diff --git a/public/js/index.js b/public/js/index.js
index 10f5966..5274a69 100644
--- a/public/js/index.js
+++ b/public/js/index.js
@@ -145,9 +145,6 @@ Litedom({
 
         // set focus
         document.getElementById('calories').focus();
-    },
-    worker() {
-
     },
     created() {
         // start service worker