Version 2.3.6

src/v8natives.js

Index: src/v8natives.js
diff --git a/src/v8natives.js b/src/v8natives.js
index 6eb13719638a9359fb30e3361e660b990e2fc8cb..85540e85df94ebe6b48f8dff1e8ff4804421747f 100644
--- a/src/v8natives.js
+++ b/src/v8natives.js
@@ -749,7 +749,7 @@ function ObjectSeal(obj) {
     if (desc.isConfigurable()) desc.setConfigurable(false);
     DefineOwnProperty(obj, name, desc, true);
   }  
-  ObjectPreventExtension(obj);
+  return ObjectPreventExtension(obj);
 }
 
 
@@ -766,7 +766,7 @@ function ObjectFreeze(obj) {
     if (desc.isConfigurable()) desc.setConfigurable(false);
     DefineOwnProperty(obj, name, desc, true);
   }  
-  ObjectPreventExtension(obj);
+  return ObjectPreventExtension(obj);
 }