Differ between server side change and delete (trigger local remove -not change- of object was deleted on server side).

app/assets/javascripts/app/controllers/_application_controller_generic.coffee

@@ -1122,10 +1122,15 @@ class App.ObserverController extends App.Controller
         @maybeRender(object)
       )
 
-  subscribe: (object) =>
-    @maybeRender(object)
+  subscribe: (object, typeOfChange) =>
+    @maybeRender(object, typeOfChange)
+
+  maybeRender: (object, typeOfChange) =>
+    if typeOfChange is 'remove'
+      @release()
+      @el.remove()
+      return
 
-  maybeRender: (object) =>
     @log 'debug', 'maybeRender', @object_id, object, @model
 
     if !@subscribeId

app/assets/javascripts/app/controllers/ticket_zoom/article_actions.coffee

@@ -7,6 +7,7 @@ class App.TicketZoomArticleActions extends App.Controller
     'click [data-type=twitterStatusReply]':        'twitterStatusReply'
     'click [data-type=twitterDirectMessageReply]': 'twitterDirectMessageReply'
     'click [data-type=facebookFeedReply]':         'facebookFeedReply'
+    'click [data-type=delete]':                    'delete'
 
   constructor: ->
     super
@@ -150,6 +151,18 @@ class App.TicketZoomArticleActions extends App.Controller
       icon: 'split'
       href: '#ticket/create/' + article.ticket_id + '/' + article.id
     }
+
+    if article.type.name is 'note'
+      user = undefined
+      if App.Session.get('id') == article.created_by_id
+        user = App.User.find(App.Session.get('id'))
+        if user.permission('ticket.agent')
+          actions.push {
+            name: 'delete'
+            type: 'delete'
+            icon: 'trash'
+            href: '#'
+          }
     actions
 
   facebookFeedReply: (e) =>
@@ -355,6 +368,19 @@ class App.TicketZoomArticleActions extends App.Controller
 
     App.Event.trigger('ui::ticket::setArticleType', { ticket: @ticket, type: type, article: articleNew } )
 
+  delete: (e) =>
+    e.preventDefault()
+
+    callback = ->
+      article_id = $(e.target).parents('[data-id]').data('id')
+      article    = App.TicketArticle.find(article_id)
+      article.destroy()
+
+    new App.ControllerConfirm(
+      message: 'Sure?'
+      callback: callback
+      container: @el.closest('.content')
+    )
+
   scrollToCompose: =>
     @el.closest('.content').find('.article-add').ScrollTo()
-

app/assets/javascripts/app/controllers/ticket_zoom/article_view.coffee

@@ -12,7 +12,7 @@ class App.TicketZoomArticleView extends App.Controller
     all = []
     for ticket_article_id in @ticket_article_ids
       controllerKey = ticket_article_id.toString()
-      if !@articleController[controllerKey]
+      if !@articleController[controllerKey] && App.TicketArticle.exists(ticket_article_id)
         el = $('<div></div>')
         @articleController[controllerKey] = new ArticleViewItem(
           ticket:     @ticket

app/assets/javascripts/app/models/_application_model.coffee

@@ -440,7 +440,7 @@ class App.Model extends Spine.Model
       )
 
       # subscribe and render data after server change
-      events = "#{@className}:create #{@className}:update #{@className}:touch #{@className}:destroy"
+      events = "#{@className}:create #{@className}:update #{@className}:touch"
       App.Event.bind(
         events
         (item) =>
@@ -454,10 +454,23 @@ class App.Model extends Spine.Model
                 App.Log.debug('Model', "request #{@className}.find(#{item.id}) from server")
                 @full(item.id, false, true)
             App.Delay.set(callback, 500, item.id, "full-#{@className}-#{item.id}")
-
         "Item::Subscribe::#{@className}"
       )
 
+      events = "#{@className}:destroy"
+      App.Event.bind(
+        events
+        (item) =>
+          if @SUBSCRIPTION_ITEM && @SUBSCRIPTION_ITEM[ item.id ]
+            return if !App[ @className ].exists(item.id)
+            genericObject = App[ @className ].find(item.id)
+            App.Log.debug('Model', "server delete on #{@className}.find(#{item.id}) #{item.updated_at}")
+            callback = ->
+              genericObject.trigger('remove', genericObject)
+            App.Delay.set(callback, 500, item.id, "delete-#{@className}-#{item.id}")
+        "Item::SubscribeDelete::#{@className}"
+      )
+
     # remember item callback
     if !@SUBSCRIPTION_ITEM
       @SUBSCRIPTION_ITEM = {}