From 9c5faf52fcf4615e1de7113a8391201a213b1c42 Mon Sep 17 00:00:00 2001
From: Gianmarco Poggi <gianmarco.poggi@live.it>
Date: Fri, 2 Jan 2026 11:14:17 +0100
Subject: [PATCH] fix: skip checks on frameElement when null for iframe
 detection

---
 js/piwik.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/js/piwik.js b/js/piwik.js
index 0d8084cecf6..5f7ac95c4a4 100644
--- a/js/piwik.js
+++ b/js/piwik.js
@@ -2176,7 +2176,7 @@ if (typeof window.Matomo !== 'object') {
                 return true;
             }
 
-            if (isDefined(frameElement)) {
+            if (frameElement !== null && isDefined(frameElement)) {
                 return (frameElement && String(frameElement.nodeName).toLowerCase() === 'iframe') ? true : false;
             }