What does status 0 in ajax mean?

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 <html>

<head>

        <script type="text/javascript" src=ajax.js></script>
 
        </script>

        <style type='text/css'>

        </style>

    </head>    

    <body onload='makePOSTRequest("video_videos.php","display_details")'>

<div id='display_details'></div>

</body>

</html>

My ajax func is defined in an external file ajax.js

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 function makePOSTRequest(filename,id)

            {

                if (window.XMLHttpRequest)     // Object of the current windows

                { 

                        xhr = new XMLHttpRequest();   

                } 

            else 

                 if (window.ActiveXObject)   // ActiveX version

                     {

                            xhr = new ActiveXObject("Microsoft.XMLHTTP");  // Internet Explorer 

                     } 
 
              xhr.onreadystatechange =function chk()

                    {alert(xhr.status);
 
                        if (xhr.readyState == 4){
 
                            if (xhr.status==200){
 
                                    document.getElementById(id).innerHTML=xhr.responseText;    

                                    alert(xhr.responseText);

                                }

                                }
 
                    }

            xhr.open('GET', filename, true);                  

        xhr.send(null); 
 
                    }

I just implemented a small script for ajax and when i rin it I get the status to be 0.
What does that mean?

Apr 26 '10 #1

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✓ answered by Dormilich

you (resp. the XMLHttpRequest object) will go through each readyState, no need to debug something. besides, you can only get a HTTP status code, if the server responds (that is, not before readyState 2) and I would only be concerned if the status is not 200 or 0.

5023

Dormilich

8,658

Expert Mod 8TB

in case of .status, the local file system does not send HTTP status codes, thus 0.

the .readyState 0 means "unsent"

Apr 26 '10 #2

phpuser123

108

100+

Is there any way to debug the status 0..I've been getting this a couple of times
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Apr 27 '10 #3

Dormilich

8,658

Expert Mod 8TB

Apr 27 '10 #4

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What does status 0 in ajax mean?

✓ answered by Dormilich

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