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

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

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support48 Yes441 ? No ?
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support No48 ?44 No ?5.0

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: fscholz, jpmedley, PaulKinlan, chrisdavidmills, rolfedh
Last updated by: fscholz,