[ical4j 4.x] Test with vivaldi.net #298

Activity

1. rfc2822

   added a parent issue on Apr 1, 2026

   • [ical4j 4.x] Test with all known test accounts #241
2. rfc2822

   added the

   Task

   issue type on Apr 1, 2026
3. sunkup

   self-assigned this

   on Apr 15, 2026
4. sunkup commented on Apr 15, 2026

   

   sunkup

   on Apr 15, 2026

   Member

   More actions

   • collection detection does not work / server sends 404. In our wiki there is a comment: "caldav completely broken"
5. cketti

   self-assigned this

   on Apr 15, 2026
6. cketti commented on Apr 15, 2026

   

   cketti

   on Apr 15, 2026

   Contributor

   More actions

   Worked for me when following these steps: https://help.vivaldi.com/services/webmail/web-calendar/#Sync_your_calendars_using_CalDAV

   Tested with an Android 13 emulator.

   • Event added on server syncs to device
   • Event added on device syncs to server
   • Event changed on server syncs to device
   • Event changed on device syncs to server
   • Event deleted on server syncs to device
   • Event deleted on device syncs to server
   • Recurring event with exception works fine when created/modified on device. Otherwise problematic; see [ical4j 4.x] Adding EXDATE to recurring event using UTC #328
   • Task added on device syncs to server
   • Task changed on device syncs to server
   • Task deleted on device syncs to server
7. cketti

   closed this as completedon Apr 15, 2026