KC 19: FrontEndUrl and CookieNotFound

Configuring the server
1

Hi,

I am running kc19 with reverseproxy. The problem we are experiencing is:

  1. User logs in
  2. Gets cookie not found error.
  3. In admin console, we update realm → front end url to a domain value and it WORKS.
  4. User logs in and SUCCESS

Then we have similarly another realm where we dont have front end url setting configured, and for that realm we do not get cookie not found error and the user is able to log in.

At this point, I am clueless as to why setting the front end url for some realms work and for some we don’t have to. I understand that by setting front end url one can override the iss claim value in JWT token.

But not sure what the pattern is here as would have expected consistent behavior across.

Help would greatly be appreciated to understand the mysteries of “front end url” setting in realm for above scenario and in general.

Thank you