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

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


var isItSecure = self.isSecureContext; // or just isSecureContext


A Boolean.


Specification Status Comment
Secure Contexts
The definition of 'WindowOrWorkerGlobalScope.isSecureContext' in that specification.
Candidate Recommendation Initial definition.

Browser compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 55 52 (52) ? ? ?
Feature Android Webview Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support 55 55 52.0 (52) ? ? ?

See also

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 Contributors to this page: kenrick95, chrisdavidmills, jpmedley
 Last updated by: kenrick95,