title: XMLHttpRequest: Origin null is not allowed by Access-Control-Allow-Origin
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/3595515/xmlhttprequest-error-origin-null-is-not-allowed-by-access-control-allow-origin">XmlHttpRequest error: Origin null is not allowed by Access-Control-Allow-Origin</a><br>
    <a href="https://stackoverflow.com/questions/6479694/xmlhttprequest-cannot-load-file-origin-null-is-not-allowed-by-access-contr">XMLHttpRequest cannot load file://… Origin null is not allowed by Access-Control-Allow-Origin</a>  </p>
  </blockquote>
  
  
  
  <p>I am trying to open my JSON file such as:</p>
  
  <pre><code>jQuery.getJSON('../data/json/en/nodesData.json',
        function(data){
             jQuery.each(data, function(){
                    //do something...
             })
       })
  </code></pre>
  
  <p>this yields the following error in Chrome:</p>
  
  <blockquote>
    <p>XMLHttpRequest cannot load file:///C:/URL/data/json/en/nodesData.json. Origin null is not allowed by Access-Control-Allow-Origin</p>
  </blockquote>
  
  <p>what's problem? How can I retrieve my json?</p>