如何使用iframe(跨域)post请求?
我想做一个跨域请求,我使用一个针对 iframe 的表单来提交请求。
var iframe = document.createElement("iframe");
var uniqueString = "CHANGE_THIS_TO_SOME_UNIQUE_STRING";
document.body.appendChild(iframe);
iframe.style.display = "none";
iframe.contentWindow.name = uniqueString;
var form = document.createElement("form");
form.target = uniqueString;
form.action = myUrl;
form.method = "POST";
// repeat for each parameter
var input = document.createElement("input");
input.type = "hidden";
input.name = "setting";
input.value = params;
form.appendChild(input);
document.body.appendChild(form);
form.submit();
iframe.onload = iframe.onreadystatechange = function(){
if(this.readyState && this.readyState!="complete") return ;
else{
alert("haha");
}
};
Chrome显示iframe已收到远程url返回的数据,但我无法使用Javascript获取iframe内容?你们有什么建议或解决方案吗?
I want to do a post cross-domain request , I use a form which targeted a iframe to submit the request.
var iframe = document.createElement("iframe");
var uniqueString = "CHANGE_THIS_TO_SOME_UNIQUE_STRING";
document.body.appendChild(iframe);
iframe.style.display = "none";
iframe.contentWindow.name = uniqueString;
var form = document.createElement("form");
form.target = uniqueString;
form.action = myUrl;
form.method = "POST";
// repeat for each parameter
var input = document.createElement("input");
input.type = "hidden";
input.name = "setting";
input.value = params;
form.appendChild(input);
document.body.appendChild(form);
form.submit();
iframe.onload = iframe.onreadystatechange = function(){
if(this.readyState && this.readyState!="complete") return ;
else{
alert("haha");
}
};
The Chrome shows iframe has receive the returned data from remote url, but i cannot get the iframe content using Javascript ? Do you guys have any advices or solutions ?
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您应该使用 GUID 将参数添加到表单。服务器应在会话中保存带有特定答案的 GUID。
之后,您发送表单,使用您在服务器中使用的 GUID 通过 JSONP 调用服务器,服务器应该返回它在会话中保存的 asnwers。
You should add a parameter to the form with a GUID. There server should save in the session the GUID with the specific answers.
After that you send the form you call the server via JSONP with the GUID that you used in the server and the server should return the asnwers that it saved in the session.