vue项目打包后怎样优雅的解决跨域

proxyTable: {   '/api': {    target: 'http://113.113.113.113:5000', //假的接口地址哈    changeOrigin: true,    pathRewrite: {     '^/api': ''    }   },

server {    listen    8082;    server_name 127.0.0.1; //咱自己nginx服务器地址    #charset koi8-r;    #access_log logs/host.access.log main;    location / {      root  html;      index index.html index.htm;    }  location /app-api {      rewrite ^.+app-api/?(.*)$ /$1 break;      include uwsgi_params;      proxy_pass  http://113.113.113.113:5001/; //后端接口地址      //关键部分start      add_header Access-Control-Allow-Origin *;      add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS';      add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization,token';      //关键部分end      //以下配置参见nginx配置文档哈      #Proxy Settings      proxy_redirect   off;      proxy_set_header  Host       $host;      proxy_set_header  X-Real-IP    $remote_addr;      proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;      proxy_set_header  Connection    close;      proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;      proxy_max_temp_file_size 0;      proxy_connect_timeout   90;      proxy_send_timeout     90;      proxy_read_timeout     90;      proxy_buffer_size     4k;      proxy_buffers       4 32k;      proxy_busy_buffers_size  64k;      proxy_temp_file_write_size 64k;    }}

var BASE_URL = '/api';var isPro = process.env.NODE_ENV === 'production'if(isPro){ BASE_URL= 'http://113.113.113.113:5000', //线上或者测试地址 //BASE_URL= 'http://127.0.0.1:8020', //nginx代理地址 //当我们需要打包后依然能正常调接口的时候用这个  }const UrlConfig = { getToken:BASE_URL + "某接口"}export default { UrlConfig};