onupdatefound
特性为
ServiceWorkerRegistration
interface is an
EventListener
property called whenever an event of type
statechange
is fired; it is fired any time the
ServiceWorkerRegistration.installing
property acquires a new service worker.
注意 : This feature is available in Web 工作者 .
serviceWorkerRegistration.onupdatefound = function() { ... };
| 规范 | 状态 | 注释 |
|---|---|---|
|
服务工作者
The definition of 'ServiceWorkerRegistration.onupdatefound' in that specification. |
工作草案 | 初始定义。 |
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
onupdatefound
|
Chrome 40 |
Edge
17
|
Firefox
44
|
IE No | Opera 27 | Safari 11.1 | WebView Android 40 | Chrome Android 40 | Firefox Android 44 | Opera Android 27 | Safari iOS 11.3 | Samsung Internet Android 4.0 |
完整支持
不支持
实验。期望将来行为有所改变。
见实现注意事项。
用户必须明确启用此特征。
ServiceWorkerRegistration
active
installing
navigationPreload
onupdatefound
periodicSync
pushManager
scope
sync
waiting