Disable backspace and delete key with javascript in IE

Question

Anyone know how can I disable backspace and delete key with Javascript in IE? This is my code below, but seems it\'s not work for IE but fine for Mozilla.

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Answer 1

$(document).keydown(function(e) {
    if (e.keyCode === 8) {
        var element = e.target.nodeName.toLowerCase();
        if ((element != 'input' && element != 'textarea') || $(e.target).attr("readonly")) {
            return false;
        }
    }
});