Blazor Identity LoginWith2fa "Remember this machine" checkbox label has a for that matches no element

[javiercn]

The Blazor Web App (Individual auth) two-factor login page wraps the "Remember this machine" checkbox in a <label> that carries for="remember-machine", but nothing on the page has id="remember-machine". Because the label declares a for, the browser does not fall back to the implicit wrapping association, so the checkbox ends up with no associated label: screen readers announce an unlabeled checkbox and clicking the visible text does not toggle it.

Source: src/ProjectTemplates/Web.ProjectTemplates/content/BlazorWeb-CSharp/BlazorWebCSharp.1/Components/Account/Pages/LoginWith2fa.razor (the <div class="checkbox mb-3"> block).

<label for="remember-machine" class="form-label">
    <InputCheckbox @bind-Value="Input.RememberMachine" />
    Remember this machine
</label>

The InputCheckbox renders name="Input.RememberMachine" and id Input_RememberMachine, never remember-machine.

Expected

The visible "Remember this machine" text labels the checkbox, so an accessible-name lookup finds the control and clicking the text toggles it. The Login page's "Remember me" checkbox already does this correctly with a wrapping label and no for:

<label class="form-label">
    <InputCheckbox @bind-Value="Input.RememberMe" class="darker-border-checkbox form-check-input" />
    Remember me
</label>

Actual

for="remember-machine" resolves to no element, so the checkbox has no accessible name.

Steps to reproduce

1. Create a Blazor Web App with Individual auth (Server or Auto interactivity).
2. Register and confirm a user, enable authenticator 2FA.
3. Log out, log in, reach /Account/LoginWith2fa.
4. Try to locate the checkbox by its label (for example Playwright GetByLabel("Remember this machine")): it is not found.

Suggested fix

Remove for="remember-machine" (matching Login.razor's "Remember me"), or add id="remember-machine" to the InputCheckbox.

Build validated

Branch main, build 20260630.1, SDK 11.0.100-preview.7.26330.101, ASP.NET Core packages 11.0.0-preview.7.26330.101.

A search for remember-machine and Remember this machine found no existing issue.