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'.
凭据模式（credentials mode）是指在跨域请求中，浏览器如何处理跨域 cookie 和 HTTP 认证信息。它可以设置为以下三个值之一：
- omit：不带凭据，即不发送跨域 cookie 和 HTTP 认证信息。
- same-origin：仅当请求的 URL 与调用脚本位于同一来源时才发送凭据。
- include：总是发送凭据，即使是跨域请求。
在使用 fetch() 方法发送请求时，您可以通过设置 credentials 选项来配置凭据模式。
fetch('https://example.com', { credentials: 'include' })
.then(response => {
});
在使用 XMLHttpRequest 发送请求时，您可以通过设置 withCredentials 属性为 true 来配置请求带有凭据。
const xhr = new XMLHttpRequest();
xhr.open('GET', 'https://example.com');
xhr.withCredentials = true;
xhr.send();
使用 axios 发送请求时，您可以通过设置 withCredentials 选项为 true 来配置请求带有凭据。
axios.get('https://example.com', { withCredentials: true })
.then(response => {
});
在使用 axios 发送请求时，通过设置 withCredentials 选项为 true 来配置请求带有凭据。这相当于将凭据模式设置为 include，即总是发送凭据，即使是跨域请求。
axios 库没有提供直接设置凭据模式的选项，但可以通过设置 withCredentials 选项来实现类似的效果。当 withCredentials 设置为 true 时，跨域请求将会带上 cookie、HTTP 认证信息以及客户端 SSL 证书。
- 一种方式可以调整后端接口响应头中的
Access-Control-Allow-Origin 为指定源 - 另一种就是调整请求中不携带凭证信息，但如果接口必须经过 Authorization 认证，则需要手动添加该头字段。
const instance = axios.create({
withCredentials: false,
headers: {
Authorization: `bearer ${getAccessToken()}`,
});
instance
.post(`https://example.com`, payload)
.then((res) => res?.data || {});
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'.
el-ui上传文件报错：
response must not be the wildcard '*' when the request's credentials mode is 'include'.
Origin 127.0.0.1:9527 is therefore not allowed access.the credentials mode of requests initiated...
java前后端分离项目，前端ajax发送跨域请求时报错Origin' header in the response must not be the wildcard '*' when the request's credentials mode is 'include'.
后端controller加入@CrossOrigin注解后，
只需要在ajax中加入contentType: "appl...
Access-Control-Allow-Origin' header in the response must not be the wildcard '*' when the request's credentials mode is 'include'.
后台不能使用通配符 ‘*’，否则前端报错；
请求的origin和后台设置的origin不一致。
解决方案：
前端代码不用动。
后台 为‘Access-Control-Allow-Origin’设置动态的ori
服务端nginx已配置跨域允许
add_header Access-Control-Allow-Origin *;
add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS';
add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control
credentials mode is 'include'是请求带cookie
function fetchFn(){
let myHeaders = new Headers({
'Access-Control-Allow-Origin': '*',
'Content-Type': 'text/plain',
'Cache-Control': '...
response.headers['Access-Control-Allow-Credentials'] = 'true'
response.headers['Access-Control-Allow-Origin'] = '*'
response.headers['Access-Control-Allow-Methods'] = 'POST'
response...
英文描述：
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'。
我们的解决方案：
1、服务器端设置：
Access-Control-Allow-Headers：Origin, Content
## Features- Instant (as you type) results- Wildcard support- RegEx support- Filter support (only search for files folders or everything)- Include and exclude specific folders to be indexed- Ability to exclude certain files/folders from index using wildcard expressions- Fast sort by filename path size or modification time- Customizable interface
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 attr
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