Preventing backspace key from return back

Following JavaScript avoid the action of backspace to return page to previous one.

Code:

document.onkeydown = function (event) {

    if (!event) {  
        event = window.event;
    }

    var currKCode = event.keyCode;

    if (currKCode == 8 &&
        ((event.target || event.srcElement).tagName != "TEXTAREA") &&
        ((event.target || event.srcElement).tagName != "INPUT")) { 

        if (navigator.userAgent.toLowerCase().indexOf("msie") == -1) {
            event.stopPropagation();
        } else {
        
            event.returnValue = false;
        }

        return false;
    }
};
 

_________________
M. S. Rakha, Ph.D.
Queen's University
Canada

Author: DrRakha
Mastermind

Posts: 2715
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