From a7f7a2231938e49ca2521fd417be7a313045c006 Mon Sep 17 00:00:00 2001
From: janekptacijarabaci <janekptacijarabaci@seznam.cz>
Date: Sat, 14 Apr 2018 08:50:17 +0200
Subject: Bug 1326453 - Part 2: Change @@toStringTag for module namespace
 objects to non-configurable

---
 js/src/builtin/ModuleObject.cpp                   | 2 +-
 js/src/jit-test/tests/modules/import-namespace.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/js/src/builtin/ModuleObject.cpp b/js/src/builtin/ModuleObject.cpp
index 921319028..f7323e852 100644
--- a/js/src/builtin/ModuleObject.cpp
+++ b/js/src/builtin/ModuleObject.cpp
@@ -394,7 +394,7 @@ ModuleNamespaceObject::ProxyHandler::getOwnPropertyDescriptor(JSContext* cx, Han
             desc.object().set(proxy);
             desc.setWritable(false);
             desc.setEnumerable(false);
-            desc.setConfigurable(true);
+            desc.setConfigurable(false);
             desc.setValue(value);
             return true;
         }
diff --git a/js/src/jit-test/tests/modules/import-namespace.js b/js/src/jit-test/tests/modules/import-namespace.js
index 94a48461d..71a1ce7df 100644
--- a/js/src/jit-test/tests/modules/import-namespace.js
+++ b/js/src/jit-test/tests/modules/import-namespace.js
@@ -59,7 +59,7 @@ desc = Object.getOwnPropertyDescriptor(ns, Symbol.toStringTag);
 assertEq(desc.value, "Module");
 assertEq(desc.writable, false);
 assertEq(desc.enumerable, false);
-assertEq(desc.configurable, true);
+assertEq(desc.configurable, false);
 assertEq(typeof desc.get, "undefined");
 assertEq(typeof desc.set, "undefined");
 assertEq(Object.prototype.toString.call(ns), "[object Module]");
-- 
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