1 files changed, 16 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webstorage/storage_local_window_open.window.js b/testing/web-platform/tests/webstorage/storage_local_window_open.window.js
new file mode 100644
index 0000000000..8c67289400
--- /dev/null
+++ b/testing/web-platform/tests/webstorage/storage_local_window_open.window.js
@@ -0,0 +1,16 @@
+async_test(function(t) {
+
+    var storage = window.localStorage;
+    storage.clear();
+
+    storage.setItem("FOO", "BAR");
+    var win = window.open("resources/storage_local_window_open_second.html");
+    window.addEventListener('message', t.step_func(function(e) {
+        e.data.forEach(t.step_func(function(assertion) {
+            assert_equals(assertion.actual, assertion.expected, assertion.message);
+        }));
+        win.close();
+        t.done();
+    }));
+
+}, "A new window to make sure there is a copy of the previous window's localStorage, and that they do not diverge after a change");