From c1be88155d1accfa69fbfa5da7050342bb383f1c Mon Sep 17 00:00:00 2001
From: Sebastian Markbage <sebastian@calyptus.eu>
Date: Thu, 24 Jul 2025 17:34:56 -0400
Subject: [PATCH] Conditionally detect sources panel

---
 packages/react-devtools-extensions/src/main/index.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/react-devtools-extensions/src/main/index.js b/packages/react-devtools-extensions/src/main/index.js
index a82df1e22633..46c42418c331 100644
--- a/packages/react-devtools-extensions/src/main/index.js
+++ b/packages/react-devtools-extensions/src/main/index.js
@@ -111,7 +111,7 @@ function createBridge() {
     chrome.devtools.panels.elements.onSelectionChanged.removeListener(
       onBrowserElementSelectionChanged,
     );
-    if (sourcesPanel) {
+    if (sourcesPanel && sourcesPanel.onSelectionChanged) {
       currentSelectedSource = null;
       sourcesPanel.onSelectionChanged.removeListener(
         onBrowserSourceSelectionChanged,
@@ -124,7 +124,7 @@ function createBridge() {
   chrome.devtools.panels.elements.onSelectionChanged.addListener(
     onBrowserElementSelectionChanged,
   );
-  if (sourcesPanel) {
+  if (sourcesPanel && sourcesPanel.onSelectionChanged) {
     sourcesPanel.onSelectionChanged.addListener(
       onBrowserSourceSelectionChanged,
     );