Invalid cache cookie length?

[Bryan K. Walton]

What does "Invalid cache cookie length" mean in the cas debug logs?

For example:
[Mon Apr 09 16:17:29.340510 2018] [:debug] [pid 7828]
mod_auth_cas.c(897): [client xxx.xxx.xxx.xxx:64395] Invalid cache cookie
length for '', (expecting 32, got 0), referer:
https://<xxx'd out site>/uPortal/f/employee/normal/render.uP

Is this a problem with the cookie in our CASCookiePath? Or a problem
with a cookie in the end user's browser?

Thanks,
Bryan

[David Hawes]

It looks like the client sent an empty cookie. In that case I'd expect
a redirect to your CAS server to authenticate again.

It's definitely odd that the cookie is empty. Do you see this often?