balancer_by_lua work with ssl upstream?

[jils2013]

we are using balancer_by_lua,it's easier than cosocket,now we need prxoy to ssl upstream(s)(load key/certs on our demands);

ssl_certificate_by works with downstream,and get some issues like,using ngx.location.capture:
openresty/lua-nginx-module#178 (comment)

any advice for us?