cache-control

基本解釋

Two other headers are used in tandem with Cache-Control to control retention
另外兩個報頭將與 Cache-Control 結(jié)合使用來控制保持力
Uses the Cache-Control response header to determine whether to cache the resource (make a local copy of it) or not.
使用 Cache-Control 響應 Header 確定是否緩存資源（創(chuàng)建資源的本地副本）。
Maybe one CSS file had a different Cache-Control header than all of the other files, or maybe the browser kicked out of cache because it was running out of allocated space.
也許一個 CSS 文件擁有一個與其他所有文件都不同的 Cache-Control 頭部，或者，也許是瀏覽器因為耗盡了已分配空間而無法緩存。