foreign-domain-iframe-for-selection-test.html

<html>
<head>
    <script>
        window.onload = function() {
            var selection = window.getSelection();
            if (selection.setBaseAndExtent)
                selection.setBaseAndExtent(document.body, 0, document.body, 1);
            else if (selection.selectAllChildren)
                selection.selectAllChildren(document.body);
        }
    </script>
</head>
<body>
    FOREIGN DOMAIN
</body>
</html>

chromium/third_party/blink/web_tests/http/tests/security/resources/foreign-domain-iframe-for-selection-test.html