window.onerror = function(error, url, line, column, errorObj) {
    if (error == 'TypeError: Attempted to assign to readonly property.') {
        return;
    }
    try {
        var stack = (errorObj && errorObj.stack) || "(no stack trace available)",
            url = document.location.pathname + ' at ' + url,
            text = url + "\n\nLine:" + line + "\n\n" + error + "\n\n" + stack;
        logError(text);
    } catch(e) {}
};

function logError(error) {
    if (document.location.hostname == 'speedtrans.pad.ma') {
        var request = new XMLHttpRequest();
        request.open('post', '/error', true);
        request.send(error);
    }
}