Open Stack

I was posed this question, but am not familiar with Horizon or StackTach 
cookie management.      Anyone know what the issue might be?

Issue: Logging into one site logs you out of the other. (horizon/stacktach)

First I open horizon and notice there are two cookies: csrftoken 
(horizon) and sessionid. I log into Horizon, then open up a new tab and 
log into stacktach (same domain, different port). After logging into 
stacktach, there's another cookie created named 
beaker.session.stacktach.  I go back to the horizon dashboard and get 
logged off after clicking anything. After trying to log back in, this 
error comes up: "Your Web browser doesn't appear to have cookies 
enabled. Cookies are required for logging in." I then clear the cookies 
and am able to log in, but see this error message: "Forbidden (403) CSRF 
verification failed. Request aborted." I go back to the Horizon log in 
page, finally log in, go to stacktach tab and am logged out of that.

Note that stacktach is at a separate port on the controller and uses 
beaker to create the cookie session. I've read that cookies aren't 
port-speciic on the same domain name, but should still work with 
different cookie names.. I've also tried changing the paths on the 
stacktach urls, but no luck there either.