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.
Client interface represents an executable context such as a
Worker, or a
Window clients are represented by the more-specific
WindowClient. You can get
WindowClient objects from methods such as
- Sends a message to the client.
- The universally unique identifier of the client as a string.
- The client's type as a string. It can be "
worker", or "
- The URL of the client as a string.
The definition of 'Client' in that specification.
|Editor's Draft||Initial definition.|
|Feature||Chrome||Firefox (Gecko)||Internet Explorer||Opera||Safari (WebKit)|
|Basic support||40||44.0 (44.0)||No support||27||No support|
|Feature||Android Webview||Chrome for Android||Firefox Mobile (Gecko)||IE Mobile||Opera Mobile||Safari Mobile|
|Basic support||40||40||44.0 (44.0)||No support||27||No support|
-  Service workers (and Push) have been disabled in the Firefox 45 & 52 Extended Support Releases (ESR.)