Overwriting default action in Laravel 5.3 error handler

Handler.php

// Overwriting default action of render - Laravel 5.3

public function render($request, Exception $exception)
{

  ...

  if (! $this->isHttpException($exception) && ! config('app.debug')) {
          $exception = new \Symfony\Component\HttpKernel\Exception\HttpException(500);
      }

  return parent::render($request, $exception);

}

// Overwrite parent method (Laravel 5.3)

    /**
     * Render the given HttpException.
     *
     * @param  \Symfony\Component\HttpKernel\Exception\HttpException  $e
     * @return \Symfony\Component\HttpFoundation\Response
     */
    protected function renderHttpException(HttpException $e)
    {
        $status = $e->getStatusCode();

        if (view()->exists("errors.custom")) {
            return response()->view("errors.custom", ['exception' => $e], $status, $e->getHeaders());
        } else {
            return $this->convertExceptionToResponse($e);
        }
    }