This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The Extendable
MessageEvent()
constructor creates a new ExtendableMessageEvent
object instance.
var myEME = new ExtendableMessageEvent(type, init);
DOMString
that defines the type of the message event being created.data
: The event's data — this can be any type.origin
: A DOMString
that defines the origin of the corresponding service worker's environment settings object.lastEventId
: A DOMString
that defines the last event ID of the event source.source
: The Client
, ServiceWorker
or MessagePort
that sent the message.ports
: An array containing the MessagePort
objects connected to the channel sending the message.var init = { data : 'hello message', source : MessagePortReference, ports : MessagePortListReference } var myEME = new ExtendableMessageEvent('message', init);
Specification | Status | Comment |
---|---|---|
Service Workers The definition of 'ExtendableMessageEvent()' in that specification. | Working Draft | Initial definition. |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | ? | ? | 45
|
No | ? | No |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | No | ? | ? | 45 | ? | No | ? |
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/ExtendableMessageEvent/ExtendableMessageEvent