Solution: Set the Content-type in the header to text/json;
For example, PHP: header("Content-type: text/json;charset=utf-8");
The above has introduced that when the Content-type is application/json under IE9, IE10, and IE11, a download pop-up box will appear when opening the interface, including relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
