Index: /lib/filter_functions.inc.php
===================================================================
--- /lib/filter_functions.inc.php	(revision 7518)
+++ /lib/filter_functions.inc.php	(revision 7519)
@@ -524,5 +524,5 @@
 		        	if ($_SESSION['sanitization_err_fields'][$field_name] >= 1) unset($_SESSION['sanitization_err_fields'][$field_name]);
 
-		        	$sanitization_err_code .= "alert('$field_name'); document.getElementsByName('$field_name').forEach(el => { el.style.borderColor = '#D9534F'; });\n";
+		        	$sanitization_err_code .= "document.getElementsByName('$field_name').forEach(el => { el.style.borderColor = '#D9534F'; });\n";
 
 		        }