https://git.openwrt.org/openwrt/openwrt.git/
root@iZk1a00chdq8niw6ja82v4Z:~# git clone https://git.openwrt.org/openwrt/openwrt.git/
Cloning into 'openwrt'...
fatal: unable to access 'https://git.openwrt.org/openwrt/openwrt.git/': Empty reply from server