// mime type · text type
text/calendar
iCalendar · .ics
What text/calendar is
text/calendar is the iCalendar format (.ics) used to share events. Sending it with a download prompt lets a user add an event straight to their calendar app.
How it's used
You'll see this as a Content-Type value on requests and responses — for example Content-Type: text/calendar. It's the type associated with the .ics file extension. Text types are human-readable formats. On the web they're assumed to be UTF-8, and browsers can display them directly.