JavaScript能够进行跨站点XMLHttpRequest吗?
我知道这有限制并且通常不能工作,但自Firefox 3.5以来,有了
Access-Control-Allow-Origin: *
它应该允许此操作。
它告诉浏览器,服务器不关心请求是否来自未提供页面的域。
下面是我使用的代码。
function sendData(webservicePayload, callbackFunction) {
var request = null;
if (!window.XMLHttpRequest) { // code for IE
try {
request = new ActiveXObject('Msxml2.XMLHTTP');
} catch (e) {
try {
request = new ActiveXObject('Microsoft.XMLHTTP');
} catch (E) {
return 'Create XMLHTTP request IE';
}
}
} else { // code for Mozilla, etc.
request = new XMLHttpRequest();
}
/*
* Setup the callback function
*/
request.onreadystatechange = function() {
if (request.readyState == 4 && request.status < 300) {
eval(callbackFunction);
}
};
if (!request) {
nlapiLogExecution('ERROR', 'Create XMLHTTP request', 'Failed');
return;
}
/*
* Setup the request headers
*/
request.open('POST','http://www.another.domain.co.uk/webservice.asmx', true);
request.setRequestHeader('Man','POST http://www.another.domain.co.uk/webservice.asmx HTTP/1.1');
request.setRequestHeader('MessageType', 'CALL');
request.setRequestHeader('Content-Type', 'text/xml; charset="utf-8"');
request.setRequestHeader('Cache-Control', 'no-cache');
request.setRequestHeader("X-Requested-With", "XMLHttpRequest");
request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
request.setRequestHeader('SOAPAction','http://www.another.domain.co.uk/WebService/eService');
request.send(webservicePayload);
这将发送正确的请求头请求
OPTIONS /webservice.asmx HTTP/1.1
Host: www.another.domain.co.uk
User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:8.0) Gecko/20100101 Firefox/8.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-gb,en;q=0.5
Accept-Encoding: gzip, deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Connection: keep-alive
Origin: https://my.domain.com
Access-Control-Request-Method: POST
Access-Control-Request-Headers: cache-control,content-type,man,messagetype,soapaction
Pragma: no-cache
Cache-Control: no-cache
并且接收到一个预期的响应头。
响应
HTTP/1.1 403 Forbidden
Server: Microsoft-IIS/5.1
Date: Wed, 14 Dec 2011 13:43:27 GMT
X-Powered-By: ASP.NET
Access-Control-Allow-Origin: *
Connection: close
Content-Type: text/html
Content-Length: 44
正如您所看到的,"Origin" 在请求中被指定,服务器响应接受任何("*")域。
为什么我会收到"禁止访问 403" 的消息?我感觉我做的一切都是正确的,但我无法弄清楚原因。
是否还有其他人遇到这个问题?
您知道是什么原因导致的吗?