RedirectToPage from a form-action handler includes the formaction

[pranavkm]

// Index.cshtml
@page "{formaction?}"
public void OnGetLoginCallback()
{
    // Do sign-in stuff
   return RedirectToPage(new { message = "Hello {user}"});
}

Expected: Redirects to /Index
Actual: RedirectToPage redirects to /Index/LoginCallback (resulting in a loop).

[pranavkm]

cc @rynowak \ @DamianEdwards

[rynowak]

Let's have all of our Page link generation replace the formaction route value with null if it's not explicitly specified. This means that formaction will not be 'sticky' in ambient values.