https proxy not work

[zzxap]

my https backken is https://backken_domain/gw/fff is work
and https://gateway_domain/ is work

I add a route urlprefix-/gw proto=https dest host is backken'ip port is 80

but when I connect http://gateway_ip:9999/gw/fff or https://gateway_domain/gw/fff
it show
No route for gateway_ip:9999/gw/fff or No route for https://gateway_domain/gw/fff or 404

how can i add https route? how to make it work?

[zzxap]

it need listen a https port