Refactoring: added controlled middleware and changed response class

app/Template/config/integrations.php

@@ -2,7 +2,7 @@
     <h2><?= t('Integration with third-party services') ?></h2>
 </div>
 
-<form method="post" action="<?= $this->url->href('config', 'integrations') ?>" autocomplete="off">
+<form method="post" action="<?= $this->url->href('config', 'save', array('redirect' => 'integrations')) ?>" autocomplete="off">
     <?= $this->form->csrf() ?>
     <?= $this->hook->render('template:config:integrations', array('values' => $values)) ?>
 
@@ -14,4 +14,4 @@
     <div class="form-actions">
         <button type="submit" class="btn btn-blue"><?= t('Save') ?></button>
     </div>
-</form>
+</form>