RFC3229 enabled
Experimental support for RFC 3229 "feed" instance manipulation method:
RewriteCond %{REQUEST_URI} /blog/index.atom$
RewriteCond %{HTTP:A-IM} \bfeed\b
RewriteCond /home/rubys/blog/history/index.%{HTTP:If-None-Match}.asis -s
RewriteRule index.atom$ /blog/history/index.%{HTTP:If-None-Match}.asis
cache.py
has the delta function.