Bug report

The Scheduler, configured to import/export to iCal file, exports invalid file in Firefox.

Reproduction of the problem

1. Open the Scheduler demo in Firefox - https://dojo.telerik.com/@martin.tabakov@progress.com/UtIqiTaC
2. Hit the Export to iCal button.
3. Try opening the file in Outlook.

Workaround - https://dojo.telerik.com/UjOVoYUT/2

Current behavior

The exported file is invalid and cannot be opened in Outlook or other apps

Expected/desired behavior

The exported file should be valid and be opened in Outlook.

Environment

• Kendo UI version: 2021.2.512
• Browser: [Firefox]