I don't understand what will be the habits with the Apache with this config : - Pragma/Cache-Manage has the identical purpose and you also give them 2 differents configs. It really is Unusual. - no-retail outlet signify that the ressource shouldn't be cached. So how can it be revalidated ? https://bookmarklayer.com/story21016267/getting-my-%E3%82%AA%E3%83%B3%E3%83%A9%E3%82%A4%E3%83%B3%E3%82%AB%E3%82%B8%E3%83%8E-%E4%BB%AE%E6%83%B3%E9%80%9A%E8%B2%A8-to-work