diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 94a5178..fb34a16 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -26,4 +26,4 @@ jobs:
         run: npm run check
 
       - name: Build
-        run: npm run build
+        run: npm run build:ci
diff --git a/package.json b/package.json
index 105d9ce..88ce108 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,8 @@
   "type": "module",
   "scripts": {
     "dev": "vite",
-    "build": "vite build && node scripts/workbox-inject.js",
+    "build": "vite build && cp isle.js isle.wasm dist/ && node scripts/workbox-inject.js",
+    "build:ci": "vite build && node scripts/workbox-inject.js",
     "check": "svelte-check --fail-on-warnings",
     "preview": "vite preview"
   },
diff --git a/src/core/service-worker.js b/src/core/service-worker.js
index 295026e..a2a5f0a 100644
--- a/src/core/service-worker.js
+++ b/src/core/service-worker.js
@@ -4,7 +4,7 @@ import { showUpdatePopup, installState, swRegistration } from '../stores.js';
 let downloaderWorker = null;
 
 export async function registerServiceWorker() {
-    if (!('serviceWorker' in navigator)) {
+    if (import.meta.env.DEV || !('serviceWorker' in navigator)) {
         return null;
     }