相关疑难解决方法(0)

我正在尝试在我的服务器上启用 CORS。它同时托管 Apache HTTPD 和 Apache Tomee。HTTPD 配置为：

SetEnvIf Origin "^https://(.+\.)?my-domain.com$" allowed_origin=$0
Header always set Access-Control-Allow-Origin %{allowed_origin}e env=allowed_origin
Header set Access-Control-Allow-Credentials "true"
Header set Access-Control-Allow-Methods "GET, POST, OPTIONS, HEAD, PUT, DELETE, PATCH"
Header set Access-Control-Allow-Headers "accept,x-requested-method,origin,x-requested-with,x-request,cache-control,content-type"
Header set Access-Control-Max-Age "600"

和我的 Tomee web XML：

<filter>
  <filter-name>CorsFilter</filter-name>
  <filter-class>org.apache.catalina.filters.CorsFilter</filter-class>
  <init-param>
    <param-name>cors.allowed.headers</param-name>
    <param-value>Origin,Accept,X-Requested-With,Content-Type,Access-Control-Request-Method,Access-Control-Request-Headers,Accept-Language,Keep-Alive</param-value>
  </init-param>
  <init-param>
    <param-name>cors.allowed.methods</param-name>
    <param-value>GET,POST,HEAD,OPTIONS,PUT,PATCH,DELETE</param-value>
  </init-param>
</filter>
<filter-mapping>
  <filter-name>CorsFilter</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>

我的问题是我Access-Control-Allow-Credentials在对预检选项请求的响应中获得了两次标题：

HTTP/1.1 200 OK
Access-Control-Allow-Origin: https://my-origin.my-domain.com
Access-Control-Allow-Origin: https://my-origin.my-domain.com
Access-Control-Allow-Credentials: true
Access-Control-Max-Age: 600
Access-Control-Allow-Methods: GET, POST, OPTIONS, HEAD, PUT, …