关于react.js:mac解决跨域配置proxy

const {createProxyMiddleware} = require('http-proxy-middleware')module.exports = function(app){    app.use(        '/api',         createProxyMiddleware(  //1.0.0版本的援用形式官网规定createProxyMiddleware            {                 target: 'http://127.0.0.1:5000', //这里用ip+端口                changeOrigin: true,                pathRewrite: { //这里记得加上                    "^/api": ""                  }            }        )    );}