dkahia

I think you need to confirm your calendar is accessible without authentication. It needs to be made public.

I added your url and it seems to connect fine. There are no holidays to test against until April. { "name": "Danish Holidays", "url": "webcal://ugenr.dk/ics/helligdage/dk.ics", "pollingInterval": 15, "sensors": [] }

OS | Ubuntu Focal Fossa (20.04.2 LTS) Node.js v14.16.0 Npm v6.14.11 HB 1.3.1