custom PeerConnection constraints:&quot; +
          callbacks.rtcConstraints.toString()); &#47;&#47; FIX ME
      for (var i in callbacks.rtcConstraints) {
        pcConstraints[&#39;optional&#39;].add(callbacks.rtcConstraints[i]);
      }
    }
    if (Janus.webRTCAdapter[&#39;browserDetails&#39;][&#39;browser&#39;] == &quot;edge&quot;) {
      &#47;&#47; This is Edge, enable BUNDLE explicitly
      pcConfig[&#39;bundlePolicy&#39;] = &quot;max-bundle&quot;;
    }
    Janus.log(&quot;Creating PeerConnectio