Ajax submits data across domains

$.ajax ({
URL: "http://my.demo.com/jsonp/server.php",//files of different domains;
Cache:false,//whether to use cache;
Error:function () {},//error when executing the method;
JSONP: "Callback",//cross-domain required parameters, callback function name, corresponding server file $_get[' callback '];
DataType: "Jsonp",//cross-domain required parameters, declaration JSONP transmission;
Success:function (data) {//method called on success;
Console.log (data); Data returned by the output server
}
})

No refresh Data update can also be implemented with IFRAME;

Write a hidden iframe

Set the target of the form = ' iframename ';

This refreshes the page and the data returned by the server is in this IFRAME.

The server should return a section of JS, which is called a method in the parent class;

The method in the parent class accepts the need to follow the new data. And then the data that is displayed in the new page.

Ajax submits data across domains