--- a/browser/base/content/test/webrtc/get_user_media.html
+++ b/browser/base/content/test/webrtc/get_user_media.html
@@ -27,17 +27,18 @@ var gStreams = [];
 
 function requestDevice(aAudio, aVideo, aShare, aBadDevice = false) {
   var opts = {video: aVideo, audio: aAudio};
   if (aShare) {
     opts.video = {
       mozMediaSource: aShare,
       mediaSource: aShare
     };
-  } else if (useFakeStreams) {
+  }
+  if (useFakeStreams) {
     opts.fake = true;
   }
 
   if (aVideo && aBadDevice) {
     opts.video = {
       deviceId: "bad device"
     };
     opts.fake = true;