Client has aggressive page caching on his network ... causing PAIN! Any ideas?

[eluser]drewbee[/eluser]
Try using all the headers. I had this issue from the proxy at one of my last jobs I worked at. It only cached css and js files though.

Code:

$this->output->set_header("Last-Modified: " . gmdate( "D, j M Y H:i:s" ) . " GMT"); // Date in the past
$this->output->set_header("Expires: " . gmdate( "D, j M Y H:i:s", time() ) . " GMT"); // always modified
$this->output->set_header("Cache-Control: no-store, no-cache, must-revalidate"); // HTTP/1.1
$this->output->set_header("Cache-Control: post-check=0, pre-check=0", FALSE);
$this->output->set_header("Pragma: no-cache");