add offline support

1 files changed, 31 insertions, 0 deletions

diff --git a/public/sw.js b/public/sw.js
new file mode 100644
index 0000000..1168c93
--- /dev/null
+++ b/public/sw.js
@@ -0,0 +1,31 @@
+/* global importScripts toolbox self */
+
+// random string: CHfHo0GjMJAoOC
+
+(global => {
+  'use strict'
+
+  // Load the sw-toolbox library.
+  importScripts('/components/sw-toolbox/sw-toolbox.js')
+
+  // Ensure that our service worker takes control of the page as soon as possible.
+  global.addEventListener('install', event => event.waitUntil(global.skipWaiting()))
+  global.addEventListener('activate', event => event.waitUntil(global.clients.claim()))
+
+  toolbox.precache([
+    '/',
+    '/hello',
+    '/untisinfo.css',
+    '/javascripts/bundle.js',
+    '/stylesheets/style.css',
+    '/stylesheets/hello.css'
+  ])
+
+  toolbox.router.get('/', toolbox.cacheFirst)
+  toolbox.router.get('/hello', toolbox.cacheFirst)
+
+  toolbox.router.get('/javascripts/bundle.js', toolbox.cacheFirst)
+  toolbox.router.get('/stylesheets/*', toolbox.cacheFirst)
+  toolbox.router.get('/untisinfo.css', toolbox.cacheFirst)
+  toolbox.router.get('/meetingpointProxy/*', toolbox.networkFirst)
+})(self)