dojo/request/script通过JSONP实现跨域请求数据，需要后台配合返回Javascript代码：

require(["dojo/request/script","dojo/json"],function(script,JSON) {
    script.get(url,{
        handleAs: "json",jsonp: 'jsonpcallback'
    }).then(function(data) {
        console.log(JSON.stringify(data));
     });
});

请求url的形式：

http://url?param=bgh&jsonpcallback=dojo_request_script_callbacks.dojo_request_script0

响应头信息包含此内容：

Content-Type: application/javascript;charset=UTF-8

dojo_request_script_callbacks.dojo_request_script0({"name":"bgh","note":"","success":true});