    public void getResourceIllegalTraversal() {
        testingClient.server().run(session -> {
            try {
                Theme theme = session.theme().getTheme("base", Theme.Type.LOGIN);
                Assert.assertNull(theme.getResourceAsStream("../templates/test.ftl"));
            } catch (IOException e) {
                Assert.fail(e.getMessage());
            }
        });
    }