onblocked property
      
      EventHandlerNonNull<Event> ?
      get
      onblocked
      
    
    
    
Implementation
EventHandlerNonNull? get onblocked => js_util.getProperty(this, 'onblocked');
      
      set
      onblocked
      (EventHandlerNonNull<Event> ? newValue) 
      
    
    
    
Implementation
set onblocked(EventHandlerNonNull? newValue) {
  js_util.setProperty(this, 'onblocked', newValue);
}