This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

Returns the string ID of the notification button the user clicked. This value returns undefined if the user clicked the notification somewhere other than an action button, or the notification does not have a button. The notification id is set during the creation of the Notification via the actions array attribute and can't be modified unless the notification is replaced.


A DOMString object.


self.registration.showNotification("New articles available", {
  actions: [{action: "get", title: "Get now."}]

self.addEventListener('notificationclick', function(event) {
  if (event.action === 'get') {
  } else {
}, false);


Specification Status Comment
Notifications API
The definition of 'action' in that specification.
Living Standard Living standard.

Browser Compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 48 ?[1] ? ? ?
Feature Android Android Webview Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support No support No support ? ? ? ? ? 48

[1] Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR.)

Document Tags and Contributors

 Contributors to this page: PaulKinlan, chrisdavidmills, rolfedh, jpmedley
 Last updated by: PaulKinlan,