This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The window.isSecureContext
read-only property indicates whether a context is capable of using features that require secure contexts.
Syntax
var isSecure = window.isSecureContext
Examples
Feature detection
You can use feature detection to check whether they are in a secure context or not by using the isSecureContext
boolean which is exposed on the global scope.
if (window.isSecureContext) { // Page is a secure context so service workers are now available navigator.serviceWorker.register("/offline-worker.js").then(function () { ... }); }
Specifications
Specification | Status | Comment |
---|---|---|
Secure Contexts | Working Draft | Initial definition. |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support | (Yes) | 49 (49) | ? | ? | ? |
Considers window.opener | No support | 49 (49) | ? | ? | ? |
Feature | Android | Android Webview | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
---|---|---|---|---|---|---|---|
Basic support | No support | (Yes) | 49.0 (49) | ? | ? | ? | (Yes) |
Considers window.opener | No support | (Yes) | 49.0 (49) | ? | ? | ? | ? |