diff --git a/main.js b/main.js
index d1620297..d565e4da 100644
--- a/main.js
+++ b/main.js
@@ -11,7 +11,7 @@ const WARN = true;
 const ERROR = true;
 
 // register service worker responsible for caching
-if (PRODUCTION && "serviceWorker" in navigator) {
+if ("serviceWorker" in navigator) {
   window.addEventListener("load", () => {
     navigator.serviceWorker.register("./sw.js").catch(err => {
       console.error("ServiceWorker registration failed: ", err);