This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
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.
PushManager.permissionState(options).then(function(PushMessagingState) { ... });
options OptionaluserVisibleOnly: 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. A Promise that resolves to a DOMString with a value of 'prompt', 'denied', or 'granted'.
| Specification | Status | Comment |
|---|---|---|
| Push API The definition of 'permissionState()' in that specification. | Working Draft | Initial definition. |
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | 42.0 | (Yes) | 44.0 (44.0)[1] | No support | ? | No support |
| Feature | Android | Android Webview | Edge | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|---|
| Basic support | No support | No support | (Yes) | 48.0 (48)[2] | No support | No support | No support | No support | 42.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/PushManager/permissionState