Added Service Worker to Cache Assets for Offline

Added a service worker script to cache assets on local storage. In testing on desktop it worked. Need to test further on mobile.

.gitignore

@@ -0,0 +1,306 @@
+
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images/45lbs-Plate.svg

@@ -1,18 +1 @@
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-<svg width="8px" height="72px" viewBox="0 0 8 72" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
-    <!-- Generator: Sketch 43.1 (39012) - http://www.bohemiancoding.com/sketch -->
-    <title>45lbs-Plate</title>
-    <desc>Created with Sketch.</desc>
-    <defs></defs>
-    <g id="Page-1" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
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-                    <path d="M1.42773456,17.2177734 C1.48632861,17.719078 1.71907367,18.0657542 2.12597675,18.2578125 C2.33431112,18.3554692 2.57519413,18.4042969 2.848633,18.4042969 C3.36946894,18.4042969 3.75520727,18.2382829 4.00585956,17.90625 C4.25651186,17.5742171 4.38183612,17.2063822 4.38183612,16.8027344 C4.38183612,16.3144507 4.23291183,15.9368503 3.93505878,15.6699219 C3.63720573,15.4029935 3.27995019,15.2695312 2.86328144,15.2695312 C2.56054555,15.2695312 2.30094528,15.3281244 2.08447284,15.4453125 C1.86800041,15.5625006 1.68326918,15.7252594 1.53027362,15.9335938 L0.768554875,15.8896484 L1.30078144,12.125 L4.93359394,12.125 L4.93359394,12.9746094 L1.95996112,12.9746094 L1.66210956,14.9179688 C1.82487079,14.7942702 1.97949164,14.7014977 2.12597675,14.6396484 C2.38639472,14.532226 2.68749848,14.4785156 3.02929706,14.4785156 C3.67057631,14.4785156 4.21419067,14.6852193 4.66015644,15.0986328 C5.10612221,15.5120463 5.32910175,16.0361296 5.32910175,16.6708984 C5.32910175,17.331709 5.12483947,17.9143855 4.71630878,18.4189453 C4.30777809,18.9235051 3.65592914,19.1757812 2.76074237,19.1757812 C2.19107807,19.1757812 1.68733962,19.0154638 1.24951191,18.6948242 C0.811684196,18.3741846 0.566732219,17.8818393 0.514648625,17.2177734 L1.42773456,17.2177734 Z" id="5"></path>
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-    </g>
-</svg>

index.html

@@ -186,7 +186,7 @@
         </div>
 
         <!-- Checks is there is a service worker and adds or updates -->
-        <!-- <script>
+        <script>
             if ('serviceWorker' in navigator) {
               window.addEventListener('load', () => {
                 navigator.serviceWorker.register('sw.js')
@@ -198,7 +198,7 @@
                 });
               });
             }
-        </script> -->
+        </script>
         <!-- <script src="js/vendor/modernizr-3.5.0.min.js"></script> -->
         <script>window.jQuery || document.write('<script src="js/vendor/jquery-3.2.1.min.js"><\/script>')</script>
 

sw.js

@@ -1,10 +1,17 @@
 const filesToCache = [
   '/',
-  'style/main.css',
+  'css/appstyling-v2.css',
-  'images/still_life_medium.jpg',
+  'css/main.css',
+  'js/Weight Calculation Script-Edited-Jquery-V4.js',
+  'images/45lbs-Plate.svg',
+  'images/35lbs-Plate.svg',
+  'images/25lbs-Plate.svg',
+  'images/10lbs-Plate.svg',
+  'images/5lbs-Plate.svg',
+  'images/2halflbs-Plate.svg',
+  'images/favicon-16x16.png',
+  'images/favicon-32x32.png',
   'index.html',
-  'pages/offline.html',
-  'pages/404.html'
 ];
 
 const staticCacheName = 'pages-cache-v1';