Index: Source/bindings/dart/custom/DartMessageEventCustom.cpp |
diff --git a/Source/bindings/dart/custom/DartMessageEventCustom.cpp b/Source/bindings/dart/custom/DartMessageEventCustom.cpp |
index 77afcb35e866146c6707bbc58880755bb23e4397..316a49a661b7e851eceb471a7bf3a46cd7a585c7 100644 |
--- a/Source/bindings/dart/custom/DartMessageEventCustom.cpp |
+++ b/Source/bindings/dart/custom/DartMessageEventCustom.cpp |
@@ -123,7 +123,7 @@ void initMessageEventCallback(Dart_NativeArguments args) |
if (exception) |
goto fail; |
- LocalDOMWindow* sourceArg = DartWindow::toNative(Dart_GetNativeArgument(args, 7), exception); |
+ LocalDOMWindow* sourceArg = DartWindow::toNativeWithNullCheck(Dart_GetNativeArgument(args, 7), exception); |
if (exception) |
goto fail; |