Window：caches 属性

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2018.

We'd love to hear more about your role and the company you work for

Please help us by answering a few questions.

安全上下文: 此项功能仅在一些支持的浏览器的安全上下文（HTTPS）中可用。

Window 接口的 caches 只读属性返回与当前上下文相关联的 CacheStorage 对象。此对象提供了诸如存储用于离线使用的资源，并生成对请求的自定义响应等功能。

值

一个 CacheStorage 对象。

以下示例展示了在窗口中应如何检索缓存数据。

window.caches.open("v1").then((cache) => {
  return cache.match("/list");
});

Specification
Service Workers # self-caches