前后端分离下,egg如何设置跨域

Question

前端url是
http://localhost:3333/index.html#/detail这样的格式
访问后端,报跨域错误
No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:3333' is therefore not allowed access.
请问后端如何设置
config.default.js里设置白名单：
http://localhost:3333/index.html#/detail
仍然无效。百思不得姐，求教高手！

Answer 1

不设置白名单，直接在egg跨域插件配置的origin里面指定访问域名并开启认证模式就好了

//config.js
config.cors = {
    origin:'http://ip:port',
    credentials: true,
    allowMethods: 'GET,HEAD,PUT,POST,DELETE,PATCH'
  };

Answer 2

开启cors
https://github.com/eggjs/egg/...

Answer 3

egg-cors链接描述