3 ms·
In addition, having Expires set to a date in the past in not the same as "Cache-Control: no-cache, private". The latter instructs CDNs not to cache the file whe
by khc 8y ago
In addition, having Expires set to a date in the past in not the same as "Cache-Control: no-cache, private". The latter instructs CDNs not to cache the file whereas the former doesn't (CDN is allowed to cache the file and revalidates with the origin).
Disclosure: I work at cloudflare.