Using cache and _output

[eluser]Crazy LionHeart[/eluser]
Hi all.

I can't understand how i can use function _output() on cached pages. In my _output() function i control gzip content and header. But cached pages do not pass through _output() Why?

How can I control them?

[eluser]gtech[/eluser]
[url="http://ellislab.com/forums/viewthread/78589/"]duplicate problem discussed[/url]

[eluser]Crazy LionHeart[/eluser]
[quote author="gtech" date="1209960672"][url="http://ellislab.com/forums/viewthread/78589/"]duplicate problem discussed[/url][/quote]

It's not my case. i made this: replace in Output library code:

Code:

if (isset($_SERVER['HTTP_ACCEPT_ENCODING']) AND strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') !== FALSE)
                {
                    ob_start('ob_gzhandler');
                }

to this:

Code:

//check do client request 'gzip'

if (isset($_SERVER['HTTP_ACCEPT_ENCODING']) AND substr_count($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip'))
                {
// my server doesn't work property without chunksize. May be you don't need set.
                    ob_start("ob_gzhandler", 2048);
                } else
//check do client request 'deflate'
if (isset($_SERVER['HTTP_ACCEPT_ENCODING']) AND substr_count($_SERVER['HTTP_ACCEPT_ENCODING'], 'deflate'))
                {
                    ob_start();
                }
// if client doesn't support gzip or deflate we dont sent header.

... and set compression in your config file:

Code:

/*
|--------------------------------------------------------------------------
| Output Compression
|--------------------------------------------------------------------------
|
| Enables Gzip output compression for faster page loads.  When enabled,
| the output class will test whether your server supports Gzip.
| Even if it does, however, not all browsers support compression
| so enable only if you are reasonably sure your visitors can handle it.
|
| VERY IMPORTANT:  If you are getting a blank page when compression is enabled it
| means you are prematurely outputting something to your browser. It could
| even be a line of whitespace at the end of one of your scripts.  For
| compression to work, nothing can be sent before the output buffer is called
| by the output class.  Do not "echo" any values with compression enabled.
|
*/
$config['compress_output'] = TRUE;