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  to 2.2.x.


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   * mod_cache: Let Cache-Control max-age set the expiration date. 
        Trunk version of patch:
         http://svn.apache.org/viewvc?view=rev&revision=539063
        2.2.x version of patch:
         http://people.apache.org/~jerenkrantz/max-age-expire-2.2.x.patch
         (No ->minex in 2.2.x)
        +1: jerenkrantz, fielding, striker



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max-age is explicitly specified.

(Backport of r538807)

Reviewed by: jerenkrantz, fielding, rpluem


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(Backport of r538992, r538997, r539054)

Reviewed by: jerenkrantz, fielding, rpluem


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directives. PR 40439.

(Backport of r441947)

Reviewed by: rpluem, jim, jerenkrantz


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(Backport of r520733)

Reviewed by: wrowe, rpluem, niq


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(Backport of r490142)

Reviewed by: niq, jim, wrowe


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(Backport of r490156, r499567)

Reviewed by: niq, rpluem, wrowe


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  Vote on a backport.


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Move two that are approved to the right section. (rpluem and fielding both
posted on dev@httpd that they are okay with trunk version going in instead.)


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* Save the key we generate during our first run of cache_generate_key_default
  on each request in the request_config. During consecutive runs of
  cache_generate_key_default during processing the request we restore it
  from there as we might not be able to generate the same key again as
  the ingredients used to compose the key might have changed and we constantly
  must use a key that could be generated during the quick handler phase.

PR: 41475

Submitted by: rpluem
Reviewed by: rpluem, jerenkrantz, jim


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* Add CacheIgnoreQueryString directive to cache requests with a query string
  even if no expiration time is specified. Futhermore the query string will not
  be used for key generation such that requests to the same URI path, but with
  different query strings are mapped to the same cache entity. Turning this
  setting to ON violates RFC 2616/13.9 and thus it is turned off by default.

PR: 41484
Submitted by: Fredrik Widlund <fredrik.widlund qbrick.com>
Reviewed by: rpluem, jerenkrantz, jim


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(Propose another mod_cache-related backport)


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approved patches later on today :)


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I'm looking at the varios cache patches today and
will likely vote them later on.


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* Remove all filters that are before the cache_out filter. This ensures
  that we kick off the filter stack with our cache_out filter being the
  first in the chain. This make sense because we want to restore things
  in the same manner as we saved them.
  There may be filters before our cache_out filter, because

  1. We call ap_set_content_type during cache_select. This causes
     Content-Type specific filters to be added.
  2. We call the insert_filter hook. This causes filters e.g. like
     the ones set with SetOutputFilter to be added.

PR: 40090

Submitted by: rpluem
Reviewed by: rpluem, wrowe, jerenkrantz


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and various prerequisite patches


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  So remove it.


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* Add extern "C" linkage to several headers to make it easier to use
  them in C++ code.

PR: 42286
Submitted by: Davi Arnaut <davi haxent.com.br>
Reviewed by: rpluem, wrowe, niq


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