how to disable onbeforeunload on form submission

I want to implement onbeforeunload  on tab close but want to disable  onbeforeunload  on form submission :

$('input[type="submit"]').on("click", function (e) {
      window.onbeforeunload = function() {};
does not work.
it still shows leave confirmation message
Shiv Om SharmaSr. S/W DeveloperAsked:
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RobOwner (Aidellio)Commented:
$('input[type="submit"]').on("click", function (e) {
    // set a flag
    window.form_submit = true;

then in your onbeforeunload

$(window).on("beforeunload", function (e) {
    if (!form_submit) {
        // do what you want in the beforeunload

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Julian HansenCommented:
Building on Rob's post, here is some working code
  <p>Click this link to see the message <a href="">EE</a></p>
  <p>Submit the form to see the beforeunload is bypassed</p>
  <form action="reflect.php">
    <input type="submit">

Open in new window

jQuery / JavaScript
var message = true;
$(function() {
  $('form').submit(function() {
    message = false;
window.onbeforeunload = function(e) {
  if (message) {
    var dialogText = 'Dialog text here';
    e.returnValue = dialogText;
    return dialogText;

Open in new window

Working sample here
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