实际上，我对这个问题错了。运行HTTP分析器时，我确实看到了不同的行为。当Http anaylzer运行时，我的应用程序在收到401响应后崩溃了。当Http分析器应用程序关闭时，上面的代码按预期工作。

Actually, I was wrong about this question. I did see different behaviour when running HTTP analyzer. While Http anaylzer running, my application crashed after receiving 401 response. When Http analyzer application closed, the above code worked as expected.