diff --git a/aspnetcore/blazor/security/webassembly/additional-scenarios.md b/aspnetcore/blazor/security/webassembly/additional-scenarios.md
index 969f1907da..cf28846c69 100644
--- a/aspnetcore/blazor/security/webassembly/additional-scenarios.md
+++ b/aspnetcore/blazor/security/webassembly/additional-scenarios.md
@@ -29,7 +29,9 @@ In the following example:
 * <xref:Microsoft.AspNetCore.Components.WebAssembly.Authentication.BaseAddressAuthorizationMessageHandler> is the <xref:System.Net.Http.DelegatingHandler> used to process access tokens. Access tokens are only added when the request URI is within the app's base URI.
 * <xref:System.Net.Http.IHttpClientFactory.CreateClient%2A?displayProperty=nameWithType> creates and configures an <xref:System.Net.Http.HttpClient> instance for outgoing requests using the configuration that corresponds to the named <xref:System.Net.Http.HttpClient> (`WebAPI`).
 
-In the following example, <xref:Microsoft.Extensions.DependencyInjection.HttpClientFactoryServiceCollectionExtensions.AddHttpClient%2A?displayProperty=nameWithType> is an extension in <xref:Microsoft.Extensions.Http?displayProperty=fullName>.
+In the following example, <xref:Microsoft.Extensions.DependencyInjection.HttpClientFactoryServiceCollectionExtensions.AddHttpClient%2A?displayProperty=nameWithType> is an extension in <xref:Microsoft.Extensions.Http?displayProperty=fullName>. Add the package to an app that doesn't already reference it.
+
+[!INCLUDE[](~/includes/package-reference.md)]
 
 ```csharp
 using System.Net.Http;
@@ -268,7 +270,9 @@ In the preceding code, the scopes `example.read` and `example.write` are generic
 
 In `Program.cs`, `CustomAuthorizationMessageHandler` is registered as a transient service and is configured as the <xref:System.Net.Http.DelegatingHandler> for outgoing <xref:System.Net.Http.HttpResponseMessage> instances made by a named <xref:System.Net.Http.HttpClient>.
 
-In the following example, <xref:Microsoft.Extensions.DependencyInjection.HttpClientFactoryServiceCollectionExtensions.AddHttpClient%2A?displayProperty=nameWithType> is an extension in <xref:Microsoft.Extensions.Http?displayProperty=fullName>.
+In the following example, <xref:Microsoft.Extensions.DependencyInjection.HttpClientFactoryServiceCollectionExtensions.AddHttpClient%2A?displayProperty=nameWithType> is an extension in <xref:Microsoft.Extensions.Http?displayProperty=fullName>. Add the package to an app that doesn't already reference it.
+
+[!INCLUDE[](~/includes/package-reference.md)]
 
 ```csharp
 builder.Services.AddTransient<CustomAuthorizationMessageHandler>();
@@ -424,7 +428,9 @@ public class WeatherForecastClient
 
 In the preceding example, the `WeatherForecast` type is a static class that holds weather forecast data. The placeholder `{ASSEMBLY NAME}` is the app's assembly name (for example, `using static BlazorSample.Data;`).
 
-In the following example, <xref:Microsoft.Extensions.DependencyInjection.HttpClientFactoryServiceCollectionExtensions.AddHttpClient%2A?displayProperty=nameWithType> is an extension in <xref:Microsoft.Extensions.Http?displayProperty=fullName>.
+In the following example, <xref:Microsoft.Extensions.DependencyInjection.HttpClientFactoryServiceCollectionExtensions.AddHttpClient%2A?displayProperty=nameWithType> is an extension in <xref:Microsoft.Extensions.Http?displayProperty=fullName>. Add the package to an app that doesn't already reference it.
+
+[!INCLUDE[](~/includes/package-reference.md)]
 
 In `Program.cs`:
 
@@ -458,7 +464,9 @@ protected override async Task OnInitializedAsync()
 
 The handler can be further configured with <xref:Microsoft.AspNetCore.Components.WebAssembly.Authentication.AuthorizationMessageHandler.ConfigureHandler%2A> for outbound HTTP requests.
 
-In the following example, <xref:Microsoft.Extensions.DependencyInjection.HttpClientFactoryServiceCollectionExtensions.AddHttpClient%2A?displayProperty=nameWithType> is an extension in <xref:Microsoft.Extensions.Http?displayProperty=fullName>.
+In the following example, <xref:Microsoft.Extensions.DependencyInjection.HttpClientFactoryServiceCollectionExtensions.AddHttpClient%2A?displayProperty=nameWithType> is an extension in <xref:Microsoft.Extensions.Http?displayProperty=fullName>. Add the package to an app that doesn't already reference it.
+
+[!INCLUDE[](~/includes/package-reference.md)]
 
 In `Program.cs`:
 
@@ -482,7 +490,9 @@ For a hosted Blazor solution based on the [Blazor WebAssembly project template](
 
 An app that ordinarily uses a secure default <xref:System.Net.Http.HttpClient> can also make unauthenticated or unauthorized web API requests by configuring a named <xref:System.Net.Http.HttpClient>.
 
-In the following example, <xref:Microsoft.Extensions.DependencyInjection.HttpClientFactoryServiceCollectionExtensions.AddHttpClient%2A?displayProperty=nameWithType> is an extension in <xref:Microsoft.Extensions.Http?displayProperty=fullName>.
+In the following example, <xref:Microsoft.Extensions.DependencyInjection.HttpClientFactoryServiceCollectionExtensions.AddHttpClient%2A?displayProperty=nameWithType> is an extension in <xref:Microsoft.Extensions.Http?displayProperty=fullName>. Add the package to an app that doesn't already reference it.
+
+[!INCLUDE[](~/includes/package-reference.md)]
 
 In `Program.cs`: