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:3000' is therefore not allowed access. The credentials mode of requests initiated by the XMLHttpRequest is controlled by the withCredentials attribute.

[MaomaoMc]

保存之后报错 但是network接口返回成功了 imageUploaded事件里面res undefined 这是咋回事