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

This code cancels backspace action.

window.onkeydown = function (event) {

    if (event.which == 8) { 

         event.preventDefault();   // turn off browser transition to the previous page 

                 // put here code you need 

        }; 

};