[horde] CalDAV & CardDAV when using LDAP for authorization?

[4tybf3kvvj at snkmail.com]

All,

If I am using LDAP as my authentication for Horde, should CalDAV & CardDAV functionality work?  I can log into Horde's webgui with my LDAP user/pass , but when I setup my CalDAV client (and use the LDAP login/password) it returns an error "encountered HTTP error 404. Make sure the URL is correct."

Horde debug log (set to DEBUG) doesn't show any failures (shown below):

2018-08-21T21:08:40+00:00 DEBUG: HORDE Max memory usage: 2097152 bytes [pid 2405 on line 613 of "/usr/share/php/Horde/Registry.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Load config file (conf.php; app: horde) [pid 2404 on line 109 of "/usr/share/php/Horde/Registry/Loadconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Setting sam inactive because the fileroot does not exist or the application is not configured yet. [pid 2404 on line 139 of "/usr/share/php/Horde/Registry/Registryconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Setting ansel inactive because the fileroot does not exist or the application is not configured yet. [pid 2404 on line 139 of "/usr/share/php/Horde/Registry/Registryconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Setting wicked inactive because the fileroot does not exist or the application is not configured yet. [pid 2404 on line 139 of "/usr/share/php/Horde/Registry/Registryconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Setting chora inactive because the fileroot does not exist or the application is not configured yet. [pid 2404 on line 139 of "/usr/share/php/Horde/Registry/Registryconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Setting whups inactive because the fileroot does not exist or the application is not configured yet. [pid 2404 on line 139 of "/usr/share/php/Horde/Registry/Registryconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Setting luxor inactive because the fileroot does not exist or the application is not configured yet. [pid 2404 on line 139 of "/usr/share/php/Horde/Registry/Registryconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Setting klutz inactive because the fileroot does not exist or the application is not configured yet. [pid 2404 on line 139 of "/usr/share/php/Horde/Registry/Registryconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Setting jonah inactive because the fileroot does not exist or the application is not configured yet. [pid 2404 on line 139 of "/usr/share/php/Horde/Registry/Registryconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Setting hermes inactive because the fileroot does not exist or the application is not configured yet. [pid 2404 on line 139 of "/usr/share/php/Horde/Registry/Registryconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Setting sesha inactive because the fileroot does not exist or the application is not configured yet. [pid 2404 on line 139 of "/usr/share/php/Horde/Registry/Registryconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Setting kolab inactive because the fileroot does not exist or the application is not configured yet. [pid 2404 on line 139 of "/usr/share/php/Horde/Registry/Registryconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Setting passwd inactive because the fileroot does not exist or the application is not configured yet. [pid 2404 on line 139 of "/usr/share/php/Horde/Registry/Registryconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Setting agora inactive because the fileroot does not exist or the application is not configured yet. [pid 2404 on line 139 of "/usr/share/php/Horde/Registry/Registryconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Setting ulaform inactive because the fileroot does not exist or the application is not configured yet. [pid 2404 on line 139 of "/usr/share/php/Horde/Registry/Registryconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Setting vilma inactive because the fileroot does not exist or the application is not configured yet. [pid 2404 on line 139 of "/usr/share/php/Horde/Registry/Registryconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Load config file (nls.php; app: horde) [pid 2404 on line 109 of "/usr/share/php/Horde/Registry/Loadconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE Load config file (hooks.php; app: imp) [pid 2404 on line 109 of "/usr/share/php/Horde/Registry/Loadconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE [imp] Load config file (conf.php; app: imp) [pid 2404 on line 109 of "/usr/share/php/Horde/Registry/Loadconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE [imp] Load config file (backends.php; app: imp) [pid 2404 on line 109 of "/usr/share/php/Horde/Registry/Loadconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE [gollem] Load config file (conf.php; app: gollem) [pid 2404 on line 109 of "/usr/share/php/Horde/Registry/Loadconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE [gollem] Load config file (backends.php; app: gollem) [pid 2404 on line 109 of "/usr/share/php/Horde/Registry/Loadconfig.php"]
2018-08-21T21:08:40+00:00 DEBUG: HORDE [horde] Load config file (prefs.php; app: horde) [pid 2404 on line 109 of "/usr/share/php/Horde/Registry/Loadconfig.php"]
2018-08-21T21:08:41+00:00 DEBUG: HORDE [horde] Load config file (motd.php; app: horde) [pid 2404 on line 109 of "/usr/share/php/Horde/Registry/Loadconfig.php"]
2018-08-21T21:08:41+00:00 DEBUG: HORDE [horde] Max memory usage: 2097152 bytes [pid 2404 on line 613 of "/usr/share/php/Horde/Registry.php"]
2018-08-21T21:08:48+00:00 DEBUG: HORDE Load config file (conf.php; app: horde) [pid 2405 on line 109 of "/usr/share/php/Horde/Registry/Loadconfig.php"]
2018-08-21T21:08:48+00:00 DEBUG: HORDE [kronolith] Load config file (conf.php; app: kronolith) [pid 2405 on line 109 of "/usr/share/php/Horde/Registry/Loadconfig.php"]
2018-08-21T21:08:48+00:00 DEBUG: HORDE [nag] Load config file (conf.php; app: nag) [pid 2405 on line 109 of "/usr/share/php/Horde/Registry/Loadconfig.php"]
2018-08-21T21:08:48+00:00 DEBUG: HORDE [nag] Horde_Prefs: Storing preference value (display_tasklists) [pid 2405 on line 994 of "/var/www/horde/nag/lib/Nag.php"]
2018-08-21T21:08:48+00:00 DEBUG: HORDE [kronolith] Horde_Prefs: Storing preference value (display_external_cals) [pid 2405 on line 532 of "/var/www/horde/kronolith/lib/CalendarsManager.php"]
2018-08-21T21:08:48+00:00 DEBUG: HORDE [kronolith] Max memory usage: 2097152 bytes [pid 2405 on line 613 of "/usr/share/php/Horde/Registry.php"]