sw.js

// Service Work
var cacheName = 'v1.0';

var cacheAssets = [
    '/',
    '/index.html',
    '/sobre/index.html',
    '/links/index.html',
    '/notes/index.html',
    '/javascript/app.js',
    '/sw.js',
    '/css/main.css',
    '/fonts/CircularStd-Book.woff2'
]

// installation
self.addEventListener('install', e => {
      console.log('Service Worker: Installed');
      e.waitUntil(
            caches
              .open(cacheName)
              .then(cache => {
                console.log('Service Worker: Caching Files');
                cache.addAll(cacheAssets);
              })
              .then(() => self.skipWaiting())
          );

});    

// activation
self.addEventListener('activate', e => {
    console.log('Service Worker: Installed');
}); 

// fetch
self.addEventListener('fetch', e => {
      console.log('Service Worker: Fetching');
        e.respondWith(fetch(e.request).catch(() => caches.match(e.request)));
      
});