http-proxy-middleware解决跨域（rca中使用）

1、安装http-proxy-middleware
yarn add http-proxy-middleware
2.在src目录下创建setupProxy.js

const { createProxyMiddleware } = require('http-proxy-middleware');

const apiProxy = createProxyMiddleware('/api', { target: 'http://localhost:3721/' });
//target是要请求服务器的地址

module.exports=function(app0){
    app0.use(apiProxy)
}

详细教程可以参考下面链接

https://blog.csdn.net/xmloveth/article/details/56847456