eZ\Publish\Core\MVC\Symfony\Cache\Http\LocationAwareStore::generateContentDigest PHP Method

    protected function generateContentDigest(Response $response)
    {
        $digest = parent::generateContentDigest($response);
        if (!$response->headers->has('X-Location-Id')) {
            return $digest;
        }
        return static::LOCATION_CACHE_DIR . "/{$response->headers->get('X-Location-Id')}/{$digest}";
    }