Browser back button after log out
caching, logout, php
Solution
I think this code will help you, use this code in parent controller constructor.
//Log out Back
header("Cache-Control: no-cache, no-store, must-revalidate"); // HTTP 1.1.
header("Pragma: no-cache"); // HTTP 1.0.
header("Expires: 0"); // Proxies.
Problem
How can i prevent browser using the cached copy of the page after log out ? When user logged out still they can access the previous pages by using the back button. I understand that we cannot disable the back button (as per SO answers). Currently i have a large number of pages in different scenarios so i cannot modify each and every page. What i have tried - Setting the expire header (do i need to set this on each and every page ? also if i do this does browser cache the page contents ? ( because i need the browser to cache contents if user is logged in )) - I have already a polling system ( but still there is a delay to detect ) - Javascript based solution ( it works, but still users can use history option to navigate or a long press in back button ) I am really stuck here , Could you please help me to solve the problem ?