diff --git a/src/messenger/webim/operator/agent.php b/src/messenger/webim/operator/agent.php
index 6aa95e86..53227251 100644
--- a/src/messenger/webim/operator/agent.php
+++ b/src/messenger/webim/operator/agent.php
@@ -40,6 +40,7 @@ if( !isset($_GET['token']) ) {
 		$page = array(
 			'user' => topage($thread['userName']), 'agent' => topage($thread['agentName']), 'link' => $_SERVER['PHP_SELF']."?thread=$threadid&force=true"
 		);
+		start_html_output();
 		require('../view/confirm.php');
 		exit;
 	}
diff --git a/src/messenger/webim/thread.php b/src/messenger/webim/thread.php
index 1b405a5d..182b84d6 100644
--- a/src/messenger/webim/thread.php
+++ b/src/messenger/webim/thread.php
@@ -59,6 +59,10 @@ if( $act == "refresh" ) {
 	$kind = $isuser ? $kind_user : $kind_agent;
 	$from = $isuser ? $thread['userName'] : $thread['agentName'];
 
+	if(!$isuser && $operator['operatorid'] != $thread['agentId']) {
+		show_error("cannot send");
+	}
+
 	post_message($threadid,$kind,$message,$from, $isuser ? null : $operator['operatorid'] );
 	print_thread_messages($thread, $token, $lastid, $isuser, $outformat);
 	exit;