follow-up rev 2457243, targetInKnownToBeHandledScope can be null

roytam1 · Mar 19, 2023 · af28af9 · af28af9
1 parent 85f6a49
commit af28af9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/dom/base/FragmentOrElement.cpp b/dom/base/FragmentOrElement.cpp
@@ -1022,7 +1022,7 @@ nsIContent::GetEventTargetParent(EventChainPreVisitor& aVisitor)
             nsContentUtils::Retarget(relatedTargetAsNode, this);
           nsCOMPtr<nsINode> targetInKnownToBeHandledScope =
             FindChromeAccessOnlySubtreeOwner(aVisitor.mTargetInKnownToBeHandledScope);
-          if (nsContentUtils::ContentIsShadowIncludingDescendantOf(
+          if (targetInKnownToBeHandledScope && nsContentUtils::ContentIsShadowIncludingDescendantOf(
                 this, targetInKnownToBeHandledScope->SubtreeRoot())) {
             // Part of step 11.4.
             // "If target's root is a shadow-including inclusive ancestor of