Trouble with cache headers - shows no-cache no matter what
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Hello community!
I have a site for a big event that will draw some very heavy traffic in around 10 days.
Setup is as follows:
Hosting is in the US with media temple. Then the www site is accelerated with their "proCDN" product which is basically edgecast CDN.
Trouble is, that the CDN/acceleration is very picky with cache headers.
Images are cached fine but the page is not.
Looking at the headers I get this for the page:
Cache-Control:no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Connection:Keep-Alive
Content-Encoding:gzip
Content-Length:2709
Content-Type:text/html
Date:Tue, 31 May 2011 16:50:00 GMT
Expires:Thu, 19 Nov 1981 08:52:00 GMT
Keep-Alive:timeout=5, max=100
Pragma:no-cache
Server:Apache/2.2.9
Vary:User-Agent,Accept-Encoding
X-Powered-By:PHP/5.2.14
Now there's the trouble. C5 outputs no-cache headers. Trouble is that I did enable full page caching but this setting seem to be ignored!
Is there a way I can "reset" the dashboards perception of the setting? Or in the code force a cache setting.
The best scenario will being able to force a cache header on the pages too, so the acceleration in Europe can do it's job. Otherwise it's just a fancy non-caching proxy and doesn't really help..
Any ideas?
C5 version is 5.4.1.1.
I have a site for a big event that will draw some very heavy traffic in around 10 days.
Setup is as follows:
Hosting is in the US with media temple. Then the www site is accelerated with their "proCDN" product which is basically edgecast CDN.
Trouble is, that the CDN/acceleration is very picky with cache headers.
Images are cached fine but the page is not.
Looking at the headers I get this for the page:
Cache-Control:no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Connection:Keep-Alive
Content-Encoding:gzip
Content-Length:2709
Content-Type:text/html
Date:Tue, 31 May 2011 16:50:00 GMT
Expires:Thu, 19 Nov 1981 08:52:00 GMT
Keep-Alive:timeout=5, max=100
Pragma:no-cache
Server:Apache/2.2.9
Vary:User-Agent,Accept-Encoding
X-Powered-By:PHP/5.2.14
Now there's the trouble. C5 outputs no-cache headers. Trouble is that I did enable full page caching but this setting seem to be ignored!
Is there a way I can "reset" the dashboards perception of the setting? Or in the code force a cache setting.
The best scenario will being able to force a cache header on the pages too, so the acceleration in Europe can do it's job. Otherwise it's just a fancy non-caching proxy and doesn't really help..
Any ideas?
C5 version is 5.4.1.1.
I'm completely puzzled.
I did a file search of all files in the C5 distribution source code for "no-cache", ignoring case, and the only hit is in /concrete/controllers/login.php
Can someone please tell me where the no-cache header in normal views are coming from?
It's not the server - I have other cms's running in same stack without the same problems - so it has to come from C5 somewhere..
I did a file search of all files in the C5 distribution source code for "no-cache", ignoring case, and the only hit is in /concrete/controllers/login.php
Can someone please tell me where the no-cache header in normal views are coming from?
It's not the server - I have other cms's running in same stack without the same problems - so it has to come from C5 somewhere..
I have the same problem.
Is THAT the reason?https://www.owasp.org/index.php/Testing_for_Browser_cache_weakness_%...
Is THAT the reason?https://www.owasp.org/index.php/Testing_for_Browser_cache_weakness_%...
Can it be that the full caching actually does not set cache headers to match?
And how can I control the cache headers of the pages?
Either by a plugin or by hacking the code.