Which FlexJS/Royale version do you use? I remember that this worked for me with FlexJS 0.8.0 [1]. (I will check it out soon with the latest snapshot version).
[1] private function onResult(result:Event):void { var jsonResult:Object = JSON.parse(result.target.data as String) as Object; // Populate iframe this.addIframe(jsonResult.projectUrl); // Populate console with compiler output this.tiConsole.text = jsonResult.compilerOutput; } -- Sent from: http://apache-royale-users.20374.n8.nabble.com/