public static function getStaticDataFileUrl( string $dataType, string $key = null, $locale = 'en_US', $version = null, string $fragment = null ): string
	{
		if (is_null($version))
			self::checkInit();

		return self::getCdnUrl() . ($version ?: self::getSetting(self::SET_VERSION)) . "/data/$locale/$dataType$key.json$fragment";
	}