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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
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) | ? | ? | ? |
| 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) |