Updates libs/app.bundle.js

index.html

     <script src="libs/popover.js?v=1"></script><!-- bootstrap tooltip lib -->
     <script src="libs/toastr.js?v=1"></script><!-- notifications lib -->
     <script src="interface_config.js?v=5"></script>
-    <script src="libs/app.bundle.js?v=71"></script>
+    <script src="libs/app.bundle.js?v=72"></script>
     <script src="analytics.js?v=1"></script><!-- google analytics plugin -->
     <link rel="stylesheet" href="css/font.css?v=7"/>
     <link rel="stylesheet" href="css/toastr.css?v=1">

libs/app.bundle.js

         self.sendIceCandidate(event.candidate);
     };
     this.peerconnection.onaddstream = function (event) {
-        console.log("REMOTE STREAM ADDED: " + event.stream + " - " + event.stream.id);
-        self.remoteStreamAdded(event);
+        if (event.stream.id !== 'default') {
+            console.log("REMOTE STREAM ADDED: " + event.stream + " - " + event.stream.id);
+            self.remoteStreamAdded(event);
+        } else {
+            // This is a recvonly stream. Clients that implement Unified Plan,
+            // such as Firefox use recvonly "streams/channels/tracks" for
+            // receiving remote stream/tracks, as opposed to Plan B where there
+            // are only 3 channels: audio, video and data.
+            console.log("RECVONLY REMOTE STREAM IGNORED: " + event.stream + " - " + event.stream.id);
+        }
     };
     this.peerconnection.onremovestream = function (event) {
         // Remove the stream from remoteStreams