WorkerGlobalScope: isSecureContext 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.

See full compatibility

Note: This feature is only available in Web Workers.

The isSecureContext read-only property of the WorkerGlobalScope interface returns a boolean indicating whether the current context is secure (true) or not (false).

Value

A boolean.

Specifications

Specification
HTML # dom-issecurecontext-dev

Browser compatibility

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`isSecureContext`	Chrome – Full support Chrome 47 (Release date: 2015-12-01) footnote Full support	Edge – Full support Edge 15 (Release date: 2017-04-05) footnote Full support	Firefox – Full support Firefox 49 (Release date: 2016-09-20) footnote Full support	Opera – Full support Opera 34 (Release date: 2015-12-08) footnote Full support	Safari – Full support Safari 11.1 (Release date: 2018-04-12) footnote Full support	Chrome Android – Full support Chrome Android 47 (Release date: 2015-12-02) footnote Full support	Firefox for Android – Full support Firefox for Android 49 (Release date: 2016-09-20) footnote Full support	Opera Android – Full support Opera Android 34 (Release date: 2015-12-16) footnote Full support	Safari on iOS – Full support Safari on iOS 11.3 (Release date: 2018-03-29) footnote Full support	Samsung Internet – Full support Samsung Internet 5 (Release date: 2016-12-15) footnote Full support	WebView Android – Full support WebView Android 47 (Release date: 2015-12-02) footnote Full support	WebView on iOS – Full support WebView on iOS 11.3 (Release date: 2018-03-29) footnote Full support
Available in workers	Chrome – Full support Chrome 55 (Release date: 2016-12-01) footnote Full support	Edge – Full support Edge 15 (Release date: 2017-04-05) footnote Full support	Firefox – Full support Firefox 52 (Release date: 2017-03-07) footnote Full support	Opera – Full support Opera 40 (Release date: 2016-09-20) footnote Full support	Safari – Full support Safari 11.1 (Release date: 2018-04-12) footnote Full support	Chrome Android – Full support Chrome Android 55 (Release date: 2016-12-06) footnote Full support	Firefox for Android – Full support Firefox for Android 52 (Release date: 2017-03-07) footnote Full support	Opera Android – Full support Opera Android 41 (Release date: 2016-10-25) footnote Full support	Safari on iOS – Full support Safari on iOS 11.3 (Release date: 2018-03-29) footnote Full support	Samsung Internet – Full support Samsung Internet 6 (Release date: 2017-08-23) footnote Full support	WebView Android – Full support WebView Android 55 (Release date: 2016-12-06) footnote Full support	WebView on iOS – Full support WebView on iOS 11.3 (Release date: 2018-03-29) footnote Full support

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

Full support: Full support

WorkerGlobalScope: isSecureContext property

Value

Specifications

Browser compatibility

Legend

See also