Web/API/LockManager

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

The LockManager interface of the the Web Locks API provides methods for requesting a new Lock object and querying for an existing Lock object. To get an instance of LockManager, call navigator.locks.

Methods

LockManager.request()

Requests a Lock object with parameters specifying its name and characteristics.

LockManager.query()

Returns a Promise that resolves with a LockManagerSnapshot which contains information about held and pending locks.

Specifications

Specification	Status	Comment
Web Locks APIThe definition of 'LockManager' in that specification.	Draft	Initial definition.

Browser compatibility

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
LockManager Experimental'	Chrome Full support 69	Edge Full support ≤79	Firefox ?	IE No support No	Opera Full support 56	Safari ?	WebView Android Full support 69	Chrome Android Full support 69	Firefox Android ?	Opera Android Full support 48	Safari iOS ?	Samsung Internet Android Full support 10.0
query Experimental'	Chrome Full support 69	Edge Full support ≤79	Firefox ?	IE No support No	Opera Full support 56	Safari ?	WebView Android Full support 69	Chrome Android Full support 69	Firefox Android ?	Opera Android Full support 48	Safari iOS ?	Samsung Internet Android Full support 10.0
request Experimental'	Chrome Full support 69	Edge Full support ≤79	Firefox ?	IE No support No	Opera Full support 56	Safari ?	WebView Android Full support 69	Chrome Android Full support 69	Firefox Android ?	Opera Android Full support 48	Safari iOS ?	Samsung Internet Android Full support 10.0

Legend

Full support  

Full support

No support  

No support

Compatibility unknown  

Compatibility unknown

Experimental. Expect behavior to change in the future.'

Experimental. Expect behavior to change in the future.

LockManager by Mozilla Contributors is licensed under CC-BY-SA 2.5.