browser cache

基本解释

You can also see whether resources were loaded from the browser cache.
此外，还可以查看资源是否从浏览器缓存中加载。
There are lots of issues and solutions around this, but in this case you have at least one thing going for you—the browser cache.
虽然存在许多有关这方面的问题和解决方案，但是在这种情况下您至少有一件事情要去做 — 浏览器缓存。
If a valid response can be found in the browser cache, the browser displays the content to the end user without sending a request to the network.
如果可以在浏览器缓存中找到有效的响应，浏览器将不向网络发送请求，而直接将此内容向最终用户显示。

One on the server, the other in your browser (or cache, whatever).
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