anchor.diff:      _clearOutput();
     }
   
  -  void _export() {
  +  void _export(WindowBase exportWindow) {
       PadSaveObject exportObject = new PadSaveObject()..html = context.htmlSource
           ..css = context.cssSource ..dart = context.dartSource;
       Future<UuidContainer> id = dartSupportServices.export(exportObject);
       id.then((UuidContainer container) {
  -      window.open('/index.html?export=${container.uuid}', 'Export');
  +      exportWindow.location.href='$webURL/index.html?export=${container.uuid}';
       });
     }
   
  
positive.code: }
  
  class PlaygroundMobile {
    PaperFab _runButton;
    PaperIconButton _exportButton;
    PaperIconButton _cancelButton;
  
negative.code:     if ($('#affirmExportButton') != null) {
        _affirmButton = new PaperIconButton.from($('#affirmExportButton'));
        _affirmButton.clickAction(() {
          WindowBase wind = window.open("", 'Window');
          _exportDialog.toggle();
          _export(wind);
        });
      }
    }
  