The 'Access-Control-Allow-Origin' header contains multiple
时间: 2023-11-16 13:57:53 浏览: 30
values but only one is allowed是什么问题?如何解决?
这个问题是由于设置了多个跨域信息,导致响应头中的Access-Control-Allow-Origin字段包含了多个值,但是规定只能有一个值。解决方法是去除多余的跨域配置,只保留一次。比如在网关配置了一个跨域,然后在代码中又配置了一次跨域,需要注释掉其中一次跨域配置即可。
相关问题
The 'Access-Control-Allow-Origin' header contains multiple values
The 'Access-Control-Allow-Origin' header contains multiple values错误是由于设置了相同的跨域信息导致的。解决办法可以参考以下方法:
1. 使用Spring Cloud Gateway解决双重跨域问题。在配置文件中添加以下内容:
```
spring:
cloud:
gateway:
default-filters:
- DedupeResponseHeader=Access-Control-Allow-Origin Access-Control-Allow-Credentials, RETAIN_UNIQUE
globalcors:
cors-configurations:
'\[/**\]':
allowed-origins: "*"
allowed-methods: "*"
allowed-headers: "*"
allow-credentials: true
```
这样可以确保只有一个Access-Control-Allow-Origin头信息被设置。
2. 在Nginx配置中添加以下内容,更改客户端请求头,确保只有一个Access-Control-Allow-Origin头信息被设置:
```
location / {
proxy_set_header Origin '';
proxy_pass 123.com;
add_header Access-Control-Allow-Origin "*" always;
}
```
这样可以通过更改请求头来解决多个Access-Control-Allow-Origin头信息的问题。
请根据具体情况选择适合的解决办法。
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the 'access-control-allow-origin' header contains multiple values
The "Access-Control-Allow-Origin" header is used to specify which origins are allowed to access a resource. If the header contains multiple values, it may indicate a misconfiguration or a security vulnerability.
To fix this issue, you can check the server configuration to ensure that the header is set correctly and only contains a single value. You can also try clearing your browser cache and cookies, as this may sometimes cause issues with CORS headers. If the issue persists, it may be necessary to contact the website owner or server administrator for further assistance.