Laravel 5 slow refresh waiting for blocked storage access requests from trackers

I've moved a laravel app form a domain to another. All works well but I noticed, after clicked on subitting a button, that it spend 20seconds to refresh the paige. During this the system is waiting for an external components (addthis.com, google ads etc..), end when solved the process in console I read the "Blocked: Storage access requests from trackers" message. I've setup session.php to 'same_site' => 'lax' (it was null..) but nothing happends. Do you have some idea? How to include safe url list as walk-artoud it ? Thanks

via Chebli Mohamed