diff --git a/KoKo/Danbooru.fs b/KoKo/Danbooru.fs
index 217f151..c16c43e 100644
--- a/KoKo/Danbooru.fs
+++ b/KoKo/Danbooru.fs
@@ -29,7 +29,7 @@ type DanbooruSpider (name, domain) =
                             retry <- retry - 1
                             System.Threading.Thread.Sleep 5000
                     result)
-                |> Utils.takeWhileTimes 5 (function
+                |> Utils.takeWhileTimes 3 (function
                 | Ok x when x.Posts.Length > 0 -> true
                 | _ -> false)
                 |> Seq.choose (function
diff --git a/KoKo/Konachan.fs b/KoKo/Konachan.fs
index ef7ba25..b832b6a 100644
--- a/KoKo/Konachan.fs
+++ b/KoKo/Konachan.fs
@@ -59,7 +59,7 @@ type KonachanSpider (args: SpiderArguments) =
             let head = Seq.head pages
             let pages = Seq.append [head] <| Seq.tail pages
             pages
-            |> Utils.takeWhileTimes 5 (function
+            |> Utils.takeWhileTimes 3 (function
             | Ok x when x.Posts.Length > 0 -> true
             | _ -> false)
             |> Seq.choose (function
diff --git a/KoKo/SankakuComplex.fs b/KoKo/SankakuComplex.fs
index 5095f08..fd6ef7e 100644
--- a/KoKo/SankakuComplex.fs
+++ b/KoKo/SankakuComplex.fs
@@ -27,7 +27,7 @@ type SankakuComplex () =
                             retry <- retry - 1
                             System.Threading.Thread.Sleep 5000
                     result)
-                |> Utils.takeWhileTimes 5 (function
+                |> Utils.takeWhileTimes 3 (function
                 | Ok x when x.Length > 0 -> true
                 | _ -> false)
                 |> Seq.choose (function
diff --git a/KoKoViewer/BrowsePage.xaml.cs b/KoKoViewer/BrowsePage.xaml.cs
index 86ba383..3b47583 100644
--- a/KoKoViewer/BrowsePage.xaml.cs
+++ b/KoKoViewer/BrowsePage.xaml.cs
@@ -207,28 +207,50 @@ from post in Browser.SelectedItems
 
         private void Image_ImageOpened(object sender, RoutedEventArgs e)
         {
-            var image = sender as Image;
-            var post = image.Tag as KoKo.Post;
-
-            var parent = (image.Parent as Grid);
-            var stackPanel = parent.Children
-                .Where(item => null != item as StackPanel)
-                .First() as StackPanel;
-                
-
-            if (FavoritesData.Get().Has(post.fromSpider.Name, post.id))
-                (stackPanel.FindName("Info_Fav") as SymbolIcon).Visibility = Visibility.Visible;
-
-            if (DownloadHelper.GetDownloaded(post) != null)
-                (stackPanel.FindName("Info_Downloaded") as SymbolIcon).Visibility = Visibility.Visible;
-
-            var imageName = post.images.First().First().fileName.ToLower().Trim();
-
-            if (imageName.EndsWith(".gif"))
-                (stackPanel.FindName("Info_GIF") as SymbolIcon).Visibility = Visibility.Visible;
+            try
+            {
+                var image = sender as Image;
+                var post = image.Tag as KoKo.Post;
 
-            else if (imageName.EndsWith(".mp4") || imageName.EndsWith(".webm"))
-                (stackPanel.FindName("Info_Video") as SymbolIcon).Visibility = Visibility.Visible; ;
+                DependencyObject parent = VisualTreeHelper.GetParent(image);
+                for (int i = 0; i < VisualTreeHelper.GetChildrenCount(parent); ++i)
+                {
+                    DependencyObject obj = VisualTreeHelper.GetChild(parent, i);
+                    if (obj is StackPanel)
+                    {
+                        var stackPanel = (obj as StackPanel);
+                        if (stackPanel.Name == "InformationDisplay")
+                        {
+                            try
+                            {
+                                if (FavoritesData.Get().Has(post.fromSpider.Name, post.id))
+                                    (stackPanel.FindName("Info_Fav") as SymbolIcon).Visibility = Visibility.Visible;
+                            }
+                            catch (Exception) { }
+
+                            try
+                            {
+                                if (DownloadHelper.GetDownloaded(post) != null)
+                                    (stackPanel.FindName("Info_Downloaded") as SymbolIcon).Visibility = Visibility.Visible;
+                            }
+                            catch (Exception) { }
+
+                            try
+                            {
+                                var imageName = post.images.First().First().fileName.ToLower().Trim();
+
+                                if (imageName.EndsWith(".gif"))
+                                    (stackPanel.FindName("Info_GIF") as SymbolIcon).Visibility = Visibility.Visible;
+
+                                else if (imageName.EndsWith(".mp4") || imageName.EndsWith(".webm"))
+                                    (stackPanel.FindName("Info_Video") as SymbolIcon).Visibility = Visibility.Visible;
+                            }
+                            catch (Exception) { }
+                        }
+                    }
+                }
+            }
+            catch (Exception) { }
         }
     }
 }
diff --git a/KoKoViewer/Package.appxmanifest b/KoKoViewer/Package.appxmanifest
index 8b2c5b1..b4f662e 100644
--- a/KoKoViewer/Package.appxmanifest
+++ b/KoKoViewer/Package.appxmanifest
@@ -9,7 +9,7 @@
   <Identity
     Name="609b4b8f-a84f-4111-b119-af0006ce93d6"
     Publisher="CN=KoKo"
-    Version="0.2.9.0" />
+    Version="0.3.0.0" />
 
   <mp:PhoneIdentity PhoneProductId="609b4b8f-a84f-4111-b119-af0006ce93d6" PhonePublisherId="00000000-0000-0000-0000-000000000000"/>
 
diff --git a/README.md b/README.md
index bfe330f..eb92c95 100644
--- a/README.md
+++ b/README.md
@@ -36,6 +36,7 @@ Anime wallpaper downloader.
 * Spider输出内容改为Result，以将错误信息报告给GUI.
 * More Spiders.
 * KoKo.Viewer支持搜索时常用关键字补全。
+* KoKo.Viewer支持查看历史记录。
 
 ## KoKoViewer
 KoKoViewer是KoKo的使用UWP的GUI实现，提供了基本的浏览功能。