XmlHttpRequest跨域[重复](XmlHttpRequest cross-domain [duplicate])

 
 
 这个问题在这里已有答案： 
 
 
 
  
 如何规避同源政策 11答案 
 
 
 
 
 我试图向远程Rest（put方法）api发出请求 
 
var xhReq = new XMLHttpRequest();
xhReq.open("PUT", "http://api-easybib.apigee.com/2.0/rest/cite", true);
xhReq.setRequestHeader('Content-Type', 'application/json');
var jsonString = "{...}";

xhReq.send(JSON.stringify(jsonString));

var serverResponse = xhReq.responseText;
 
 它失败了 
 
 
 
 没有'Access-Control-Allow-Origin'标题 
 
 
 虽然我成功通过休息客户端浏览器插件拨打电话 。 
 
 我错过了什么？ 

 
 
This question already has an answer here:
 
 
 
  
 Ways to circumvent the same-origin policy  11 answers  
 
 
 
 
Im trying to make requests to a remote Rest (put method) api
 
var xhReq = new XMLHttpRequest();
xhReq.open("PUT", "http://api-easybib.apigee.com/2.0/rest/cite", true);
xhReq.setRequestHeader('Content-Type', 'application/json');
var jsonString = "{...}";

xhReq.send(JSON.stringify(jsonString));

var serverResponse = xhReq.responseText;
 
it fails with 
 
 
 
No 'Access-Control-Allow-Origin' header
 
 
although i succeeded to make call via rest client browser plugins.
 
What am i missing?

原文：https://stackoverflow.com/questions/21855064