WorkerGlobalScope.navigator

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.

Syntax

var navigatorObj = self.navigator;

Value

A WorkerNavigator object.

Example

If you called

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 envinronment, as you might do with a normal Navigator object.

Note: Firefox has a bug with using console.log inside shared/service workers (see bug 1058644), which may return strange results, but this should be fixed soon.

Specifications

Specification Status Comment
WHATWG HTML Living Standard
The definition of 'navigator' in that specification.
Living Standard No change from Web Workers.
Web Workers
The definition of 'navigator' in that specification.
Candidate Recommendation Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 4 3.5 (1.9.1) (Yes) 11.5 4
Feature Android Chrome for Android Firefox Mobile (Gecko) Firefox OS (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? 40 1.0 (1.9.1) 1.0.1 (Yes) (Yes) 5.1

See also

WorkerNavigator

Document Tags and Contributors

 Contributors to this page: Jeremie, teoli, chrisdavidmills, kscarfone
 Last updated by: Jeremie,