PH36302: IBM CACHING PROXY MUST IGNORE IF-MODIFIED-SINCE IF THE REQUEST ALSO CONTAINS AN IF-NONE-MATCH HEADER.

APAR status

• Closed as program error.

Error description

• IBM Caching Proxy must ignore If-Modified-Since if the request
  also contains an If-None-Match header.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Users of IBM Caching Proxy with caching     *
  *                  enabled                                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: IBM Caching Proxy does not ignore If-   *
  *                      Modified-Since if the request also has  *
  *                      the If-None-Match header set.           *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  IBM Caching Proxy does not ignore If-Modified-Since if the
  request
  also has the If-None-Match header set.
  This can cause IBM Caching Proxy to send an HTTP 304 response
  with
  the requested resource in the response body if the If-None-Match
  header is not matched but the file was modified after the date
  specific in the If-Modified-Since header.
  

Problem conclusion

• IBM Caching Proxy now ignores the If-Modified-Since header if th
  request also has the header If-None-Match is set.
  
  The fix will be included in IBM Caching Proxy fixpacks:
  - 9.0.5.8
  - 8.5.5.20
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WEBS CACH PROXY

• Fixed component ID

  5724H8810

Applicable component levels