Web/API/ServiceWorkerMessageEvent/ServiceWorkerMessageEvent

DeprecatedThis 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: 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 ServiceWorker or MessagePort that sent the message.
ports: An array containing the MessagePort 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

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`ServiceWorkerMessageEvent()` constructor Deprecated'	Chrome Full support 45	Edge Full support 17 Full support 17 Full support 16 Disabled' Disabled' From version 16: this feature is behind the `Enable service workers` preference.	Firefox No support 44 — 55 Notes' No support 44 — 55 Notes' Notes' Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API. Notes' In Firefox 55 and later, the standard `MessageEvent` interface must be used instead.	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.