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ei can anyone help me with my project..iv juz finished d login n other functionalities but i hav one security problem…after a user has log out i unset their cookies n all but if they press back they can still go back how do u prevent them from returning back to d previous page if they press back even though they hav logged out already? i dont hav a damn clue i wud really appreciate it if someone can tell me how or refer me to site that teaches on how to deal with this internet cache thing thanks