I have implemented a filter that runs reCAPTCHA v3 verification. If the verification is successful, the post data is processed and e-mailed to the designated recipient(s). If verification fails, I would like to return a view, but that doesn't seem to work. Instead, I am redirecting to an error page. I would prefer that the error page not be accessible directly from a URL, so returning a view is preferable. Is there a way to return a view directly from a filter, or is it necessary to use a redirect?