doesn'tbassaccess controd chechsthe vadue of the Acces s-Controd-At1ow-ordein' header sn themes ponse must not be the witacardmiwhen the request"s credentials mode Ls include " . Theeredentiaismode of reauests initiated bor the xoslHttpRecuest Is control1ed byr the withcredentials attnabute-
*Uncaught (in promise) Error: Network Error
Chunk-vendors. c69a59f0Lis:320
at t.exports (chunk-vendons. c6925970.j5:1)
at XMLHttpRequest.d.onerror
ve-a6-e-59a59F0lfs:30ay
2 › OPTIONS htto://10.51.228.35:38763/izc-brn/brain/getAl1 403
Chunk-vendors. c69a59fe.js:300
Access to XMLHttpRequest at 'ntto://10.51.228.35:38763/jzc-brain/brain/getAll' from origin http://10.51.228.35' has been blocked by CORS policy: Response to preflight request L=/login:1
doesn"t pass access control check: No "Access-Control-Allow-Origin' header is present on the requested resource.
XMLHttpRequest at *http://20.51.228.35:38763/jzc-brain/brain/getAll from origin *nttp://10.51.228.35* has been blocked by CORS policy: Response to preflight request (3/login:1
snit pass access control check: The value of the *Access-Control-Allow-Origin* header in the response must not be the wildcard
dentia1s mode of requests initiated by the xvLHEtpRequest is controlled by Ehe withcredentiais attribute:
IM*1 when the request's credentials mode is 'include*. The
naught (in promise) Error: Network Error
shunk-vendors. c69a59f0.js:320
at .exports (chunk-vendors.c69a59f0-js:1)
at XMLHttpRequest.d.onerror(chunk-vendons)
1.前端
axios.defaults.withCredentials 将true改为false
withCredentials:默认情况下，跨源请求不提供凭据(cookie、HTTP认证及客户端SSL证明等)。通过将withCredentials属性设置为true，可以指定某个请求应该发送凭据。默认值为false。
true：在跨域请求时，会携带用户凭证
false：在跨域请求时，不会携带用户凭证；返回的 response 里也会忽略 cookie
当配置了 withCredentials = true时，必须在后端增加 response 头信息Access-Control-Allow-Origin，且必须指定域名，而不能指定为*如果后端需要带cookie过去，前端需要设置为true
nginx代理配置nginx.conf
java后端配置
1/类或方法上加 @CrossOrigin
2/ 加个全局的配置类