How to enable to select culture with both url and cookie in asp.net core razor and blazor pages?

I have applied Localization in my asp.net core mvc project.It includes blazor pages for Identity.I want to enable to change the culture by changing the site url's culture part.

domain/en/Home/Index

Currently, the culture can be changed by cookie.This is the cookie culture switch

But when I change the url's culture to ja, the culture isn't changing.How to enable both without any restriction each other?

I added the following code to add culture to the url, but it didn't work for Blazor pages.

app.MapControllerRoute(    name: "default",    pattern: "{culture}/{controller=First}/{action=Index}/{id?}");

I want to apply this to Blazor pages to.And I added the partial for the culture switch.

<div><form asp-action="CultureManagement" asp-controller="Home" method="post" asp-route-returnUrl="@returnUrl"><select name="cultureName" asp-for="@culture!.RequestCulture.UICulture.Name" class="selectpicker" data-width="fit" asp-items="@cultureList"            onchange="this.form.submit();"></select></form></div>

It only changes the cookie.

[HttpPost]public IActionResult CultureManagement(string cultureName, string returnUrl){    Response.Cookies.Append(CookieRequestCultureProvider.DefaultCookieName,        CookieRequestCultureProvider.MakeCookieValue(new RequestCulture(cultureName)),        new CookieOptions { Expires = DateTimeOffset.Now.AddDays(30) });    return LocalRedirect(returnUrl);}

I want to enable to change culture by changing the url and cookie.And also want to apply to blazor pages.