StorageController::sendJsonResponse

protected function sendJsonResponse($response, $params = null)
{
	if(!$this->ignoreQuotaError() && $this->isQuotaError())
	{
		parent::sendJsonResponse(array(
			'status' => static::STATUS_NO_SPACE,
		));
	}

	$detail = array();
	$errors = $this->getErrors();
	if($this->storage)
	{
		$errors = array_merge($errors, $this->storage->getErrors());
	}
	$this->appendLastErrorToErrorCollection();
	//may be duplicate rows
	foreach($errors as $error)
	{
		/** @var Error $error */
		$detail[] = array(
			'message' => str_replace('\', '/', $error->getMessage()),
			'code' => $error->getCode(),
		);
	}


	if($detail)
	{
		$response['detail'] = $detail;
	}

	header("X-Bitrix-Disk-API: " . self::VERSION);

	parent::sendJsonResponse($response, $params);
}