From bc8bb7a700e9178d637ed6d876a20e93030eb130 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20Schw=C3=B6bel?= <s.schwoebel@whitevision.de>
Date: Sun, 25 Jan 2026 10:46:41 +0100
Subject: [PATCH] fix: prevent undefined property warning in MODX 3

---
 core/components/ace/elements/plugins/ace.plugin.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/components/ace/elements/plugins/ace.plugin.php b/core/components/ace/elements/plugins/ace.plugin.php
index 1acfabb..46d303e 100644
--- a/core/components/ace/elements/plugins/ace.plugin.php
+++ b/core/components/ace/elements/plugins/ace.plugin.php
@@ -103,7 +103,7 @@
         $modxTags = $extension == 'tpl';
         break;
     case 'OnDocFormPrerender':
-        if (!$modx->controller->resourceArray) {
+        if (!$modx->controller || !isset($modx->controller->resourceArray)) {
             return;
         }
         $field = 'ta';