Localizer of blazor webassembly no working in zh-hans.

I followed the sample project in https://github.com/pranavkm/LocSample

Here is the code of Program.cs:

using System;
using System.Net.Http;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Text;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Blazored.LocalStorage;
using System.Globalization;
using System.Diagnostics;
using Microsoft.Extensions.Options;

namespace Temple
{
public class Program
{
public static async Task Main(string[] args)
{
var builder = WebAssemblyHostBuilder.CreateDefault(args);
builder.RootComponents.Add<App>("app");

builder.Services.AddTransient(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
builder.Services.AddLocalization(options => options.ResourcesPath = "Resources");
builder.Services.AddBlazoredLocalStorage();

var host = builder.Build();
var localStorage = host.Services.GetRequiredService<ILocalStorageService>();
string CurrentLanguage=await localStorage.GetItemAsync<string>("Language"); 
Debug.WriteLine(CurrentLanguage); 
if (!string.IsNullOrEmpty(CurrentLanguage))
{
var culture = new CultureInfo(CurrentLanguage);
CultureInfo.DefaultThreadCurrentCulture = culture;
CultureInfo.DefaultThreadCurrentUICulture = culture;
}
await host.RunAsync();
}
}
}

And here is the code of index.razor:

@page "/"
@inject IStringLocalizer<Index> Localizer;
@inject NavigationManager Nav
@inject Blazored.LocalStorage.ILocalStorageService localStorage<h1>@Localizer["Test"]</h1><button @onclick="ABC">123123</button>
Welcome to your new app.

@code{
public void ABC()
{ 
localStorage.SetItemAsync("Language", "zh-Hans"); 
Nav.NavigateTo(Nav.Uri, forceLoad: true);
}
}

And here is the file list:

https://i.stack.imgur.com/H8wAS.png

As you see, I have using the Blazored.LocalStorage nuget package to achieve the local storage and it works well.

The problem is when I clicked the button in index.razor. The language never changes to Chinese.

What's more, I found a strange problem. After I modified the code of void ABC in index.razor like this:

@code{
public void ABC()
{
localStorage.SetItemAsync("Language", "en");
Nav.NavigateTo(Nav.Uri, forceLoad: true);
}
}

When I clicked the button, it changed the language to English correctly.

What's wrong with this?