<filter>      <filter-name>CorsFilter</filter-name>      <filter-class>org.apache.catalina.filters.CorsFilter</filter-class>      <init-param>         <param-name>cors.allowed.origins</param-name>         <param-value>*</param-value>       </init-param>       <init-param>         <param-name>cors.allowed.methods</param-name>         <param-value>GET,POST,HEAD,OPTIONS,PUT</param-value>       </init-param>       <init-param>         <param-name>cors.allowed.headers</param-name>         <param-value>Content-Type,X-Requested-With,accept,Origin,Access-Control-Request-Method,Access-Control-Request-Headers</param-value>       </init-param>       <init-param>         <param-name>cors.exposed.headers</param-name>         <param-value>Access-Control-Allow-Origin,Access-Control-Allow-Credentials</param-value>       </init-param>       <init-param>         <param-name>cors.support.credentials</param-name>         <param-value>false

tomcat 從此版本後如果 orign 設定為 * ，就不再允許credentials 設定為true .

原文：Ensure that the HTTP Vary header is set correctly when using the CORS filter and improve the cacheability of requests that pass through the COPRS filter. (markt)