The link below references a Blob URL that links to a dynamically generated iCalendar file (vCalendar 2.0), constructed on the fly within this web page using the Blob constructor (new Blob(...)). It triggers a download to the system, invoking the underlying OS's default Calendar handler for iCalendar files. On Mac OS X, that is typically the Calendar application; on the latest version of Windows, depending on installation settings, that is Outlook 2013. In particular, this is to show that one of the requirements for the File API for triggering "Save As..." behavior is met indirectly, through the <a href="blob:21aa2662-95b7-7f4a-a170-08ff8b1ef40b" download="calendar.ics"...> mechanism.