Parent element is ready before its child - Polymer 1.0
问题 This question had been modified to match the actual problem. The original question mistakingly focused on iron-ajax, please see the original problem below. The question should have been: Please advice why child iron-ajax element is not ready during the 'ready' callback of my-component defined as follows: <dom-module id="my-component"> <template> <link rel="import" href="../../../bower_components/iron-ajax/iron-ajax.html"> <iron-ajax id="selectionLoader" url="" method="GET" handle-as="json"