Blazor 9 WASM Logout throws AntiforgeryValidationException

I created a straight-from-the-template Blazor 9 WASM Web App with Authentication type set to Individual Accounts, and Global Webassembly interaction.

The only change I made was to swap in Microsoft.EntityFrameworkCore.InMemory.

When I run the app, I can register and log in fine.

However, when I hit the "Logout" link, it navigates to "Account/Logout" which has the following exception:

AntiforgeryValidationException: The required antiforgery request token was not provided in either form field "__RequestVerificationToken" or header value "RequestVerificationToken".

BadHttpRequestException: Invalid anti-forgery token found when reading parameter "string returnUrl" from the request body as form.

Does anyone know what the issue is?

For a workaround, I added a controller:

[Authorize]
[Route("api/[controller]")]
public class ManageAccountController
{
    [HttpPost("[action]")]
    public async Task<IActionResult> Logout()
    {
        await HttpContext.SignOutAsync(IdentityConstants.ApplicationScheme);
        return Ok();
    }
}

Then in my Blazor component:

@inject HttpClient client_;

<button @onclick="logout" class="btn btn-link m-0 p-0">
    Log out
</button>

@code {
    async Task logout()
    {
        var response = await client_.PostAsync("api/ManageAccount/Logout", null);
        if (response.IsSuccessStatusCode)
        {
            nav_.NavigateTo("/", forceLoad: true);
        }
    }
}

It works. Not sure why we'd need an `AntiforgeryToken` on a logout method, hopefully I'm not missing something important.