1 files changed, 10 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/proxy/testDirectProxyPreventExtensions1.js b/js/src/jit-test/tests/proxy/testDirectProxyPreventExtensions1.js
new file mode 100644
index 0000000000..384be1cf57
--- /dev/null
+++ b/js/src/jit-test/tests/proxy/testDirectProxyPreventExtensions1.js
@@ -0,0 +1,10 @@
+// Forward to the target if the trap is not defined
+var target = {};
+var proxy = new Proxy(target, {});
+Object.preventExtensions(proxy);
+assertEq(Object.isExtensible(target), false);
+
+target = {};
+proxy = Proxy.revocable(target, {}).proxy;
+Object.preventExtensions(proxy);
+assertEq(Object.isExtensible(target), false);