Sometimes toast the message "you were logged out"

We have a problem with keeping user logged in.

  1. We connect discourse to our app with sso.
  2. Login Success and redirect to discourse
  3. click some board
  4. popup “you were logged out”

our guess are below
_forum_session value in Session storage keep changing when we click the board
So previous sessionkey, and new generated session key was not match sometime.

How to manage forum_session value? or How to control sequence of generating _forum_session?

What makes this popup out?

I don’t know what to provide to solve this problem. Don’t hesitate to ask me