ajax請求node.js介面時出現 No 'Access-Control-Allow-Origin' header is present on the requested resource錯誤

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ajax請求node.js介面出現了如下的錯誤：

XMLHttpRequest cannot load http://xxx.xxx.xx.xx:8888/getTem?cityId=110105&date=2015-03-04. No ‘Access-Control-Allow-Origin‘ header is present on the requested resource. Origin ‘null‘ is therefore not allowed access.

百度了一下，原來是缺少Access-Control-Allow-Origin屬性，那麼在node.js輸出時把Access-Control-Allow-Origin屬性加上就好了，如下

response.writeHead(200, {‘Content-Type‘: ‘text/json;charset=utf-8‘,‘Access-Control-Allow-Origin‘:‘*‘}); 

Google查了一下，原來Access-Control-Allow-Origin來限制請求網域名稱的。 點我查看該屬性的解釋

ajax請求node.js介面時出現 No 'Access-Control-Allow-Origin' header is present on the requested resource錯誤