Create simpler way to show Not Found 404 UI with Blazor #45654
Description
Is there an existing issue for this?
- I have searched the existing issues
Is your feature request related to a problem? Please describe the problem.
Currently, we support the lack of a page in blazor, unfortunately, if we want to place a 404 header for SEO and, for example, google bot, it creates a problem.
It's worth handling this exception.
There is currently a workaround that doesn't look very good to me.
App.razor
<NotFound> <PageTitle>Not found</PageTitle> <LayoutView Layout="@typeof(Pages._404)"> 404 </LayoutView> </NotFound>404 layout:
@layout Shared.MainLayout @inherits LayoutComponentBase @using Microsoft.AspNetCore.Http @Body @code { [Inject] IHttpContextAccessor httpContextAccessor { get; set; } = null!; [Inject] PersistentComponentState _ApplicationState { get; set; } = null!; PersistingComponentStateSubscription persistingSubscription; bool model = true; protected override void OnInitialized() { persistingSubscription = _ApplicationState.RegisterOnPersisting(Task () => { _ApplicationState.PersistAsJson($"404", model); return Task.CompletedTask; }); if (!_ApplicationState.TryTakeFromJson<bool>($"404", out var dto)) { if (httpContextAccessor.HttpContext is not null) httpContextAccessor.HttpContext.Response.StatusCode = StatusCodes.Status404NotFound; } } }Also I read in the documentation that we shouldn't use httpcontext in blazor subpages.
Describe the solution you'd like
I think Not Found blazor server side should automatically handle and ship. I've searched the internet and the documentation and found nothing useful.
Additional context
No response