Deprecated
This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
Important: In modern browsers, this property has been deprecated. Service worker messages will now use the MessageEvent
interface, for consistency with other web messaging features.
The ServiceWorkerMessageEvent()
constructor creates a new ServiceWorkerMessageEvent
object instance.
Syntax
var mySWME = new ServiceWorkerMessageEvent(type, init);
Parameters
- type
- A
DOMString
that defines the type of the message event being created. - init Optional
- An initialisation object, which should contain the following parameters:
data
: The event's data — this can be any type.origin
: ADOMString
that defines the origin of the corresponding service worker's environment settings object.lastEventId
: ADOMString
that defines the last event ID of the event source.source
: TheServiceWorker
orMessagePort
that sent the message.ports
: An array containing theMessagePort
objects connected to the channel sending the message.
Examples
var init = { data : 'hello message', source : MessagePortReference, ports : MessagePortListReference } var mySWME = new ServiceWorkerMessageEvent('message', init);
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
ServiceWorkerMessageEvent() constructor | Chrome Full support 45 | Edge
Full support
17
| Firefox
No support
44 — 55
| IE No support No | Opera Full support 24 | Safari No support No | WebView Android No support No | Chrome Android Full support 45 | Firefox Android No support 44 — 55 | Opera Android Full support 24 | Safari iOS No support No | Samsung Internet Android Full support 4.0 |
Legend
- Full support
- Full support
- No support
- No support
- Deprecated. Not for use in new websites.
- Deprecated. Not for use in new websites.
- See implementation notes.
- See implementation notes.
- User must explicitly enable this feature.
- User must explicitly enable this feature.