1 files changed, 4 insertions, 1 deletions
diff --git a/WebCore/bindings/js/JSCallbackData.cpp b/WebCore/bindings/js/JSCallbackData.cpp
index e128f27..e813da2 100644
--- a/WebCore/bindings/js/JSCallbackData.cpp
+++ b/WebCore/bindings/js/JSCallbackData.cpp
@@ -31,6 +31,7 @@
 
 #include "Document.h"
 #include "JSDOMBinding.h"
+#include "JSMainThreadExecState.h"
 
 using namespace JSC;
     
@@ -59,7 +60,9 @@ JSValue JSCallbackData::invokeCallback(MarkedArgumentBuffer& args, bool* raisedE
     }
     
     globalObject()->globalData()->timeoutChecker.start();
-    JSValue result = JSC::call(exec, function, callType, callData, callback(), args);
+    JSValue result = globalObject()->scriptExecutionContext()->isDocument() 
+        ? JSMainThreadExecState::call(exec, function, callType, callData, callback(), args)
+        : JSC::call(exec, function, callType, callData, callback(), args);
     globalObject()->globalData()->timeoutChecker.stop();
 
     Document::updateStyleForAllDocuments();