> Serve Stale Content While Revalidating (Not Working as Expected)

> This is the only thing that I was not able to figure out.

For good reason, because (at the last time I tried this earlier this year) Cloudflare documents stale-while-revalidate as if it's supported [1], but it isn't [2], [3].

Cloudflare instead has a different behaviour [4], [5] which helps in some circumstances but not all.

I use Fastly's free CDN plan to get round this.

1. https://developers.cloudflare.com/cache/concepts/revalidatio...

2. https://community.cloudflare.com/t/support-for-stale-while-r...

3. https://community.cloudflare.com/t/when-will-cloudflare-full...

4. https://kerkour.com/cloudflare-stale-while-revalidate

5. https://stackoverflow.com/questions/48124415/does-cloudflare...