PushEvent.data

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The data read-only property of the PushEvent interface returns a reference to a PushMessageData object containing data sent to the PushSubscription.

Syntax

var myPushData = PushEvent.data;

Value

A PushMessageData object.

Examples

The following example takes data from a PushEvent and displays it on all of the service workers' clients.

self.addEventListener('push', function(event) {
  if (!(self.Notification && self.Notification.permission === 'granted')) {
    return;
  }

  var data = {};
  if (event.data) {
    data = event.data.json();
  }
  var title = data.title || "Something Has Happened";
  var message = data.message || "Here's something you might want to check out.";
  var icon = "images/new-notification.png";

  var notification = new Notification(title, {
    body: message,
    tag: 'simple-push-demo-notification',
    icon: icon
  });

  notification.addEventListener('click', function() {
    if (clients.openWindow) {
      clients.openWindow('https://example.blog.com/2015/03/04/something-new.html');
    }
  });
});

Specifications

Specification Status Comment
Push API
The definition of 'data' in that specification.
Working Draft Initial definition.

Browser Compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic support
Experimental
Chrome Full support 57Edge Full support 16
Disabled
Full support 16
Disabled
Disabled From version 16: this feature is behind the Enable service workers preference.
Full support 17
Firefox Full support 44
Notes
Full support 44
Notes
Notes Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR.)
Notes Enabled only in Nightly, Developer Edition, and Beta channels.
IE No support NoOpera Full support 44Safari No support NoWebView Android No support NoChrome Android Full support 57Edge Mobile No support NoFirefox Android Full support 44
Full support 44
Full support 48
Notes
Notes Push enabled by default.
Opera Android Full support 44Safari iOS No support NoSamsung Internet Android Full support 4.0

Legend

Full support  
Full support
No support  
No support
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
See implementation notes.
See implementation notes.
User must explicitly enable this feature.
User must explicitly enable this feature.

Document Tags and Contributors

Contributors to this page: sjsam, dnlnav, fscholz, chrisdavidmills, marco-c
Last updated by: sjsam,