Add m-esr52 at 52.6.0

1 files changed, 9 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/proxy/testDirectProxyGetOwnPropertyDescriptor6.js b/js/src/jit-test/tests/proxy/testDirectProxyGetOwnPropertyDescriptor6.js
new file mode 100644
index 000000000..558aab850
--- /dev/null
+++ b/js/src/jit-test/tests/proxy/testDirectProxyGetOwnPropertyDescriptor6.js
@@ -0,0 +1,9 @@
+// Return undefined if the trap returns undefined
+var target = {};
+Object.defineProperty(target, 'foo', {
+    configurable: true
+});
+
+var handler = { getOwnPropertyDescriptor: () => undefined };
+for (let p of [new Proxy(target, handler), Proxy.revocable(target, handler).proxy])
+    assertEq(Object.getOwnPropertyDescriptor(p, 'foo'), undefined);