Crash in webgl (deploy)

Hi

Is something wrong with that script code that make Unity not able to export for webgl platform (crash on deploying process)?

Tip: Same code always can be deployed for web player without any crashes.

Using 5.0.0f4 (windows 7)

 var windowRect : Rect = Rect (200, 600, 600, 500);
  var doWindow0 : boolean = false;
  var txturl : String;
  var baseUrl : String;
  var txtload : WWW;
  var products : String[];
  var dlCompleted : boolean=false;
  var text : String;
  
  function Start()
  {    
      txturl = baseUrl+"/exports/export.txt";
      
      txtload = new WWW(txturl);
  
      yield txtload;
  
      text=txtload.text.Replace("\n","");
      
      products=text.Split(["<product>"], System.StringSplitOptions.None);
  
      dlCompleted = true;
  }

Thanks