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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.
The permissionState() method of the PushManager interface returns a Promise that resolves to a DOMString indicating the permission state of the push manager. Possible values are 'prompt', 'denied', or 'granted'.
Note: As of Firefox 44, the permissions for Notifications and Push have been merged. If permission is granted for notifications, push will also be enabled.
Syntax
PushManager.permissionState(options).then(function(PushMessagingState) { ... });
Parameters
options Optional- An object containing optional configuration parameters. It can have the following properties:
userVisibleOnly: A boolean indicating that the returned push subscription will only be used for messages whose effect is made visible to the user.applicationServerKey: A public key your push server will use to send messages to client apps via a push server. This value is part of a signing key pair generated by your application server and usable with elliptic curve digital signature (ECDSA) over the P-256 curve.
Returns
A Promise that resolves to a DOMString with a value of 'prompt', 'denied', or 'granted'.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Push API The definition of 'permissionState()' in that specification. |
Working Draft | Initial definition. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 42.0 | 44.0 (44.0)[1] | No support | ? | No support |
| Feature | Android | Android Webview | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|
| Basic support | No support | No support | 48.0 (48)[2] | No support | No support | No support | No support | 42.0 |
- [1] Push (and Service Workers) have been disabled in the Firefox 45 Extended Support Release (ESR.)
- [2] Push has been enabled by default on Firefox for Android version 48.