diff --git a/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/WebAssembly/AbpBlazorClientHttpMessageHandler.cs b/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/WebAssembly/AbpBlazorClientHttpMessageHandler.cs
index fcdf065943..7b40ca5286 100644
--- a/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/WebAssembly/AbpBlazorClientHttpMessageHandler.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/WebAssembly/AbpBlazorClientHttpMessageHandler.cs
@@ -51,10 +51,6 @@ namespace Volo.Abp.AspNetCore.Components.WebAssembly
 
                 return await base.SendAsync(request, cancellationToken);
             }
-            catch (Exception)
-            {
-                throw;
-            }
             finally
             {
                 await _uiPageProgressService.Go(-1);
diff --git a/framework/src/Volo.Abp.BlazoriseUI/AbpCrudPageBase.cs b/framework/src/Volo.Abp.BlazoriseUI/AbpCrudPageBase.cs
index 2ec9e8a090..10c421fb6e 100644
--- a/framework/src/Volo.Abp.BlazoriseUI/AbpCrudPageBase.cs
+++ b/framework/src/Volo.Abp.BlazoriseUI/AbpCrudPageBase.cs
@@ -8,16 +8,12 @@ using JetBrains.Annotations;
 using Localization.Resources.AbpUi;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Components;
-using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Localization;
 using Volo.Abp.Application.Dtos;
 using Volo.Abp.Application.Services;
 using Volo.Abp.AspNetCore.Components;
-using Volo.Abp.AspNetCore.Components.Progression;
-using Volo.Abp.AspNetCore.Components.WebAssembly;
 using Volo.Abp.Authorization;
 using Volo.Abp.BlazoriseUI.Components;
-using Volo.Abp.ObjectMapping;
 
 namespace Volo.Abp.BlazoriseUI
 {