Thread

I have an EE site that is sending a Cache-Control header with every page, even the register form. However, looking at the headers sent by expressionengine.com’s register form, there is no Cache-Control header.

How do I disable this header (like expressionengine.com did)?

Welcome to the ExpressionEngine forums, myobie.

How are you setting up the cache-control header? Via .htaccess?

There are no Cache-Control headers in the .htaccess file we are using.

Are you sure this is not a server configuration issue?

All files that are served directly from apache do not have the header. Only rendered templates from EE.

Do you’ve got a link to the site? Also, which version and build of EE are you on?

I do not have a direct URL. We are using version 1.6.4. I have read through the changelog for the two newer versions and nothing is listed about Cache-Control headers.

Here is a copy of the response headers form our install and expressionengine.com’s install: http://gist.github.com/raw/47249/7b79fa9795873642e8d5d6447573dea6c0c56f71

When I query in Google, I come up with all kinds of links, one of which is Ask Apache Speed Cache Control.

It *sounds* like the issue has nothing to do with EE. What does your host have to say?

We are hosting it on our own server. It does the cache control headers when I run it in mamp on my laptop and when I deploy to our production server.

Thank you for your research. I will check all of the conf files again, just to be sure.

I have reviewed the apache conf and htaccess files again and Cache-Control does not appear in any of those files.

That’s odd.  Go to Admin ›  System Preferences ›  Output and Debugging Preferences and try turning off HTTP Page Headers.  That will make sure that EE makes no use of the PHP header() function, so we can see the raw server output.

You could also try serving a basic PHP file to see what headers are server generated.

Deactivating that did not remove the Cache-Control header. I put another php file in the same directory (so same vhost and everything) and it does not include the header. The only way I can make a file show that header is if it’s a template in EE.

Are you using any third party extensions or other PHP scripts within EE that might be sending this?  You can temporarily disable all extensions using the big green button on the extension manager page in the CP.

myobie, any news in that regard? We just had a similar case where an extension turned out to be, indeed, the culprit.

Splitting off thread here