I happily just discovered the Cache-Control rules stale-if-error and stale-while-revalidate. I came across an article on Cloudflare's site that says that those two directives are ignored if CF's Always Online feature is enabled, so I've gone ahead and disabled that. However, I'm confused by the following quote:
The stale-if-error directive is ignored if Always Online is enabled or if an explicit in-protocol directive is passed. Examples of explicit in-protocol directives include a no-store or no-cache cache directive, a must-revalidate cache-response-directive, or an applicable s-maxage or proxy-revalidate cache-response-directive.
We do use s-maxage. Does that mean that stale-if-error is always ignored? An example of something we have is this:
Cache-Control: max-age=3600, s-maxage=86400, stale-while-revalidate=3600, stale-if-error=604800, publicGiven the above, when is s-maxage considered "applicable" to override stale-if-error?