title: Destory function issue GET request on firefox 20
body: <p>I have a strange bug where I issue a standard destroy function on a standard backbone Model but GET request is received on the server side instead of DELETE:</p>
  
  <p>The request code</p>
  
  <pre><code>var User = Backbone.Model.extend({
  idAttribute: "id",
  url: "/private/1.1/user/"
  })
  
  
  
  user = new User({"id":"ilya+1@test.com"})
  
  user.destroy()
  </code></pre>
  
  <p>I see it in firebug as a proper DELETE request</p>
  
  <pre><code>DELETE http://localhost:8080/private/1.1/user/
  </code></pre>
  
  <p>But when I fire up wireshark the actual request sent is GET rather than DELETE on firefox 20(on linux), on chrome this works as expected</p>