I don't know what will be the conduct with the Apache with this config : - Pragma/Cache-Manage has exactly the same purpose and you also give them two differents configs. It really is Unusual. - no-retailer indicate that the ressource really should not be cached. So how can it be https://socialevity.com/story23055341/the-fact-about-%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-that-no-one-is-suggesting