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

The Permissions API provides a consistent programmatic way to query the status of API permissions attributed to the current context — for example whether permission to use the API is granted or denied, and whether the user will be asked whether permission should be granted for an API.

Concepts and usage

Historically different APIs handle their own permissions inconsistently — for example the Notifications API allows for explicit checking of permission status and requesting permission, whereas the Geolocation API doesn't (which causes problems if the user denied the initial permission request). The Permissions API provides the tools to allow developers to implement a better user experience as far as permissions are concerned.

The permissions property has been made available on the Navigator object, both in the standard browsing context and the worker context (WorkerNavigator — so permission checks are available inside workers), and returns a Permissions object that provides access to the Permissions API functionality.

Once you have this object you can then perform permission-related tasks, for example querying a permission using the Permissions.query() method to return a promise that resolves with the PermissionStatus for a specific API.

Not all APIs' permission statuses can be queried using the Permissions API. Notable APIs that are Permissions-aware include:

More APIs will gain Permissions API support over time.


We have made a simple example available called Location Finder. You can run the example live, or view the source code on Github.

Read more about how it works in our article Using the Permissions API.


Navigator.permissions and WorkerNavigator.permissions Read only
Provides access to the Permissions object from the main context and worker context respectively.
Provides the core Permission API functionality, such as methods for querying and revoking permissions.
Provides access to the current status of a permission, and an event handler to respond to changes in permission status.


Specification Status Comment
Permissions Working Draft Initial definition.

Browser Support

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 43.0 46 (46) ? ? ?
revoke() ? 47 (47) ? ? ?
persistent-storage permission name ? 53 (53) ? ? ?
Feature Android Android Webview Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile Chrome for Android
Basic support No support 43.0 46.0 (46) ? ? ? 43.0
revoke() ? ? ? ? ? ? ?
persistent-storage permission name ? ? 53.0 (53) ? ? ? ?

See also

Document Tags and Contributors

Last updated by: Sheppy,