Removed not needed render events.

app/assets/javascripts/app/controllers/taskbar_widget.coffee

@@ -99,7 +99,9 @@ class App.TaskbarWidget extends App.Controller
         active_is_closed = true
 
     # remove task
-    App.TaskManager.remove( key )
+    App.TaskManager.remove(key, false)
+
+    $(e.target).closest('.task').remove()
 
     # if we do not need to move to an other task
     return if !active_is_closed

app/assets/javascripts/app/lib/app_post/task_manager.coffee

@@ -24,10 +24,10 @@ class App.TaskManager
       _instance ?= new _taskManagerSingleton
     _instance.update( key, params )
 
-  @remove: ( key ) ->
+  @remove: (key, rerender = true) ->
     if _instance == undefined
       _instance ?= new _taskManagerSingleton
-    _instance.remove( key )
+    _instance.remove(key, rerender)
 
   @notify: ( key ) ->
     if _instance == undefined
@@ -77,17 +77,13 @@ class _taskManagerSingleton extends Spine.Module
     @tasksInitial()
 
     # render on login
-    App.Event.bind(
-      'auth:login'
-      =>
+    App.Event.bind('auth:login', =>
       @tasksInitial()
       'task'
     )
 
     # render on logout
-    App.Event.bind(
-      'auth:logout'
-      =>
+    App.Event.bind('auth:logout', =>
       @reset()
       'task'
     )
@@ -220,6 +216,7 @@ class _taskManagerSingleton extends Spine.Module
     # start worker for task if not exists
     @startController(params)
 
+    if !params.init
       App.Event.trigger 'task:render'
 
   startController: (params) =>
@@ -269,7 +266,6 @@ class _taskManagerSingleton extends Spine.Module
     # execute controllers show
     if controller.show
       controller.show(params_app)
-      App.Event.trigger('ui:rerender:task')
 
     true
 
@@ -306,7 +302,7 @@ class _taskManagerSingleton extends Spine.Module
     @taskUpdate(task)
 
   # remove task certain task from tasks
-  remove: ( key ) =>
+  remove: (key, rerender) =>
 
     # remember started task
     delete @tasksStarted[key]
@@ -327,6 +323,7 @@ class _taskManagerSingleton extends Spine.Module
     @release(key)
 
     # rerender taskbar
+    if rerender
       App.Event.trigger 'task:render'
 
     # destroy in backend storage

test/browser_test_helper.rb

@@ -964,8 +964,8 @@ wait untill text in selector disabppears
 =begin
 
   tasks_close_all(
-    :browser         => browser1,
-    :discard_changes => true,
+    browser: browser1,
+    discard_changes: true,
   )
 
 =end
@@ -980,11 +980,8 @@ wait untill text in selector disabppears
       begin
         if instance.find_elements( { css: '.navigation .tasks .task:first-child' } )[0]
           instance.mouse.move_to( instance.find_elements( { css: '.navigation .tasks .task:first-child' } )[0] )
-          sleep 0.2
-
           click_element = instance.find_elements( { css: '.navigation .tasks .task:first-child .js-close' } )[0]
           if click_element
-            sleep 0.1
             click_element.click
 
             # accept task close warning