corsHandlerFactory.add(origin, null);
        CorsHandler result = corsHandlerFactory.get(origin);

        // Verify
        assertNull(result);
    }

    @Test
    public void test_add_caseInsensitiveOrigins() {
        // Setup
        String lowerCaseOrigin = "https://example.com";
        String upperCaseOrigin = "HTTPS://EXAMPLE.COM";
        TestCorsHandler lowerHandler = new TestCorsHandler("lower-handler");