refactor(download): try to use nsf.url() first
refactor(download): try to use nsf.url() first

limianwang/cnpmjs.org,chinakids/cnpmjs.org,marvinlee/cnpmjs.org,limianwang/cnpmjs.org,irachex/cnpmjs.org,yufi113/cnpmjs.org,yufi113/cnpmjs.org,irachex/cnpmjs.org,marvinlee/cnpmjs.org,chinakids/cnpmjs.org,irachex/cnpmjs.org,limianwang/cnpmjs.org,marvinlee/cnpmjs.org,yufi113/cnpmjs.org,chinakids/cnpmjs.org