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From r..@ai.mit.edu (Robert S. Thau)
Subject Re: -DXBITHACK and GXBITHACK
Date Mon, 07 Aug 1995 15:41:09 GMT
   Date: Mon, 7 Aug 1995 10:32:51 -0700 (PDT)
   From: Brian Behlendorf <brian@organic.com>

   Ah, okay, I just tried http://hyperreal.com/index.html over and over, and 
   that worked as expected.  Why does MultiViews prevent conditional GETs?  

	   Brian

As with type-map files, Apache-current tries to keep caches from
caching negotiated documents (unless CacheNegotiatedDocs is explicitly
set in the config files).  It used to do this by adding a Pragma: line
to the response headers, but there are caches that don't actually
respect this, so I switched it to withholding Last-modified:, which
seems to inhibit caching more thoroughly.  (NB conditional GETs only
make sense if you already have a cached copy).

Whether it makes sense to do this when only one variant exists (as in
the typical "DirectoryIndex index" case) is, of course, open to
debate.

rst

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