1 files changed, 1 insertions, 0 deletions
diff --git a/ui/chart4.php b/ui/chart4.php
index 3c4126d029f..3812369445c 100644
--- a/ui/chart4.php
+++ b/ui/chart4.php
@@ -32,6 +32,7 @@ $fields = [
 	'triggerid' => [T_ZBX_INT, O_MAND, P_SYS, DB_ID, null]
 ];
 if (!check_fields($fields)) {
+	session_write_close();
 	exit();
 }