#11813: Stale caches with trac and transparent proxies
----------------------------+-----------------------------------------------
   Reporter:  vbraun        |          Owner:  mvngu, schilly
       Type:  defect        |         Status:  new           
   Priority:  major         |      Milestone:  sage-4.7.2    
  Component:  website/wiki  |       Keywords:                
Work_issues:                |       Upstream:  N/A           
   Reviewer:                |         Author:                
     Merged:                |   Dependencies:                
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Comment(by vbraun):

 > Well, you should notice when a patch (which you know of it was) recently
 re-uploaded on trac suddenly has a modification time of months ago, and in
 case you have any doubt, you can easily view the HTML version, which also
 shows the current changeset header, and compare it to what you actually
 downloaded or have on your disk.

 Not necessarily. I often read the patch on trac (looking at the html
 version), then download it with `hg qimport .../raw-attachment/x.patch`,
 and then test it. Unless there are any test failures its easy to miss that
 mercurial got a stale copy.

 Since the upstream fix will add a `Cache-control: must-revalidate` and/or
 `Vary: *`, we don't lose anything by having Apache add those headers right
 now.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11813#comment:9>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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