anchor.diff:  import 'package:browser_detect/browser_detect.dart' as detect;
   
   import 'dart:js';
  -
  -void safariPrint(String msg) {
  -  if(detect.browser.isSafari) {
  -    print(msg);
  -  }
  -}
   
   
   @CustomTag("gcanvas-app")
  
positive.code: 
    void refresh() {
      syncCtrl.sync().then((_) {
        safariPrint("gCanvasApp.refresh");
        _loadAppState();
        safariPrint("gCanvasApp.refresh 2");
      });
  
    }
  
negative.code:   GCanvasApp.created() : super.created();
  
  
  
    void enteredView() {
      super.enteredView();
      attached();
    }
  
    void attached() {
      super.attached();
  
  