diff --git a/var/www/static/js/indexjavascript.js b/var/www/static/js/indexjavascript.js
index 7fd463f7..981bb130 100644
--- a/var/www/static/js/indexjavascript.js
+++ b/var/www/static/js/indexjavascript.js
@@ -219,6 +219,11 @@ function create_queue_table() {
 }
 
 $(document).ready(function () {
+    if (typeof glob_tabvar == "undefined")
+        location.reload();
+    if (typeof glob_tabvar.row1 == "undefined")
+        location.reload();
+
     var data = [];
     var data2 = [];
     var tmp_tab = [];
diff --git a/var/www/templates/index.html b/var/www/templates/index.html
index 82448ab7..d12adfa4 100644
--- a/var/www/templates/index.html
+++ b/var/www/templates/index.html
@@ -18,6 +18,7 @@
   <script src="{{ url_for('static', filename='js/jquery.flot.js') }}"></script>
   <script>
       window.default_minute = {{ default_minute }};
+      window.glob_tabvar = []; // Avoid undefined
       function update_values() {
           $SCRIPT_ROOT = {{ request.script_root|tojson|safe }};
           $.getJSON($SCRIPT_ROOT+"/_stuff",