Php + jquery Cross-Origin submission problem. don't give up. it's only 20 points.-php Tutorial

Source: Internet
Author: User
Tags domain server
Php + jquery Cross-Origin submission problem. don't give up. it's only 20 points. 1: The output of json on the server side of domain A is as follows:
$test = "{name:\"John\", message:\"hello John\"}";echo $test;

2: The B-domain server program is as follows:
function sendEmail() {var orderingId = $("#orderingId").val(); alert(orderingId); $.ajax({ type: "get", url:"", cache : false,  dataType : "jsonp", jsonp: "callbackfun", jsonpCallback:"jsonpCallback",                 success:function (json) {alert(json.message);} })}

However, the page prompts an error:
User agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; Trident/4.0; SV1;. net clr 2.0.50727;. net clr;. net clr 3.5.30729)
Timestamp: Tue, 22 Oct 2013 10:48:39 UTC

Message: Script error
Row: 0
Character: 0
Code: 0
URI: Orderingid = 2222 & callbackfun = jsonpCallback & _ = 1382438914750

Reply to discussion (solution)

Ajax cannot cross-origin. this is an indisputable fact.
Your code is only a form of cross-origin, in fact

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