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statechange

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当serviceWorker的状态发生改变的时候出发statechange事件

基本信息

Specification
To be specified
接口继承
CallEvent
冒泡
 是否可以取消
Target
Call, CallGroup
默认行为 

事件属性

Property Type Description
target 只读 EventTarget The event target (the topmost target in the DOM tree).
type 只读 DOMString The type of event.
bubbles 只读 Boolean Whether the event normally bubbles or not
cancelable 只读 Boolean Whether the event is cancellable or not?
state 只读 DOMString (string) The current state of the call.
call 只读 Call The call concerned by the event.

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