Hwo To clear cache after logout In Laravel

Its a common problem . When I logout and then click on the browser back button the browser shows the last loaded page from the website .

I have went through lots of links on stack most of them suggest to clear the headers on logout but it didn't worked .

here is the code that I have tried

Route::get('main/logout',function(){


 Session::flush();
 Auth::logout();
 header("Cache-Control: no-cache, no-store, must-revalidate"); // HTTP 1.1.
 header("Pragma: no-cache"); // HTTP 1.0.
 header("Expires: 0"); // Proxies.
 session()->flash('alert-success', 'Success logged out');
 return Redirect::to('/');
}); 

If any of you have any IDEA please let me know

Thanks

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