I have found the problem,which is i have this javascript which makes multiple requests to the server to check if the user is still logged in

 <script>
   (function worker() {
        $.ajax({
            url: '{{URL::route('check')}}',
            success: function(data) {
                if(data === 'false') {
                    window.location.href = '{{URL::route('login')}}'
                }else {
                    //success
                }
            },
            complete: function() {
                // Schedule the next request when the current one's complete
                setTimeout(worker, 200);
            }
        });
    })();
</script>

the requests cause session persistance to fail!! How do i fix this?