APAR status
Closed as program error.
Error description
A 500 error occurs because the If-None-Match request header value is not being sent with double quotes by the client browser as per the RFC 2616 specification. A caching Proxy expects the ETag and If-None-Match header values to be in double quotes. Because the ETag header is being set by WCM without double quotes, the proxy server doesn't process the header internally (as it is considered invalid) and just forwards it to the client. In the next request the client sends the same value as the If-None-Match header back to the proxy which again considers it invalid and simply forwards the request to the server without treating it as a conditional header. The proxy now expects a 200 response for the request (because there were no conditional headers) but WCM processes the If-None-Match header without double quotes normally and sends a 304 response. This causes the proxy to treat the response as invalid and return a 500 error to the client browser.
Local fix
Problem summary
WCM now sets the ETag header with double quotes as per the RFC 2616 specification.
Problem conclusion
This APAR addresses the issue by ensuring valid ETag and If-None-Match header values. You may need to clear the client browser cache (to remove cached If-None-Match values) for this fix to take effect.
Temporary fix
Comments
APAR Information
APAR number
PM23578
Reported component name
LOTUS WEB CONT
Reported component ID
5724I2900
Reported release
615
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2010-10-01
Closed date
2010-10-01
Last modified date
2010-10-01
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
LOTUS WEB CONT
Fixed component ID
5724I2900
Applicable component levels
R615 PSY
UP
[{"Business Unit":{"code":"BU051","label":"N\/A"},"Product":{"code":"SUPPORT","label":"IBM Web Content Manager"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"6.1.5","Line of Business":{"code":"LOB33","label":"N\/A"}}]
Document Information
Modified date:
21 December 2021