Our site www.publicradioquest.com uses the captcha module version 1.27 during the registration process. Our site gets quite a bit of traffic so we needed to put eAccelerator in place in order to survive a hit from cnn.com. Captcha works great, eAcclerator works great - it's the two together that is causing a problem. A user is presented with a captcha math question - but it's the same question served up for the duration of the cache time. When a user submits their registration form - the captcha always fails the first time. The user is presented with a non-cached captcha question and then registration continues without problem.

This is reproduced by installing the captcha module then installing eAccelerator for your domain.

Thoughts on how to fix this?

Comments

driki’s picture

driki commented

I think it's resolved.

I added: 

function captcha_form_alter($formid, &$form) {
  header("Expires: Sun, 19 Nov 1978 05:00:00 GMT");
  header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
  header("Cache-Control: no-store, no-cache, must-revalidate");
  header("Cache-Control: post-check=0, pre-check=0", false);
  header("Pragma: no-cache");

And now when the capture is added to a modified form it sends the nocache information causing eAccelerator to not cache the signup form.

soxofaan’s picture

soxofaan commented
Version: 4.7.x-1.2 » 6.x-2.x-dev
Category: bug » support
Priority: Critical » Normal
wundo’s picture

wundo commented
Issue summary: View changes
Status: Active » Closed (fixed)