I am assuming this screen is attached to the pi and not a network screen (I have a fixed tablet that just displays the webpage)I only know two ways of making the pi refresh its screen. I tell it to reboot, or I have to pour a beer. Is it possible to have a button on the admin page that will refresh the host's display?
So we could just add the following to admin\tap_list.php ~line 95
// Refreshes connected pages
if(isset($config[ConfigNames::AutoRefreshLocal]) && $config[ConfigNames::AutoRefreshLocal]){
exec(__DIR__."/../includes/refresh.sh");
}
that call a script that forces any open browser to refresh (if the config is set to do that)