Fix the deployment space problem

ui/index.html

@@ -308,7 +308,7 @@
     </div>
 
     <script>
-        const API_URL = 'http://localhost:8000';
+        const API_URL = '';
         const dropZone = document.getElementById('dropZone');
         const fileInput = document.getElementById('fileInput');
         const loading = document.getElementById('loading');