> > Thats what the "must-revalidate" means. It should work better with just > max-age or Expires header - and with a longer value than 60 sec since this > is supposed to be a *permanent* situation.
As I know "must-revalidate" mean "refuse to return stale responses to the user even if they say that stale responses are acceptable" - cached object must be revalidated. Max-age=60 was only used for testing. The results of my testing: - redirect 302 or 307 - to be cached needs Cache-Control max-age > 0 or Expires "access plus 1 seconds" - redirect 301 - to be cached needs Cache-Control max-age > 60 or Expires "access plus 61 seconds" This is strange because I thought that 301 is always cached without Cache-Control or Expires headers. And I can't find any information in the documentation which describes such behaviour. zigi On Thu, Sep 21, 2017 at 11:11 AM, Amos Jeffries <squ...@treenet.co.nz> wrote: > On 21/09/17 20:36, kAja Ziegler wrote: > >> Hi Amos, >> >> 302 and 307 are not because as their status description indicates >> they are *temporary* results. They can only be cached if there are >> explicit details from the server indicating for how long. >> >> >> You were right. After I added header Cache-Control "max-age=60, >> must-revalidate" to the redirects, then the response was cached. Thank you >> for clarification. >> >> 301 should be cached unless the object would need revalidation >> immediately. >> >> >> But for 301 I always get MISS - with and without a cache-control header: >> >> $ curl -v http:/test.example.com/img301.jpg < >> http://test.example.com/img301.jpg> >> >> GET /img301.jpg HTTP/1.1 >>> Host: test.example.com <http://test.example.com> >>> User-Agent: curl/7.50.1 >>> Accept: */* >>> >>> < HTTP/1.1 301 Moved Permanently >> < Date: Thu, 21 Sep 2017 06:44:41 GMT >> < Server: Apache >> < Cache-Control: max-age=60, must-revalidate >> < Location: http://test.example.com <http://test.example.com>/img.svg >> < Content-Length: 247 >> < Content-Type: text/html; charset=iso-8859-1 >> < X-Cache: MISS from <squid-proxy> >> < X-Cache-Lookup: MISS from <squid-proxy>:3128 >> >> I can't find any information on Squid wiki or via Google if the object >> need revalidation immediately. >> > > Thats what the "must-revalidate" means. It should work better with just > max-age or Expires header - and with a longer value than 60 sec since this > is supposed to be a *permanent* situation. > > > Amos > _______________________________________________ > squid-users mailing list > squid-users@lists.squid-cache.org > http://lists.squid-cache.org/listinfo/squid-users >
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