-

frontend/src/core/components/viewer/BookmarkSidebar.tsx

@@ -250,7 +250,7 @@ export const BookmarkSidebar = ({ visible, thumbnailVisible, documentCacheKey, p
   const toggleNode = (nodeId: string) => {
     setExpanded(prev => ({
       ...prev,
-      [nodeId]: prev[nodeId] === undefined ? false : !prev[nodeId],
+      [nodeId]: !(prev[nodeId] ?? true),
     }));
   };
 

frontend/vite.config.ts

@@ -26,7 +26,7 @@ export default defineConfig(({ mode }) => {
       // make sure this port matches the devUrl port in tauri.conf.json file
       port: 5173,
       // Tauri expects a fixed port, fail if that port is not available
-      strictPort: false,
+      strictPort: true,
       watch: {
         // tell vite to ignore watching `src-tauri`
         ignored: ['**/src-tauri/**'],