diff --git a/framework/src/Volo.Abp.AspNetCore.Components.Server/Volo/Abp/AspNetCore/Components/Server/Extensibility/BlazorServerLookupApiRequestService.cs b/framework/src/Volo.Abp.AspNetCore.Components.Server/Volo/Abp/AspNetCore/Components/Server/Extensibility/BlazorServerLookupApiRequestService.cs
index 2071e40f0b..355f9fff44 100644
--- a/framework/src/Volo.Abp.AspNetCore.Components.Server/Volo/Abp/AspNetCore/Components/Server/Extensibility/BlazorServerLookupApiRequestService.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Components.Server/Volo/Abp/AspNetCore/Components/Server/Extensibility/BlazorServerLookupApiRequestService.cs
@@ -64,7 +64,7 @@ public class BlazorServerLookupApiRequestService : ILookupApiRequestService, ITr
                 client.BaseAddress = new Uri(baseUrl);
                 foreach (var header in HttpContextAccessor.HttpContext.Request.Headers)
                 {
-                    requestMessage.Headers.Add(header.Key, header.Value.ToArray());
+                    requestMessage.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray());
                 }
             }
         }