Thread

I installed recently the AppServ in my Windows. It is a software that install the last versions of Apache, PHP and MySQL and make them ready to use. But I noticed that a Javascript using jQuery is throwing this error:

[Exception… “‘Permission denied while calling XMLHttpRequest.open’ when calling method: [nsIDOMEventListener::handleEvent]” nsresult: “0x8057001e (NS_ERROR_XPC_JS_THREW_STRING)” location: “<unknown>” data: no]

It is working fine at my production server, but not locally. Can’t jQuery AJAX run locally? The code is:

$('#email').blur(function() {
    $('#login_msg').hide();
    var user_email=$('#email').val();
    if(user_email) {
        if(validate(user_email,'email*')) {
            $.post(
                'http://www.domain.tld/login/ajax/',
                { email: $('#email').val() },
                function(data,textStatus) {
                    if(data) {
                        $('#login_msg').html(data).fadeIn('slow');
                    }
                }
            );
        } else {
            $('#login_msg').html('Invalid Email address: '+$('#email').val()).fadeIn('slow');
        }
    }
});

I remember that in my own AJAX script, the XMLHttpRequest return 0 (zero) instead of 4 for success, when it runs in a local server. I don’t know why, but maybe this is the problem. Any idea?

I found the error… I was making it POST to my domain addres, so it will not work as HttpXMLRequest cannot load from another server… Already fixed.

Yep - a well know GOTCHA. You can’t do cross-domain requests yet. Firefox 3 is looking to support it I think which could lead to some very interesting mashups.