如何在不支持CORS的情况获取跨域JSON数据

Question

不支持cors也不支持jsonp的callbackvar url = 'http://www.runoob.com/try/angularjs/data/sites.php';function hello(res) {    console.log(res);}function jsonp(url) {    var script = document.createElement('script');    script.src = url;    script.id = 'test'    document.body.appendChild(script);}window.onload = function(){    jsonp(url)}貌似无解？