I have a very basic backbone (sample) application which just creates and destroys model items. When the model is created the object is persisted with a POST to the web server, but when the model is destroyed there is no DELETE sent to the server? Any idea why this might be?

very basic model:

window.User = Backbone.Model.extend({
  urlRoot: 'users'
});

my test code just to create and delete the model:

var model = null;

$(".add").click(function(){
  if (model == null) {
    model = new window.User;
    model.set({name: 'meeee'});
    model.save();
  }
});

$(".remove").click(function(){
  if (model != null) {
    model.destroy();
  }
});

The JSON response when creating the model seems good too: