jQuery $ .ajax发布referer url进行错误调试

Question

i want to create a function for sending error messages from $.ajax posts via email to myself, here's my code:

    $.ajax({
        type: "POST",
        url: my_url,
        data: data,
        beforeSend: function(request, settings) {
            request.settings = settings;
        },
        success: function(data) {
        },
        error: function (request, status, error)
        {
            send_error(status, error, request);
        }
    });

i mapped the request.settings into the ajax call in order to receive extra infos for my send_error function. i'm getting infos like url, type, data, responseText (= server's error message). i would like also getting the referrer URL so i can see where it was triggered. seems it's only inside the responseText, a link inside the server's error message. is there a better alternative for getting the referrer URL? thanks

Answer 1

You can use PHP to get the referer, however the variable I'm using is unreliable and can be spoofed but then again, everything in Javascript can be spoofed too.

error: function (request, status, error){
    send_error(status, error, request, "<?php echo $_SERVER['HTTP_REFERER'] ?>");
}

An alternative to this is to track the user over your website using sessions. Append each $_SERVER['REQUEST_URI'] in a $_SESSION['referer'] array and print the second last index directly to Javascript.