title: Triggering an event handler on an element inside iframe from parent frame
body: <p>I have a html page. Inside it I use jQuery to attach click event on a link. Then I use iframe to reference this html page from another page. However I could not trigger the event attached on that link with js (when I click the link with the mouse, the event gets triggered with no problem). How can I trigger that event from parent frame? I have tried the following but it does not work:</p>
  
  <pre><code>var frame = $('#mainFrame'); // the iframe I am trying to access
  var link = $('a.btn', frame.contents()); // the element is found correctly
  link.trigger('click');  // nothing happens. 
  var e = link.data('events');  // e is undefined. 
  </code></pre>