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

The InstallEvent() constructor creates a new InstallEvent object.


var myInstallEvent = new InstallEvent(type, init);


The type of the event.
init Optional
An options object containing any custom settings that you want to apply to the event object. Available options are as follows:
  • activeWorker: The ServiceWorker that is currently actively controlling the page.


Specification Status Comment
Service Workers
The definition of 'InstallEvent' in that specification.
Working Draft Initial definition.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support40 ?441 No27 No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support4040 ?4427 No4.0

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

See also

Document Tags and Contributors

Contributors to this page: fscholz, chrisdavidmills, Sebastianz, kscarfone
Last updated by: fscholz,