title: Internet Explorer open outlook appointment javascript
body: <p>Go figure, I am having issues with IE and was hoping someone might be able to help....
  I have a site where visitors will come and sign up for a specific meeting and then I want to be able to generate an appointment for the calendar of their choice; the choices are gmail, yahoo, and outlook. The gmail and yahoo appointments are generated as expected in all browsers, but the outlook appointments work in every browser except IE. Instead of throwing a file save dialog, IE opens a new window and attempts to navigate the url. </p>
  
  <p>I am using the iCalendar jquery library that I modified a bit and building the ics markup in javascript, like this</p>
  
  <pre><code>//build ics markup
  var event = makeAppointment(settings);
  //render ics markup as outlook appointment
  window.open("data:text/calendar;charset=utf8," + escape(event));
  
  function makeAppointment()
  {
      return 'BEGIN:VCALENDAR\n' +
      'VERSION:2.0\n' +
      'PRODID:jquery.icalendar\n' +
      'METHOD:PUBLISH\n' +
      'BEGIN:VEVENT\n' +
      'UID:' + new Date().getTime() + '@' +
      (window.location.href.replace(/^[^\/]*\/\/([^\/]*)\/.*$/, '$1') || 'localhost')       + '\n' +
      'DTSTAMP:' + $.icalendar.formatDateTime(new Date()) + '\n' +
      (event.url ? limit75('URL:' + event.url) + '\n' : '') +
      (event.contact ? limit75('MAILTO:' + event.contact) + '\n' : '') +
      limit75('TITLE:' + event.title) + '\n' +
      'DTSTART:' + $.icalendar.formatDateTime(event.start) + '\n' +
      'DTEND:' + $.icalendar.formatDateTime(event.end) + '\n' +
      (event.summary ? limit75('SUMMARY:' + event.summary) + '\n' : '') +
      (event.description ? limit75('DESCRIPTION:' + event.description) + '\n' : '') +
      (event.location ? limit75('LOCATION:' + event.location) + '\n' : '') +
      (event.recurrence ? makeRecurrence(event.recurrence) + '\n' : '') +
      'END:VEVENT\n' +
      'END:VCALENDAR';
  }
  </code></pre>