It is not necessary for the browser to decide whether to allow cross-domain requests. The request in the APP may be initiated by the APP and there is no cross-domain problem. If it is initiated by the web page, the APP can allow the webview cross-domain request, or directly intercept it itself. Then proxy this request.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
It is not necessary for the browser to decide whether to allow cross-domain requests. The request in the APP may be initiated by the APP and there is no cross-domain problem. If it is initiated by the web page, the APP can allow the webview cross-domain request, or directly intercept it itself. Then proxy this request.