javascript - Fetch跨域请求问题

Question

我有一个自己的网站A是thinkphp写的，现在使用react开发了网站B。两个网站一个是localhost:8080一个是localhost:8081

两个网站是同一套用户系统，在A网站跳转到B网站之后，B网站需要使用A网站的session来保持登录状态，目前使用fetch的

credentials = 'include'

配合后台的

header('Access-Control-Allow-Credentials: true');  
header('Access-Control-Allow-Origin: http://localhost:8081'); 

已经实现跨域请求

但问题是8081端口下没有8080端口下的cookie，无法携带cookie获取session状态，
求问大神们怎么解决

Answer 1

Cookies can be set to take effect within the same domain.............

Answer 2

This problem should be solved on the server side. Put the session in a shared data area or database (such as redis). If different ports determine that the user is the same, the session data of the same user should be obtained and returned.