$(document).on("beforeSubmit", "#password-form", function (e) { let form = $(this); let formData = form.serialize(); let location = document.location.href; location = location.split('='); formData = formData.split('='); console.log(formData[2]); $.ajax({ url: 'ajax', type: 'POST', data: { id: location[1], password: formData[2], }, password: formData[2], success: function (response) { window.location.replace('index'); }, error: function () { } }); });