redir111

add_filter("gform_confirmation", "custom_confirmation", 10, 4);

function custom_confirmation($confirmation, $form, $lead, $ajax){
$redirurl = $_SERVER['HTTP_REFERER'];

    if($form["id"] == "3"){
        $confirmation = array();
        $confirmation['redirect'] = $redirurl;
    }
    return $confirmation;
}