After setting the cookie, there is no cookie information in the Application during browser debugging. After the page is refreshed, the cookie disappears and the program cannot obtain it. I don’t know where the problem is. Is there anything I need to pay attention to when setting the cookie?
The picture below shows the request and return information
The picture below is a screenshot of Application
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
I found the reason, it was caused by cross-domain, just add the following information
是否设置过cookie的生命周期，帖JS代码