diff --git a/app/assets/javascripts/app/controllers/_application_controller.coffee b/app/assets/javascripts/app/controllers/_application_controller.coffee
index b560b78c1..9f4df144b 100644
--- a/app/assets/javascripts/app/controllers/_application_controller.coffee
+++ b/app/assets/javascripts/app/controllers/_application_controller.coffee
@@ -10,7 +10,7 @@ class App.Controller extends Spine.Controller
     super
 
     # generate controllerId
-    @controllerId = 'controller-' + new Date().getTime() + '-' + Math.floor( Math.random() * 999999 )
+    @controllerId = 'controller-' + new Date().getTime() + '-' + Math.floor(Math.random() * 999999)
 
     # apply to release controller on dom remove
     @el.on('remove', @releaseController)
@@ -84,7 +84,7 @@ class App.Controller extends Spine.Controller
 
   # add @title methode to set title
   title: (name, translate = false) ->
-#    $('html head title').html( @Config.get(product_name) + ' - ' + App.i18n.translateInline(name) )
+#    $('html head title').html(@Config.get(product_name) + ' - ' + App.i18n.translateInline(name))
     title = name
     if translate
       title = App.i18n.translatePlain(name)
@@ -92,9 +92,9 @@ class App.Controller extends Spine.Controller
 
   copyToClipboard: (text) ->
     if window.clipboardData # IE
-      window.clipboardData.setData( 'Text', text )
+      window.clipboardData.setData('Text', text)
     else
-      window.prompt( 'Copy to clipboard: Ctrl+C, Enter', text )
+      window.prompt('Copy to clipboard: Ctrl+C, Enter', text)
 
   # disable all delay's and interval's
   disconnectClient: ->
@@ -238,11 +238,11 @@ class App.Controller extends Spine.Controller
         currentVal = item.text()
         ui.frontendTimeUpdateItem(item, currentVal)
       )
-    App.Interval.set( update, 61000, 'frontendTimeUpdate', 'ui' )
+    App.Interval.set(update, 61000, 'frontendTimeUpdate', 'ui')
 
   frontendTimeUpdateItem: (item, currentVal) =>
     timestamp = item.data('time')
-    time      = @humanTime( timestamp, item.hasClass('escalation') )
+    time      = @humanTime(timestamp, item.hasClass('escalation'))
 
     # only do dom updates on changes
     return if time is currentVal
diff --git a/app/assets/javascripts/app/controllers/ticket_zoom.coffee b/app/assets/javascripts/app/controllers/ticket_zoom.coffee
index 8713e705c..35600e41b 100644
--- a/app/assets/javascripts/app/controllers/ticket_zoom.coffee
+++ b/app/assets/javascripts/app/controllers/ticket_zoom.coffee
@@ -126,10 +126,11 @@ class App.TicketZoom extends App.Controller
 
   changed: =>
     return false if !@ticket
-    formCurrent = @formParam( @el.find('.edit') )
-    ticket      = App.Ticket.find(@ticket_id).attributes()
-    modelDiff   = App.Utils.formDiff(formCurrent, ticket)
+    currentParams = @formCurrent()
+    currentStore = @currentStore()
+    modelDiff = @formDiff(currentParams, currentStore)
     return false if !modelDiff || _.isEmpty(modelDiff)
+    return false if _.isEmpty(modelDiff.ticket) && _.isEmpty(modelDiff.article)
     return true
 
   release: =>
@@ -412,51 +413,62 @@ class App.TicketZoom extends App.Controller
     if !@autosaveLast
       @autosaveLast = @taskGet()
     update = =>
-      #console.log('AR', @ticket_id, @ticket, @formParam( @el.find('.article-add') ) )
       return if !@ticket
-      currentStoreTicket = @ticket.attributes()
-      delete currentStoreTicket.article
-      currentStore  =
-        ticket:  currentStoreTicket
-        article:
-          to:          ''
-          cc:          ''
-          type:        'note'
-          body:        ''
-          internal:    ''
-          in_reply_to: ''
-      currentParams =
-        ticket:  @formParam( @el.find('.edit') )
-        article: @formParam( @el.find('.article-add') )
+      currentParams = @formCurrent()
 
-      # add attachments if exist
-      attachmentCount = @$('.article-add .textBubble .attachments .attachment').length
-      if attachmentCount > 0
-        currentParams.article.attachments = true
-      else
-        delete currentParams.article.attachments
+      # check changed between last autosave
+      sameAsLastSave = _.isEqual(currentParams, @autosaveLast)
+      return if sameAsLastSave
+      @autosaveLast = clone(currentParams)
 
-      #console.log('lll', currentStore)
-      # remove not needed attributes
-      delete currentParams.article.form_id
+      # update changes in ui
+      currentStore = @currentStore()
+      modelDiff = @formDiff(currentParams, currentStore)
+      @markFormDiff(modelDiff)
+      @taskUpdateAll(modelDiff)
 
-      # get diff of model
-      modelDiff =
-        ticket:  App.Utils.formDiff( currentParams.ticket, currentStore.ticket )
-        article: App.Utils.formDiff( currentParams.article, currentStore.article )
-      #console.log('modelDiff', modelDiff)
-
-      # get diff of last save
-      changedBetweenLastSave = _.isEqual(currentParams, @autosaveLast)
-      if !changedBetweenLastSave
-        #console.log('model DIFF ', modelDiff)
-
-        @autosaveLast = clone(currentParams)
-        @markFormDiff(modelDiff)
-
-        @taskUpdateAll(modelDiff)
     @interval(update, 2800, 'autosave')
 
+  currentStore: =>
+    return if !@ticket
+    currentStoreTicket = @ticket.attributes()
+    delete currentStoreTicket.article
+    currentStore  =
+      ticket:  currentStoreTicket
+      article:
+        to:          ''
+        cc:          ''
+        type:        'note'
+        body:        ''
+        internal:    ''
+        in_reply_to: ''
+    currentStore
+
+  formCurrent: =>
+    currentParams =
+      ticket:  @formParam(@el.find('.edit'))
+      article: @formParam(@el.find('.article-add'))
+
+    # add attachments if exist
+    attachmentCount = @$('.article-add .textBubble .attachments .attachment').length
+    if attachmentCount > 0
+      currentParams.article.attachments = true
+    else
+      delete currentParams.article.attachments
+
+    # remove not needed attributes
+    delete currentParams.article.form_id
+    currentParams
+
+  formDiff: (currentParams, currentStore) ->
+
+    # get diff of model
+    modelDiff =
+      ticket:  App.Utils.formDiff(currentParams.ticket, currentStore.ticket)
+      article: App.Utils.formDiff(currentParams.article, currentStore.article)
+
+    modelDiff
+
   markFormDiff: (diff = {}) =>
     ticketForm    = @$('.edit')
     ticketSidebar = @$('.tabsSidebar-tab[data-tab="ticket"]')
diff --git a/app/assets/javascripts/app/controllers/widget/online_notification.coffee b/app/assets/javascripts/app/controllers/widget/online_notification.coffee
index d70387248..5fdb749f3 100644
--- a/app/assets/javascripts/app/controllers/widget/online_notification.coffee
+++ b/app/assets/javascripts/app/controllers/widget/online_notification.coffee
@@ -98,10 +98,10 @@ class App.OnlineNotificationWidget extends App.Controller
 
   counterUpdate: (count) =>
     if !count
-      @el.find('.js-counter').text('')
+      @$('.js-counter').text('')
       return
 
-    @el.find('.js-counter').text(count)
+    @$('.js-counter').text(count)
 
   markAllAsRead: =>
     @counterUpdate(0)
@@ -109,7 +109,7 @@ class App.OnlineNotificationWidget extends App.Controller
       id:   'markAllAsRead'
       type: 'POST'
       url:  @apiPath + '/online_notifications/mark_all_as_read'
-      data: JSON.stringify( '' )
+      data: JSON.stringify('')
       processData: true
     )
 
@@ -170,7 +170,7 @@ class App.OnlineNotificationWidget extends App.Controller
 
     # update title
     $('.js-notificationsContainer .popover-title').html(
-      App.i18n.translateInline( 'Notifications' ) + " <span class='popover-notificationsCounter'>#{counter}</span>"
+      App.i18n.translateInline('Notifications') + " <span class='popover-notificationsCounter'>#{counter}</span>"
     )
 
     # show mark all as read if needed
diff --git a/test/browser/agent_ticket_actions_level0_test.rb b/test/browser/agent_ticket_actions_level0_test.rb
index 39ca9e073..3abc0443e 100644
--- a/test/browser/agent_ticket_actions_level0_test.rb
+++ b/test/browser/agent_ticket_actions_level0_test.rb
@@ -53,7 +53,7 @@ class AgentTicketActionLevel0Test < TestCase
       css: '.active div[data-name=body]',
       value: 'some content' + random,
     )
-    tasks_close_all( discard_changes: true )
+    tasks_close_all()
 
     # test with two browser windows
     random = 'text_II_module_test_' + rand(99_999_999).to_s
diff --git a/test/browser/agent_ticket_actions_level2_test.rb b/test/browser/agent_ticket_actions_level2_test.rb
index 0f162aec5..8e5063bf9 100644
--- a/test/browser/agent_ticket_actions_level2_test.rb
+++ b/test/browser/agent_ticket_actions_level2_test.rb
@@ -13,7 +13,7 @@ class AgentTicketActionsLevel2Test < TestCase
       password: 'test',
       url: browser_url,
     )
-    tasks_close_all( browser: browser1 )
+    tasks_close_all(browser: browser1)
 
     browser2 = browser_instance
     login(
@@ -22,7 +22,7 @@ class AgentTicketActionsLevel2Test < TestCase
       password: 'test',
       url: browser_url,
     )
-    tasks_close_all( browser: browser2 )
+    tasks_close_all(browser: browser2)
 
     # create ticket
     ticket1 = ticket_create(
diff --git a/test/browser/agent_ticket_actions_level3_test.rb b/test/browser/agent_ticket_actions_level3_test.rb
index a421e9d88..3552974f3 100644
--- a/test/browser/agent_ticket_actions_level3_test.rb
+++ b/test/browser/agent_ticket_actions_level3_test.rb
@@ -2,6 +2,57 @@
 require 'browser_test_helper'
 
 class AgentTicketActionsLevel3Test < TestCase
+  def test_check_changes
+    @browser = browser_instance
+    login(
+      username: 'agent1@example.com',
+      password: 'test',
+      url: browser_url,
+    )
+    tasks_close_all()
+
+    # confirm on create
+    ticket_create(
+      data: {
+        customer: 'nico',
+        group: 'Users',
+        title: 'some changes',
+        body: 'some body 123äöü - changes',
+      },
+      do_not_submit: true,
+    )
+    close_task(
+      data: {
+        title: 'some changes',
+      },
+      discard_changes: true,
+    )
+    sleep 1
+
+    # confirm on zoom
+    ticket1 = ticket_create(
+      data: {
+        customer: 'nico',
+        group: 'Users',
+        title: 'some changes',
+        body: 'some body 123äöü - changes',
+      },
+    )
+    ticket_update(
+      data: {
+        body: 'some note',
+      },
+      do_not_submit: true,
+    )
+    close_task(
+      data: {
+        title: 'some changes',
+      },
+      discard_changes: true,
+    )
+
+  end
+
   def test_work_with_two_browser_on_same_ticket_edit
 
     browser1 = browser_instance
@@ -11,7 +62,7 @@ class AgentTicketActionsLevel3Test < TestCase
       password: 'test',
       url: browser_url,
     )
-    tasks_close_all( browser: browser1 )
+    tasks_close_all(browser: browser1)
 
     browser2 = browser_instance
     login(
@@ -20,7 +71,7 @@ class AgentTicketActionsLevel3Test < TestCase
       password: 'test',
       url: browser_url,
     )
-    tasks_close_all( browser: browser2 )
+    tasks_close_all(browser: browser2)
 
     # create ticket
     ticket1 = ticket_create(
@@ -52,6 +103,13 @@ class AgentTicketActionsLevel3Test < TestCase
       },
       do_not_submit: true,
     )
+    sleep 6
+    watch_for(
+      browser: browser1,
+      css: '.content.active .js-reset',
+      value: '(Discard your unsaved changes.|Verwerfen der)',
+      no_quote: true,
+    )
 
     # update ticket in instance 2
     ticket_update(
@@ -61,6 +119,13 @@ class AgentTicketActionsLevel3Test < TestCase
       },
       do_not_submit: true,
     )
+    sleep 6
+    watch_for(
+      browser: browser2,
+      css: '.content.active .js-reset',
+      value: '(Discard your unsaved changes.|Verwerfen der)',
+      no_quote: true,
+    )
 
     click(
       browser: browser2,
diff --git a/test/browser/agent_ticket_overview_level1_test.rb b/test/browser/agent_ticket_overview_level1_test.rb
index a98a6c34d..fbabbebc7 100644
--- a/test/browser/agent_ticket_overview_level1_test.rb
+++ b/test/browser/agent_ticket_overview_level1_test.rb
@@ -13,7 +13,7 @@ class AgentTicketOverviewLevel1Test < TestCase
       password: 'test',
       url: browser_url,
     )
-    tasks_close_all( browser: browser1 )
+    tasks_close_all(browser: browser1)
 
     browser2 = browser_instance
     login(
@@ -22,7 +22,7 @@ class AgentTicketOverviewLevel1Test < TestCase
       password: 'test',
       url: browser_url,
     )
-    tasks_close_all( browser: browser2 )
+    tasks_close_all(browser: browser2)
 
     # create new overview
     overview_create(
diff --git a/test/browser/agent_user_manage_test.rb b/test/browser/agent_user_manage_test.rb
index 82521be00..c6a2ad9c1 100644
--- a/test/browser/agent_user_manage_test.rb
+++ b/test/browser/agent_user_manage_test.rb
@@ -73,7 +73,7 @@ class AgentUserManageTest < TestCase
     sleep 4
 
     # call new ticket screen again
-    tasks_close_all( discard_changes: 1 )
+    tasks_close_all()
 
     click( css: 'a[href="#new"]' )
     click( css: 'a[href="#ticket/create"]' )
diff --git a/test/browser_test_helper.rb b/test/browser_test_helper.rb
index 6a49a6266..b4053376c 100644
--- a/test/browser_test_helper.rb
+++ b/test/browser_test_helper.rb
@@ -933,7 +933,7 @@ class TestCase < Test::Unit::TestCase
 
 =end
 
-  def open_task(params = {}, _fallback = false)
+  def open_task(params = {})
     switch_window_focus(params)
     log('open_task', params)
 
@@ -949,6 +949,44 @@ class TestCase < Test::Unit::TestCase
     true
   end
 
+=begin
+
+  close_task(
+    browser: browser1,
+    data: {
+      title: 'some title',
+    },
+    discard_changes: true,
+  )
+
+=end
+
+  def close_task(params = {})
+    switch_window_focus(params)
+    log('close_task', params)
+
+    instance = params[:browser] || @browser
+    data     = params[:data]
+
+    element = instance.find_elements(partial_link_text: data[:title])[0]
+    if !element
+      screenshot(browser: instance, comment: 'close_task_failed')
+      fail "no task with title '#{data[:title]}' found"
+    end
+
+    instance.mouse.move_to(element)
+    sleep 0.1
+    instance.execute_script("$('.navigation .tasks .task:contains(\"#{data[:title]}\") .js-close').click()")
+
+    # accept task close warning
+    if params[:discard_changes]
+      sleep 1
+      instance.find_elements(css: '.modal button.js-submit')[0].click
+    end
+
+    true
+  end
+
 =begin
 
   file_upload(
@@ -1122,7 +1160,6 @@ wait untill text in selector disabppears
 
   tasks_close_all(
     browser: browser1,
-    discard_changes: true,
   )
 
 =end
@@ -1144,8 +1181,8 @@ wait untill text in selector disabppears
             click_element.click
 
             # accept task close warning
-            if params[:discard_changes]
-              sleep 1
+            if instance.find_elements(css: '.modal button.js-submit')[0]
+              sleep 0.5
               instance.find_elements(css: '.modal button.js-submit')[0].click
             end
           end