sw

2019-04-08 13:55:23 +10:00 · 2019-04-08 13:55:23 +10:00 · 2f8ff69aee
commit 2f8ff69aee
parent 29622d3c0c
2 changed files with 22 additions and 0 deletions
--- a/client/index.html
+++ b/client/index.html
@ -17,5 +17,14 @@
  </head>
  <body>
  </body>
+  <script>
+    // Check that service workers are registered
+    if ('serviceWorker' in navigator) {
+      // Use the window load event to keep the page load performant
+      window.addEventListener('load', () => {
+        navigator.serviceWorker.register('./service.worker.js');
+      });
+    }
+  </script>
  <script src="./index.js"></script>
 </html>
--- a/client/service.worker.js
+++ b/client/service.worker.js
@ -0,0 +1,13 @@
+self.addEventListener('fetch', function(event) {
+  event.respondWith(
+    caches.match(event.request)
+      .then(function(response) {
+        // Cache hit - return response
+        if (response) {
+          return response;
+        }
+        return fetch(event.request);
+      }
+    )
+  );
+});