Logout Not Working in Mobile/Tablet Mode

[jcdelepine]

Logout not working in mobile/tablet mode (Horde / IMP)

Environment

• FRAMEWORK_6_0 (fresh GitHub checkout)

• Tested commits:

  • 8186a1c (full stack pull on Jun 15 00:23)
  • 54caefb (full stack pull on Jun 17 09:18)
  • not tested before 8186a1c

• Browsers: Firefox, Chromium

• Session storage: Redis enabled/disabled

Issue

Logout does not reliably terminate the session in mobile/tablet mode (responsive login mode).

Steps to reproduce

1. Open login page
2. Enable mobile/tablet mode
3. Log in to IMP
4. Click “Logout”

Actual behavior

• No logout
• Manual session cookie removal correctly logs user out

Expected behavior

Session must be fully destroyed on logout.

Notes

• Non-mobile mode works correctly
• Reproducible across browsers
• Independent of Redis session cache

[jcdelepine]

Mobile view is affected by my comment on horde/base#99, I get disconnected after 30 minutes of inactivity.
HORDE 2026-06-17T11:15:37+02:00 notice: Login success for delepine to horde (192.168.1.123)
HORDE 2026-06-17T11:45:45+02:00 notice: User delepine logged out of Horde (192.168.1.123)