ExternalInterface as3 and ajax (jQuery) not working in IE

Question

this part of code works in all browsers but not in IE. Can you help me fix this?

function getData(userId, instrumentId, minStep) {
    alert(1); // worked!
    console.log(userId, instrumentId, minStep);
    $.ajax({
        type: "POST",
        url: '/controllers/ajax.php',
        data: "instrument=" + instrumentId + '&user=' + userId,
        dataType: 'json',
        cache: false,
        success: function(msg) {
            alert(2); // doesn't work
            document.getElementById("chart").dataFromJS(msg, minStep); // "chart" - id of flash player object loaded using swfobject
        }
    })
}

Answer 1

I had a similar problem and it was something really stupid, at least after I realized what was. Try to don't use console.log in IE... maybe will be the same, good luck ;)