From 0acd996e03be917b7e3e64f4486f1fde15b9fd63 Mon Sep 17 00:00:00 2001
From: roytam1 <roytam@gmail.com>
Date: Sun, 14 Apr 2024 20:39:31 +0800
Subject: [PATCH] dom: check mDoc before use, as it can be null

---
 dom/base/nsGlobalWindow.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dom/base/nsGlobalWindow.cpp b/dom/base/nsGlobalWindow.cpp
index da2e5267f0..ce025a42f5 100644
--- a/dom/base/nsGlobalWindow.cpp
+++ b/dom/base/nsGlobalWindow.cpp
@@ -3550,7 +3550,7 @@ nsGlobalWindow::GetEventTargetParent(EventChainPreVisitor& aVisitor)
 
   aVisitor.mCanHandle = true;
   // Middle/right click shouldn't dispatch click event, use auxclick to instead.
-  if (mDoc->IsXULDocument()) {
+  if (mDoc && mDoc->IsXULDocument()) {
     aVisitor.mForceContentDispatch = true; //FIXME! Bug 329119
   }
   if (msg == eResize && aVisitor.mEvent->IsTrusted()) {