> The reason there isn't a delay the second click is because the redirect is cached locally in your browser.
No, because it’s not an HTTP redirect. It’s an HTML page that redirects you using a meta tag, something that the browser doesn’t cache.
Your humble anonymous tipster notes to their skeptical audience that browsers are capable of caching all sorts of things, even something as peculiar as an HTML page.
Yes, and this is irrelevant to your previous comment: caching the HTML doesn’t cache the redirect itself.