Update templates/index.html

templates/index.html

@@ -168,7 +168,8 @@
         // Loader functionality
         document.getElementById('fileUploadForm').onsubmit = function () {
             document.getElementById('loader').style.display = 'block';
-            document.getElementById('tablinks').style.display =
+            document.getElementById('tablinks').disabled = true;
+            document.getElementById('tablinks active').disabled = true;
         };
 
         // Flash message auto-hide