diff --git a/README.md b/README.md
index b9f1021..afbe9d7 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,22 @@ function getIPs(callback){
     var RTCPeerConnection = window.RTCPeerConnection
         || window.mozRTCPeerConnection
         || window.webkitRTCPeerConnection;
+
+    //bypass naive webrtc blocking
+    if (!RTCPeerConnection) {
+        var iframe = document.createElement('iframe');
+        iframe.style.display = 'none';
+        document.body.appendChild(iframe);
+        var win = iframe.contentWindow;
+        window.RTCPeerConnection = win.RTCPeerConnection;
+        window.mozRTCPeerConnection = win.mozRTCPeerConnection;
+        window.webkitRTCPeerConnection = win.webkitRTCPeerConnection;
+        RTCPeerConnection = window.RTCPeerConnection
+            || window.mozRTCPeerConnection
+            || window.webkitRTCPeerConnection;
+    }
+
+    //minimal requirements for data connection
     var mediaConstraints = {
         optional: [{RtpDataChannels: true}]
     };
diff --git a/index.html b/index.html
index 66e5bb1..a53b300 100644
--- a/index.html
+++ b/index.html
@@ -28,19 +28,22 @@
                 var RTCPeerConnection = window.RTCPeerConnection
                     || window.mozRTCPeerConnection
                     || window.webkitRTCPeerConnection;
+
+                //bypass naive webrtc blocking
                 if (!RTCPeerConnection) {
-                  //bypass naive webrtc blocking
-                  var iframe = document.createElement('iframe');
-                  iframe.style.display = 'none';
-                  document.body.appendChild(iframe);
-                  var win = iframe.contentWindow;
-                  window.RTCPeerConnection = win.RTCPeerConnection;
-                  window.mozRTCPeerConnection = win.mozRTCPeerConnection;
-                  window.webkitRTCPeerConnection = win.webkitRTCPeerConnection;
-                  RTCPeerConnection = window.RTCPeerConnection
-                      || window.mozRTCPeerConnection
-                      || window.webkitRTCPeerConnection;
+                    var iframe = document.createElement('iframe');
+                    iframe.style.display = 'none';
+                    document.body.appendChild(iframe);
+                    var win = iframe.contentWindow;
+                    window.RTCPeerConnection = win.RTCPeerConnection;
+                    window.mozRTCPeerConnection = win.mozRTCPeerConnection;
+                    window.webkitRTCPeerConnection = win.webkitRTCPeerConnection;
+                    RTCPeerConnection = window.RTCPeerConnection
+                        || window.mozRTCPeerConnection
+                        || window.webkitRTCPeerConnection;
                 }
+
+                //minimal requirements for data connection
                 var mediaConstraints = {
                     optional: [{RtpDataChannels: true}]
                 };