With the current caching defaults - the CDN is keeping the file longer than the browser - this has a side-effect for resources that might stay in the browser cache for longer - they get back-ground refreshed but won't stay in the cache as age is longer than max-age.
With the current caching defaults - the CDN is keeping the file longer than the browser - this has a side-effect for resources that might stay in the browser cache for longer - they get back-ground refreshed but won't stay in the cache as age is longer than max-age.