diff --git a/Resources/views/layout.html.twig b/Resources/views/layout.html.twig
index a5394b2..a33a4ab 100755
--- a/Resources/views/layout.html.twig
+++ b/Resources/views/layout.html.twig
@@ -396,7 +396,7 @@
                     {% else -%}
                     var endpoint = '{{ endpoint }}';
                     {% endif -%}
-                    if ($('#api_endpoint') && $('#api_endpoint').val() != '') {
+                    if ($('#api_endpoint') && typeof($('#api_endpoint').val()) != 'undefined') {
                         endpoint = $('#api_endpoint').val();
                     }