*

1 files changed, 45 insertions, 0 deletions

diff --git a/js/pico-cam/service-worker.js b/js/pico-cam/service-worker.js
new file mode 100644
index 0000000..75027ed
--- /dev/null
+++ b/js/pico-cam/service-worker.js
@@ -0,0 +1,45 @@
+var CACHE_NAME = 'pico-cam-v1';
+var urlsToCache = [
+  '/',
+  '/index.html',
+  '/video.js'
+];
+
+self.addEventListener('install', function(event) {
+    event.waitUntil(
+        caches.open(CACHE_NAME)
+            .then(function(cache) {
+                console.log('Opened cache');
+                return cache.addAll(urlsToCache);
+            })
+    );
+});
+
+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);
+            }
+        )
+    );
+});
+
+self.addEventListener('activate', function(event) {
+    var cacheWhitelist = ['pico-cam-v1'];
+    event.waitUntil(
+        caches.keys().then(function(cacheNames) {
+            return Promise.all(
+                cacheNames.map(function(cacheName) {
+                    if (cacheWhitelist.indexOf(cacheName) === -1) {
+                        return caches.delete(cacheName);
+                    }
+                })
+            );
+        })
+    );
+});
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