public function create()
 {
     $this->response()->headers()->setContentType('text/javascript');
     $this->setLayout(false);
     if ($this->request()->isPost()) {
         if (current_user()->tag_subscriptions->size() >= CONFIG()->max_tag_subscriptions) {
             $this->tag_subscription = null;
         } else {
             $this->tag_subscription = TagSubscription::create(['user_id' => current_user()->id, 'tag_query' => '']);
         }
     }
 }