Web platform features explorer

The SharedWorker() constructor runs a script in its own thread, which can send and receive messages with other scripts running at the same origin.

Status

Limited availability

MDN documentation

SharedWorker
SharedWorker: SharedWorker() constructor
SharedWorker: error event
SharedWorker: port property
SharedWorkerGlobalScope
SharedWorkerGlobalScope: close() method
SharedWorkerGlobalScope: connect event
SharedWorkerGlobalScope: name property

Specifications

HTML (#shared-workers-introduction), from HTML Workstream (WHATWG).

Browser support (view on caniuse.com)

Chrome 5 Released on 2010-05-25
Chrome Android ❌ See crbug.com/40290702 crbug.com/40554522
Edge 79 Released on 2020-01-15
Firefox 29 Released on 2014-04-29
Firefox for Android 33 Released on 2014-10-14
Safari 16 Released on 2022-09-12
Safari on iOS 16 Released on 2022-09-12

Baseline availability blocked since September 2022 by Chrome Android (41 months)

Web Platform Tests (WPT)

View the latest WPT test results for this feature

Developer votes

👍
5

Do you need this feature?
Let us know by leaving a 👍 reaction on the feedback issue. Don't forget to also leave a comment explaining your specific use case.