sjoshua270
diff --git a/‎.idea/DM Communication.iml
+7 b/‎.idea/DM Communication.iml
+7
diff --git a/‎.idea/jsLibraryMappings.xml
+1-1 b/‎.idea/jsLibraryMappings.xml
+1-1
diff --git a/‎.idea/vcs.xml
+6 b/‎.idea/vcs.xml
+6
diff --git a/‎.idea/watcherTasks.xml
+1-1 b/‎.idea/watcherTasks.xml
+1-1
diff --git a/‎public/index.css ‎public/app.css b/‎public/index.css ‎public/app.css
diff --git a/‎public/index.js ‎public/app.js
+6 b/‎public/index.js ‎public/app.js
+6
diff --git a/‎public/index.html
+2-2 b/‎public/index.html
+2-2
diff --git a/‎public/service-worker.js
+44 b/‎public/service-worker.js
+44
@@ -1,3 +1,9 @@
+if ('serviceWorker' in navigator) {
+    navigator.serviceWorker
+        .register('./service-worker.js')
+        .then(function() { console.log('Service Worker Registered'); });
+}
+
 document.addEventListener('DOMContentLoaded', function () {
     try {
         let app = firebase.app();
 
@@ -20,7 +20,7 @@
     <link type="text/css" rel="stylesheet" href="https://cdn.firebase.com/libs/firebaseui/2.1.1/firebaseui.css"/>
 
     <!--Main sstylesheet-->
-    <link rel="stylesheet" href="index.css"/>
+    <link rel="stylesheet" href="app.css"/>
 </head>
 <body>
 <!-- Always shows a header, even in smaller screens. -->
@@ -130,6 +130,6 @@ <h3>Are you the DM?</h3>
 <!--Firebase UI-->
 <script src="https://cdn.firebase.com/libs/firebaseui/2.1.1/firebaseui.js"></script>
 <!--Main page logic-->
-<script src="index.js"></script>
+<script src="app.js"></script>
 </body>
 </html>
@@ -0,0 +1,44 @@
+const cacheName = 'weatherPWA-step-6-1';
+const filesToCache = [
+    "404.html",
+    "index.html",
+    "app.js",
+    "app.css",
+    "init.js",
+    "https://code.jquery.com/jquery-3.2.1.slim.min.js",
+    "http://fonts.googleapis.com/css?family=Roboto:300,400,500,700",
+    "https://fonts.googleapis.com/icon?family=Material+Icons",
+    "https://code.getmdl.io/1.3.0/material.indigo-pink.min.css",
+    "https://code.getmdl.io/1.3.0/material.min.js",
+    "https://cdn.firebase.com/libs/firebaseui/2.1.1/firebaseui.css",
+    "https://cdn.firebase.com/libs/firebaseui/2.1.1/firebaseui.js",
+    "https://www.gstatic.com/firebasejs/4.1.2/firebase.js",
+    "https://www.gstatic.com/firebasejs/4.1.1/firebase-app.js",
+    "https://www.gstatic.com/firebasejs/4.1.1/firebase-database.js",
+    "https://www.gstatic.com/firebasejs/4.1.1/firebase-auth.js",
+];
+
+self.addEventListener('install', function (e) {
+    console.log('[ServiceWorker] Install');
+    e.waitUntil(
+        caches.open(cacheName).then(function (cache) {
+            console.log('[ServiceWorker] Caching app shell');
+            return cache.addAll(filesToCache);
+        })
+    );
+});
+
+self.addEventListener('activate', function (e) {
+    console.log('[ServiceWorker] Activate');
+    e.waitUntil(
+        caches.keys().then(function (keyList) {
+            return Promise.all(keyList.map(function (key) {
+                if (key !== cacheName) {
+                    console.log('[ServiceWorker] Removing old cache', key);
+                    return caches.delete(key);
+                }
+            }));
+        })
+    );
+    return self.clients.claim();
+});