm')== -1 && e.request.url.indexOf('feed.htm')== -1 ){ 
73            cache.put(e.request, fetchres.clone())
74        }
75        return fetchres;
76      })
77    })
78  
79  })
80  e.respondWith(newRes); 
81})