WorkerGlobalScope: navigator property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2018.

Note: This feature is only available in Web Workers.

The navigator read-only property of the WorkerGlobalScope interface returns the WorkerNavigator associated with the worker. It is a specific navigator object, mostly a subset of the Navigator for browsing scopes, but adapted to workers.

Value

A WorkerNavigator object.

Examples

If you call the following:

js
console.log(navigator);

inside a worker (which would basically be the equivalent of self.console.log(self.navigator);, as these are being called on the worker scope, which can be referenced with WorkerGlobalScope.self), you will get a WorkerNavigator object written to the console — something like the following:

Object {onLine: true, userAgent: "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) Ap…ML, like Gecko) Chrome/40.0.2214.93 Safari/537.36", product: "Gecko", platform: "MacIntel", appVersion: "5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKi…ML, like Gecko) Chrome/40.0.2214.93 Safari/537.36"…}
    appCodeName: "Mozilla"
    appName: "Netscape"
    appVersion: "5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.93 Safari/537.36"
    hardwareConcurrency: 4
    onLine: true
    platform: "MacIntel"
    product: "Gecko"
    userAgent: "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.93 Safari/537.36"
    __proto__: Object

You could use this navigator object to return more information about the runtime environment, as you might do with a normal Navigator object.

Specifications

Specification
HTML
# dom-worker-navigator-dev

Browser compatibility

desktop mobile server
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
navigator
Chrome – Full support
Chrome 4 (Release date: 2010-01-25)
footnote Full support
Edge – Full support
Edge 17 (Release date: 2018-04-30)
footnote Full support
Firefox – Full support
Firefox 3.5 (Release date: 2009-06-30)
footnote Full support
Opera – Full support
Opera 11.5 (Release date: 2011-06-28)
footnote Full support
Safari – Full support
Safari 4 (Release date: 2009-06-08)
footnote Full support
Chrome Android – Full support
Chrome Android 18 (Release date: 2012-06-27)
footnote Full support
Firefox for Android – Full support
Firefox for Android 4 (Release date: 2011-03-29)
footnote Full support
Opera Android – Full support
Opera Android 14 (Release date: 2013-05-21)
footnote Full support
Safari on iOS – Full support
Safari on iOS 5 (Release date: 2011-10-12)
footnote Full support
Samsung Internet – Full support
Samsung Internet 1 (Release date: 2013-04-27)
footnote Full support
WebView Android – Full support
WebView Android 4.4 (Release date: 2013-12-09)
footnote Full support
WebView on iOS – Full support
WebView on iOS 5 (Release date: 2011-10-12)
footnote Full support
Deno – Full support
Deno 1.8 (Release date: 2021-03-02)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

See also

WorkerNavigator