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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 CompatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 57 16
Disabled
16
Disabled
Disabled From version 16: this feature is behind the Enable service workers preference.
17
44
44
Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR.)
Enabled only in Nightly, Developer Edition, and Beta channels.
No 44 No
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support No 57 No 44
44
48
Push enabled by default.
44 No 4.0

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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/PushEvent/data