这是
实验性技术
检查
浏览器兼容性表格
要小心谨慎在生产中使用这之前。
caches
只读特性在
WindowOrWorkerGlobalScope
interface returns the
CacheStorage
object associated with the current context. This object enables functionality such as storing assets for offline use, and generating custom responses to requests.
var myCacheStorage = self.caches; // or just caches
A
CacheStorage
对象。
The following example shows how you'd use a cache in a service worker context to store assets offline.
this.addEventListener('install', function(event) {
event.waitUntil(
caches.open('v1').then(function(cache) {
return cache.addAll([
'/sw-test/',
'/sw-test/index.html',
'/sw-test/style.css',
'/sw-test/app.js',
'/sw-test/image-list.js',
'/sw-test/star-wars-logo.jpg',
'/sw-test/gallery/',
'/sw-test/gallery/bountyHunters.jpg',
'/sw-test/gallery/myLittleVader.jpg',
'/sw-test/gallery/snowTroopers.jpg'
]);
})
);
});
| 规范 | 状态 | 注释 |
|---|---|---|
|
服务工作者
The definition of 'caches' in that specification. |
工作草案 |
Defined in a
WindowOrWorkerGlobalScope
partial in the newest spec.
|
| 服务工作者 | 工作草案 | 初始定义。 |
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
caches
|
Chrome 40 | Edge ≤79 |
Firefox
42
|
IE No | Opera ? | Safari No | WebView Android Yes | Chrome Android Yes |
Firefox Android
42
|
Opera Android Yes | Safari iOS Yes | Samsung Internet Android Yes |
完整支持
不支持
兼容性未知
实验。期望将来行为有所改变。
见实现注意事项。