ServiceWorkerMessageEvent.ServiceWorkerMessageEvent()

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: 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
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic support
Deprecated
Chrome Full support 45Edge 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 Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR).
Notes In Firefox 55 and later, the standard MessageEvent interface must be used instead.
IE No support NoOpera Full support 24Safari No support NoWebView Android No support NoChrome Android Full support 45Edge Mobile ? Firefox Android No support 44 — 55Opera Android Full support 24Safari iOS No support NoSamsung Internet Android Full support 4.0

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
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.

See also

Document Tags and Contributors

Contributors to this page: sideshowbarker, fscholz, chrisdavidmills
Last updated by: sideshowbarker,