diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/proxy/testDirectProxyGetOwnPropertyDescriptor11.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/proxy/testDirectProxyGetOwnPropertyDescriptor11.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,18 @@
+load(libdir + "asserts.js");
+
+var target = {};
+Object.getOwnPropertyDescriptor(new Proxy(target, {
+  getOwnPropertyDescriptor: function () {
+    return {value: 2, configurable: true};
+   }
+}), 'foo');
+
+var target = {};
+Object.preventExtensions(target);
+assertThrowsInstanceOf(function () {
+  Object.getOwnPropertyDescriptor(new Proxy(target, {
+    getOwnPropertyDescriptor: function () {
+        return {value: 2, configurable: true};
+    }
+  }), 'foo');
+}, TypeError);