public static function delete_order_note() {
		check_ajax_referer( 'delete-order-note', 'security' );

		if ( ! current_user_can( 'edit_shop_orders' ) || ! isset( $_POST['note_id'] ) ) {
			wp_die( -1 );
		}

		$note_id = (int) $_POST['note_id'];

		if ( $note_id > 0 ) {
			wc_delete_order_note( $note_id );
		}
		wp_die();
	}