private static function sendDownloadHeaders($mimeType, $suggestedFilename, $size) {
		header('Content-Type: '.$mimeType, true);
		header('Content-Disposition: attachment; filename="'.$suggestedFilename.'"', true);
		header('Content-Length: '.$size, true);
		header('Accept-Ranges: none', true);
		header('Cache-Control: no-cache', true);
		header('Connection: close', true);
	}