Cordova 5.3.1 Failed to load webpage with error: operation could not be completed. (Error NSURLErrorDomain -999.)

Question

I have this code on my cordova application, with the InAppBrowser plugin, to open an external network

onDeviceReady: function() {
    app.receivedEvent('deviceready');

    if(PushbotsPlugin.isAndroid()){
        PushbotsPlugin.initializeAndroid("XXXX", "YYYYY");
        PushbotsPlugin.getToken(function(token){
          var url="http://subdomain.domain.com/deviceid/" + token + '/platform/1';
          document.getElementById("ge").addEventListener("click", irekiAndroid(url), false);
          var ref = window.open(url, '_blank','location=no');
        });
    }
    if(PushbotsPlugin.isiOS()){
        PushbotsPlugin.initializeiOS("XXXXX");
        PushbotsPlugin.getToken(function(token){
           var url="http://subdomain.domain.com/deviceid/"+ token + '/platform/0';

          document.getElementById("ge").addEventListener("click", irekiIOS(url), false);
          window.open(url, '_self','location=yes');
        });
    }

},

It works fine in android, but on iOS, I get this error:

Failed to load webpage with error: The operation couldn’t be completed. (NSURLErrorDomain error -999.)

I checked all the other stackoverflow related questions, but nobody seems to be correct ...

Any help or hint?