diff --git a/sw.js b/sw.js
index 9060981..69655a3 100644
--- a/sw.js
+++ b/sw.js
@@ -55,6 +55,7 @@ self.addEventListener('fetch', event => {
   if (resp) {
     event.respondWith(resp)
   }
+  return false
 })
 
 self.addEventListener('activate', event => {