title: gData API - "This feed is read-only" error when adding to Google Calendar
body: <p>I'm using <strong>Google Apps for my domain</strong>, and trying to enable access to the calendar on my website. </p>
  
  <p>The problem is that I get <code>This feed is read-only</code> error every time I try to add an event to the calendar. Here's where I post to: <strike><a href="https://www.google.com/calendar/feeds/mydomain.com_oaiat5pq6l6dsfnmrodn8susvc@group.calendar.google.com/private/basic" rel="nofollow noreferrer">Link</a></strike> (dead link)</p>
  
  <p><img src="https://i.stack.imgur.com/8Xv76.jpg" alt="Screenshot of error"></p>