Regression(266612@main) Bad jsCast() when opening Safari Web extensio…

…ns settings panel https://bugs.webkit.org/show_bug.cgi?id=259939 rdar://113579295 Unreviewed, partial revert of 266612@main to address the assertion hit. * Source/WebCore/bindings/js/SerializedScriptValue.cpp: (WebCore::CloneSerializer::fillTransferMap): Canonical link: https://commits.webkit.org/266697@main
WebKit · Aug 8, 2023 · e8ed2fc · e8ed2fc
1 parent 322a31d
commit e8ed2fc
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/Source/WebCore/bindings/js/SerializedScriptValue.cpp b/Source/WebCore/bindings/js/SerializedScriptValue.cpp
@@ -917,6 +917,9 @@ class CloneSerializer : CloneBase {
     template<typename T>
     void fillTransferMap(const Vector<T>& input, ObjectPool& result)
     {
+        if (input.isEmpty())
+            return;
+
         auto* globalObject = jsCast<JSDOMGlobalObject*>(m_lexicalGlobalObject);
         for (size_t i = 0; i < input.size(); ++i) {
             if (auto* object = toJS(globalObject, globalObject, input[i].get()).getObject())