Events in Safari dont seem to work (Bug?)

Hi,

I have been trying to attach events to CKE 3. They seem to work in FF, but not in Safari.

I have added the following code to the replacebycode.html sample to test out what I'm doing:

CKEDITOR.replace( 'editor1' );
var editor = CKEDITOR.instances['editor1'];

if (editor) {
  console.log('Registering focus event')
  editor.on('focus', function(event) {
    console.log(event);
  });
}