Environment -
Windows 2000
IBM HTTP Server 2.0.42.2
WAS 5.025

The following IBM HTTP Server plugin logs indicate removal of If-Modified-Si
nce (IMS) header field from request headers. Why is this happening?

While setting header fields before passing request through to Websphere...

[Wed May 04 19:26:44 2005] 0000048c 0000127c - TRACE: lib_htrequest: htr
equestSetHeader: Setting the header name |If-Modified-Since| to value |Wed, 
14 Apr 2004 18:47:14 GMT|

Later on...

[Wed May 04 19:26:44 2005] 0000048c 0000127c - TRACE: lib_htrequest: htr
equestSetHeader: removing the header name |If-Modified-Since|

As a result of this all our response status codes are 200 and not 304 (where
by cached version is used) resulting in slow response times.

Thanks in advance for your suggestions.

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