browser-sync + http-proxy-middleware 配置代理跨域

写代理js文件下面是文件内容

 /**
  * Module dependencies.
  */
 var browserSync = require('browser-sync').create()
 var proxy = require('http-proxy-middleware') // require('http-proxy-middleware');

 /**
  * Configure proxy middleware
  */

 var jsonPlaceholderProxy = proxy('/api', {
   target: 'http://127.0.0.1:5000',
   changeOrigin: true,             // for vhosted sites, changes host header to match to target's host
   pathRewrite: {
     '^/api': ''
   },
   logLevel: 'debug'
 })

 /**
  * Add the proxy to browser-sync
  */
 browserSync.init({
   server: {
     baseDir: './',
     middleware: [jsonPlaceholderProxy]
   },
   port: 8080,
   startPath: '/'
 })

 console.log('[DEMO] Server: listening on port 8080')

随后在package.json中配置script字段，npm启动此代理即可，

注意，此处我遇到一个坑，下面参考资料的port:8080写在init函数server选项里面的话，启动出来的端口是一个随机分配的端口

　　　　并不是我们配置的8080口，需要把port选项发到server平级即可启动对应端口

参考资料

https://github.com/chimurai/http-proxy-middleware/blob/master/examples/browser-sync/index.js