code: def jsonp(func):
      
  
      @functools.wraps(func)
      def decorated_view(*args, **kwargs):
          callback = request.args.get('callback', None)
          if callback:
              data = str(func(*args, **kwargs))
              content = str(callback) + '(' + data + ')'
              mimetype = 'application/javascript'
              return current_app.response_class(content, mimetype=mimetype)
          else:
              return func(*args, **kwargs)
      return decorated_view
docs: Wraps JSONified output for JSONP requests.
      http://flask.pocoo.org/snippets/79/