From 3f751b3af451137f34b0c990f365b756d8b2d8d1 Mon Sep 17 00:00:00 2001
From: JC Brand <jc@opkode.com>
Date: Fri, 9 Nov 2018 11:22:46 +0100
Subject: [PATCH] Add guard for non-existing `chat_state` value

---
 src/headless/converse-chatboxes.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/headless/converse-chatboxes.js b/src/headless/converse-chatboxes.js
index 992382046..563190f76 100644
--- a/src/headless/converse-chatboxes.js
+++ b/src/headless/converse-chatboxes.js
@@ -405,7 +405,7 @@ converse.plugins.add('converse-chatboxes', {
                  * as taken from the 'chat_state' attribute of the chat box.
                  * See XEP-0085 Chat State Notifications.
                  */
-                if (_converse.send_chat_state_notifications) {
+                if (_converse.send_chat_state_notifications && this.get('chat_state')) {
                     _converse.api.send(
                         $msg({'to':this.get('jid'), 'type': 'chat'})
                             .c(this.get('chat_state'), {'xmlns': Strophe.NS.CHATSTATES}).up()