How do I stop the Back and Refresh buttons from resubmitting my form?

Question

I am doing web development.

I have a page to do with credit card, which when user click \"refresh\" or \"Back\", the transaction will be performed one more time, wh

Answer 1

This code works for not back from current page me..

Here I put a code which helps you , not open contextmenu and on browser reload ask you leave a page or not...

I am trying the ask click on browser back button

jQuery( document ).ready(function() {

    document.onkeydown = fkey;
    document.onkeypress = fkey
    document.onkeyup = fkey;

    var wasPressed = false;

    function fkey(e){
        e = e || window.event;
        //alert(e.keyCode);
        if( wasPressed ) return; 


        if (e.keyCode == 116 || e.keyCode == 8 || e.keyCode == 17) {
                     // alert("f5 pressed");
                      window.onbeforeunload = null;
                      return true;
                 }

    }
window.onbeforeunload = function (event) {
    var message = ''; // Type message here

    if (typeof event == 'undefined') {
        event = window.event;
    }
    if (event) {
        event.returnValue = message;
    }

    return message;
};

jQuery(function () {

    jQuery("a").click(function () {
        window.onbeforeunload = null;
    });

    jQuery(".btn").click(function () {
        window.onbeforeunload = null;
    });

    //Disable part of page
    $(document).on("contextmenu",function(e){
        return false;
    });
});});

Thanks,