Edit Cobalt Record in Chrome/IE10, then save/close - Cannot re-edit

This is a help for anyone who has this issue, (as we have recently.)

Error: "You are not permitted to use that link to directly access that page (#218)."

How to recreate:

1. edit record

2. save and close

3. attempt edit record again

you must log out and log back in to be able to edit.

We have discovered - this bug is in Joomla 2.5 and 3.1.x.
- It is fixed in 3.2.
- It is not a Cobalt Bug, but a Joomla bug.

To solve it, you need to turn off ExpiresDefault in your .htaccess file.(!)

ExpiresActive On > ExpiresActive Off

Yes, its bizarre.

Somehow, and only in IE10 and Chrome, there is a session cookie that gets setup that is not deleted properly. Joomla 3.2 seems to work fine though.

Unfortunately the site will be slower with ExpiresActive Off, and I know Sergey will not be happy with this ;)