CodeIgniter 2.x会话和Internet Explorer

I've been reading a lot online about CodeIgniter and its issues with sessions and Internet Explorer. A lot of it seemed to center around the name of the session not having an underscore in the name. These articles all seemed to be for CI 1.x. Is CI still having this issue? I tried removing the underscore and it didn't help. I also tried adding this code:I've been reading a lot online about CodeIgnite