I don't know what would be the behavior from the Apache using this type of config : - Pragma/Cache-Control has the identical position therefore you provide them with 2 differents configs. It can be Odd. - no-keep imply that the ressource should not be cached. So how can it's revalidated https://bookmarkwuzz.com/story20982395/not-known-facts-about-%E4%BB%AE%E6%83%B3%E9%80%9A%E8%B2%A8%E3%82%AB%E3%82%B8%E3%83%8E