--- a/wp/wp-content/plugins/option-tree/includes/ot-functions-admin.php	Tue Jun 09 11:14:17 2015 +0000
+++ b/wp/wp-content/plugins/option-tree/includes/ot-functions-admin.php	Mon Oct 14 17:39:30 2019 +0200
@@ -843,6 +843,7 @@
     /* create localized JS array */
     $localized_array = array( 
       'ajax'                  => admin_url( 'admin-ajax.php' ),
+      'nonce'                 => wp_create_nonce( 'option_tree' ),
       'upload_text'           => apply_filters( 'ot_upload_text', __( 'Send to OptionTree', 'option-tree' ) ),
       'remove_media_text'     => __( 'Remove Media', 'option-tree' ),
       'reset_agree'           => __( 'Are you sure you want to reset back to the defaults?', 'option-tree' ),