isSecureContextThe isSecureContext global property is a boolean for whether the current browsing context is secure. This is primarily a check that the page has been served over an HTTPS URL.widely2018-04-122020-10-12https://html.spec.whatwg.org/multipage/webappapis.html#dom-issecurecontext-devhttps://developer.mozilla.org/docs/Web/API/Window/isSecureContextapi.isSecureContextapi.isSecureContext.worker_supporthttps://nowyoucanuse.com/features--is-secure-context.html