mockRequest.setHeader("Origin", null);

        corsFilter.doFilter(mockRequest, mockResponse, mockFilterChain);

        assertTrue(mockFilterChain.wasDoFilterCalled());
        assertFalse(corsHandlerFactory.wasGetCalled());
    }

    // Test with blank Origin header
    public void test_doFilter_blankOriginHeader() throws IOException, ServletException {

        TestFilterChain chain = new TestFilterChain();

        manager.process(request, response, chain);

        assertTrue(manager.isProcessCalled());
        assertFalse(chain.wasDoFilterCalled());
    }

    public void test_process_withChainContinuation() throws IOException, ServletException {
        // Test process with chain continuation