跨域问题解决

has been blocked by CORS policy: 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'. The credentials mode of requests initiated by the XMLHttpRequest is controlled by the withCredentials attribute

这个错误是因为同时设置了 Access-Control-Allow-Origin=* 和 Access-Control-Allow-Credentials=true

解决办法是把*改成指定域名