The description of your question is unclear and there is no way to answer it. Assuming that you are talking about some content that is not in the source code, you can go to the browser console and have a look. It contains the content of the ajax request. Directly request the address to obtain the required information
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
The description of your question is unclear and there is no way to answer it. Assuming that you are talking about some content that is not in the source code, you can go to the browser console and have a look. It contains the content of the ajax request. Directly request the address to obtain the required information