Question

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Cross-domain XHR/AJAX : a possible workaround?

I tried to do a xmlHttpRequest from within my Javascript to a Restful Web service which is running on an another server. I got an JS error specifying

"XMLHttpRequest cannot load 'URL'.Origin 'localhost' is not allowed by Access-Control-Allow-Origin.

After googling i got to know that i cannot make an XmlhttpRequest across domains.

I would like to know what is the best way to implement a cross domain web service call from my Javascript.

Answer 1

Hi i am using this with my applications

function CrossDomainAjax(url, data, callback){
   $.ajax({
     type: "GET",
     url: url,
     data: data,
     contentType: "application/json; charset=utf-8",
     dataType: "jsonp",
     jsonpCallback: callback
   });    
}

now for the server side function
it should return jsonp also, like this

callBack({your:json});