jQuery Ajax错误

I am trying to do an ajax Call using jquery in one of my webpages.

It's going into Error function all the time. When I look at the console in Firebug, the status seems to be ok , it displays 200 OK.

And when I manually launch the url in a firefox window, i am getting the expected page.

But when the same url is being called through jquery ajax, it always goes into the error function.

Following are the various values that i got during debug xhr.readyState=4 xhr.statusText=Error xhr.responseBody=undefined.

Could anyone of you please help me with this ?

function ajax_call(urlString)
        {
            ret_val="";
            $.ajax
            (
                {
                    type: "GET",
                    url: urlString,
                    async:false,
                    cache:false,
                    success: function(msg)
                    {
                        ret_val=msg;
                    },
                    error:function (xhr, textStatus, thrownError)
                    {
                        ret_val=xhr.readyState;
                        alert("textStatus=" +textStatus);
                    }
                }
            );
            return ret_val;
        } 

It looks like you might be returning plaintext from your call, looking at the jQuery docs for ajax it says the dataType parameter defaults to:

dataType                                         String
Default: Intelligent Guess (xml, json, script, or html)

That seems to imply that it won't "guess" at plaintext, so maybe try adding

dataType: 'text'

(assuming you are returning plaintext - if not I'll delete this) to your parameters.

Also, just to confirm, the URL you are requesting is on the same server as the javascript making the request, isn't it?

It was my mistake !

In the browser URL , i was looking at "http://localhost/data.php"

in the AJAX call , i was calling the same php by giving absolute url like "http://xyz.com/data.php"

as a result, ajax call was considering this as a cross domain call, although it was for the same php.

Resolved this by calling the relative url "/data.php"