Default ICE servers

gistfile1.txt

diff --git a/dom/media/PeerConnection.js b/dom/media/PeerConnection.js
--- a/dom/media/PeerConnection.js
+++ b/dom/media/PeerConnection.js
@@ -266,17 +266,19 @@ RTCPeerConnection.prototype = {
   classID: PC_CID,
   contractID: PC_CONTRACT,
   QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
                                          Ci.nsIDOMGlobalPropertyInitializer,
                                          Ci.nsISupportsWeakReference]),
   init: function(win) { this._win = win; },
 
   __init: function(rtcConfig) {
+    dump("CONFIG: " + JSON.stringify(rtcConfig));
     if (!rtcConfig.iceServers ||
+        !rtcConfig.iceServers.length ||
         !Services.prefs.getBoolPref("media.peerconnection.use_document_iceservers")) {
       rtcConfig = {iceServers:
         JSON.parse(Services.prefs.getCharPref("media.peerconnection.default_iceservers"))};
     }
     this._mustValidateRTCConfiguration(rtcConfig,
         "RTCPeerConnection constructor passed invalid RTCConfiguration");
     if (_globalPCList._networkdown) {
       throw new Components.Exception("Can't create RTCPeerConnections when the network is down");

Is it no chance for a peerconnection from localhost when the network is down? Very bad.