port latest pwa work from zap

1 files changed, 9 insertions, 0 deletions

diff --git a/view/js/main.js b/view/js/main.js
index 68f3415ee..d121913ea 100644
--- a/view/js/main.js
+++ b/view/js/main.js
@@ -34,6 +34,7 @@ if(localStorage.getItem('uid') !== localUser.toString()) {
 	sessionStorage.clear();
 	localStorage.setItem('uid', localUser.toString());
 }
+
 window.onstorage = function(e) {
 	if(e.key === 'uid' && parseInt(e.newValue) !== localUser) {
 		if(window_needs_alert) {
@@ -45,6 +46,14 @@ window.onstorage = function(e) {
 	}
 }
 
+if ('serviceWorker' in navigator) {
+	navigator.serviceWorker.register('/ServiceWorker.js', { scope: '/' }).then(function(registration) {
+		console.log('Service worker registered. scope is', registration.scope);
+	}).catch(function(error) {
+		console.log('Service worker registration failed because ' + error);
+	});
+}
+
 $.ajaxSetup({cache: false});
 
 $(document).ready(function() {