javaweb项目在web.xml中添加了filter之后，为什么报404了？

Question

 <filter>
       <filter-name>httpHeaderSecurity</filter-name>
       <filter-class>org.apache.catalina.filters.HttpHeaderSecurityFilter</filter-class>
      
       <init-param>
         <param-name>blockContentTypeSniffingEnabled</param-name>
         <param-value>true</param-value>
       </init-param>  
       
     </filter>
   
     <filter-mapping>
       <filter-name>httpHeaderSecurity</filter-name>  
       <url-pattern>/pc/index.html</url-pattern>
     </filter-mapping>

加了这个filter之后，如下路径就报404了，注释掉就能正常访问
http://127.0.0.1:7001/chatClient/pc/index.html?v_t=C8ADC4819E1569EED6D4763FB958D1FA&customerSessionId=JVHXBBEAJCHJERGZDUBOJBHUAHFICBGWIVANGIFF&customerId=7800071499&channel=m

Answer 1

tomcat catalina.jar版本低了,里面没有这个HttpHeaderSecurityFilter