CI 2.0 Session library

[eluser]WanWizard[/eluser]
Try it, and see if it works.

But it's not needed, there is a simple solution via a MY_Session extension, posted here several times. Use the search.

The CI session library is NOT concurrency-safe. And that is true both for ajax calls and for opening the site in multiple browser windows. The only quick fix is to disable session id rotation.