chromium/third_party/blink/web_tests/fast/dom/Window/resources/dom-access-from-closure-window-child.html

<script src="../../../../resources/common.js"></script>
<script>
    // Capture window.window and window.opener: once this context is navigated, these properties
    // always return null.
    var w = window;
    var o = opener;
    opener.accessFrame = function()
    {
        try {
            o.log("document.URL: " + relativeTestPath(document.URL));
            o.log("window.document.URL: " + relativeTestPath(w.document.URL));
            o.log("name: " + name);
            o.log("window.name: " + w.name);
        } catch (e) {
            o.log("An exception was thrown: " + e.message);
        }
    }

    window.location = "notify-opener-done.html";
</script>