The interface of the the WebRTC API provides an object represents a certificate that an RTCPeerConnection uses to authenticate. Properties RTCCertificate.expires Read only Returns the expiration date of the certificate. Specifications Specification Status Comment WebRTC 1.0: Real-time Communication Between Browsers Working Draft Initial definition. Browser compatibility Desktop Mobile Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit) Basic support 49 36 Feature Android Webview Chrome for Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Basic support 49 49 36