diff --git a/web/index.html b/web/index.html
index 1ff59d7..5308a62 100644
--- a/web/index.html
+++ b/web/index.html
@@ -60,11 +60,20 @@
     <div id="root"></div>
     <script type="module" src="/src/main.tsx"></script>
     <script>
-      // Register service worker
+      // Register service worker (only for web, avoid in Tauri to prevent 404 cache bugs)
       if ('serviceWorker' in navigator) {
-        window.addEventListener('load', () => {
-          navigator.serviceWorker.register('/sw.js').catch(() => {});
-        });
+        if (!('__TAURI_INTERNALS__' in window) && !('__TAURI__' in window)) {
+          window.addEventListener('load', () => {
+            navigator.serviceWorker.register('/sw.js').catch(() => {});
+          });
+        } else {
+          // In Tauri, aggressively unregister any old service workers that might be causing 404s
+          navigator.serviceWorker.getRegistrations().then((registrations) => {
+            for (let registration of registrations) {
+              registration.unregister();
+            }
+          });
+        }
       }
     </script>
   </body>