Horizon on keystone token expiration

To understand keystone token expiration I did set token expiration time as 1 min( in keystone conf file) then logged into horizon(mitaka version). After 1 min, even i am browsing UI, horizon is redirected me to login page. Assuming this is expected behaviour as we set expiration as 1 min.

My query is:
How to auto renewal keystone token as log as horizon session is not expired(idle timeout).
I mean if user is browsing the UI and keystone token timed out , instead of redirecting to login page, is it possible renew keystone token similar to session timeout?