From c8c293e6eb67a5497917042ebc37a448713ea645 Mon Sep 17 00:00:00 2001
From: ccd0 <admin@containerchan.org>
Date: Wed, 7 Jul 2021 20:38:32 -0700
Subject: [PATCH] Fix error reported in #3121.

---
 src/Posting/Captcha.t.coffee | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Posting/Captcha.t.coffee b/src/Posting/Captcha.t.coffee
index 954b23fd7..4485b58f1 100644
--- a/src/Posting/Captcha.t.coffee
+++ b/src/Posting/Captcha.t.coffee
@@ -48,7 +48,8 @@ Captcha.t =
     delete @nodes.container
 
   updateThread: ->
-    {boardID, threadID} = Captcha.t.currentThread
+    return unless @isEnabled
+    {boardID, threadID} = (Captcha.t.currentThread or {})
     newThread = Captcha.t.getThread()
     unless newThread.boardID is boardID and newThread.threadID is threadID
       Captcha.t.destroy()