Get a CALDAV link direct to account .ics file rather than a script to download it

As a cPanel user, I would like to have a direct access .ics file URL in Roundcube similar to the direct URL provided by Google Calendar so I can use services like Weavium Kalendar plugin to import my calendar directly.

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It would be really useful to get a URL to gain direct access to an account calendar .ics file in the same manner that is possible with Google calendars, e.g.

https://calendar.google.com/calendar/ical/pa4c3h6m3ktpvp65jrld6g5qf0%40group.calendar.google.com/public/basic.ics

I have found that a URL is available via Roundcube interface ("show calendar URL") but this appears to trigger a script that then downloads the file rather than a link to the file itself. Here's the Roundcube/cPanel link to a calendar I want to access via an app:

https://cloud101.certahosting.co.uk:2096/cpsess8189840069/3rdparty/roundcube/?_task=calendar&_cal=Y29udGFjdEBiYXZoLmNvLnVrOjc%3D.ics&_action=feed

Some applications (such as the Weavium Kalendar plugin I use) require the Google style direct URL like the first one above and don't work with the Roundcube generated link.

Is it possible to either modify the generated URL as delivered currently to link to the file or could this feature be added?