"Disallowed Key Characters" because $_COOKIE were not cleared reasonable.

[eluser]magikman[/eluser]
[quote author="Felix Cheruiyot" date="1311275505"]There is no problem with CI input library. [/quote]

I'm affraid ther is one in the special case Doan DU explained.

The best way to get rid of that is to erase the cookies from the domain where you have php proxy installed.

Or maybe we could override the Input class but that's not for me.