diff --git a/app/assets/javascripts/angularjs.js.coffee b/app/assets/javascripts/angularjs.js.coffee
index 4118e69..8e95b06 100644
--- a/app/assets/javascripts/angularjs.js.coffee
+++ b/app/assets/javascripts/angularjs.js.coffee
@@ -9,5 +9,5 @@
 
 @app.config(["$httpProvider", (provider) ->
     provider.defaults.headers.common['X-CSRF-Token'] = $('meta[name=csrf-token]').attr('content')
-    provider.defaults.headers.common['Accept'] = 'application/json'
+    provider.defaults.headers.common['X-Requested-With'] = 'XMLHttpRequest'
 ])
diff --git a/app/assets/javascripts/angularjs/comments.js.coffee b/app/assets/javascripts/angularjs/comments.js.coffee
index 9e134ff..ce78b8b 100644
--- a/app/assets/javascripts/angularjs/comments.js.coffee
+++ b/app/assets/javascripts/angularjs/comments.js.coffee
@@ -19,11 +19,13 @@
       else
         $scope.publish_success = false
         $scope.publish_fail_msg = res.message
-      $timeout ->
-        $scope.publish_success = null
-      , 3*1000
-    .error ->
-      alert('xx')
+    .error (data, status)->
+      $scope.publish_success = false
+      $scope.publish_fail_msg = '网络错误, 请重试, 错误码为: ' + status
     .finally ->
       $scope.submitting = false
+      $scope.timeout = $timeout ->
+        $timeout.cancel($scope.timeout)
+        $scope.publish_success = null
+      , 5*1000
 ]
diff --git a/app/views/blogs/_comment.html.slim b/app/views/blogs/_comment.html.slim
index b9a2eeb..8df20d5 100644
--- a/app/views/blogs/_comment.html.slim
+++ b/app/views/blogs/_comment.html.slim
@@ -1,4 +1,4 @@
-.row ng-controller="CommentsController"
+.row ng-controller="CommentsController" ng-cloak=""
   .small-12.large-9.large-centered.columns
     form novalidate='' name='form'
       .row
@@ -8,10 +8,10 @@
         .small-12.large-6.columns
           = text_field_tag(:name, nil, placeholder: '你的名字', 'ng-model'=> 'name', 'ng-required'=> 'true')
           = text_field_tag(:email, nil, placeholder: '你的邮箱', 'ng-model'=> 'email', 'ng-pattern'=>"/^.+@.+$/", 'ng-required'=>"true")
-      button.comment-submit ng-click="submit()" ng-disabled="form.$invalid || submitting" 发表
+      button.comment-submit ng-click="submit()" ng-disabled="form.$invalid || submitting" {{ submitting && '发表中' || '发表' }}
       p.comment-success ng-show="publish_success" 发布成功
       p.comment-fail ng-show="publish_success == false" 发布失败: {{ publish_fail_msg }}
-    .comment-diag ng-cloak=""
+    .comment-diag
       .comment-wrapper ng-repeat=" comment in comments "
         p.name
           |{{ comment.name + "  • " }}