axios的cookie跨域以及相关配置

axios的cookie跨域以及相关配置

1、 带cookie请求 - 画个重点

axios默认是发送请求的时候不会带上cookie的，需要通过设置withCredentials: true来解决。 这个时候需要注意需要后端配合设置：

• header信息 Access-Control-Allow-Credentials:true
• Access-Control-Allow-Origin不可以为 '*'，因为 '*' 会和 Access-Control-Allow-Credentials:true 冲突，需配置指定的地址

如果后端设置 Access-Control-Allow-Origin: '*', 会有如下报错信息 

      Failed to load http://localhost:8090/category/lists: The value of the 'Access-Control-Allow-Origin' header in the response must not be the wildcard '*' when the request's credentials mode is 'include'. Origin 'http://localhost:8081' is therefore not allowed access. The credentials mode of requests initiated by the XMLHttpRequest is controlled by the withCredentials attribute.

原文链接：https://segmentfault.com/a/1190000011811117