diff --git a/webrtc/RTCPeerConnection-helper.js b/webrtc/RTCPeerConnection-helper.js
index b13e580998efce..330ce1992d97a5 100644
--- a/webrtc/RTCPeerConnection-helper.js
+++ b/webrtc/RTCPeerConnection-helper.js
@@ -358,7 +358,7 @@ const trackFactories = {
    */
   canCreate(requested) {
     const supported = {
-      audio: !!window.MediaStreamAudioDestinationNode,
+      audio: !!window.AudioContext && !!window.MediaStreamAudioDestinationNode,
       video: !!HTMLCanvasElement.prototype.captureStream
     };