public function serverResponse()
    {
        try
        {
            $this->generator->serverResponse();
        }
        catch(\Exception $exception)
        {
            // Handle server generating image response exception
            if($this->handleExceptions)
            {
                if(is_string($this->handleExceptions))
                {
                    Debugger::log($exception->getMessage(), $this->handleExceptions);
                }
                else
                {
                    Debugger::log($exception, 'palette');
                }
            }
            else
            {
                throw $exception;
            }

            // Return fallback image on exception if fallback image is configured
            $fallbackImage = $this->generator->getFallbackImage();

            if($fallbackImage)
            {
                $paletteQuery = preg_replace('/.*@(.*)/', $fallbackImage . '@$1', $_GET['imageQuery']);

                $picture  = $this->generator->loadPicture($paletteQuery);
                $savePath = $this->generator->getPath($picture);

                if(!file_exists($savePath))
                {
                    $picture->save($savePath);
                }

                $picture->output();
            }
        }
    }