Edit File: admin-batch.min.js
"use strict";!function(o){var i={form:{beforeSubmit:function(a){var e=a.find('.pum-field-submit input[type="submit"]'),t=a.find(".pum-upgrade-messages"),s=a.find(".pum-batch-progress"),a=a.data("ays");return!e.hasClass("button-disabled")&&(!(void 0!==a&&!confirm(a))&&(s.removeClass("pum-batch-progress--active"),s.find("progress").prop("value",null),t.html(""),e.addClass("button-disabled"),o('<span class="spinner is-active"></span>').insertAfter(e),!0))}},complete:function(a){var e=a.parents(".pum-alert");a.find(".pum-field-submit, progress").hide(),o("p.pum-upgrade-notice").hide(),e.removeClass("pum-alert__warning").addClass("pum-alert__success"),e.prepend("<h2>"+pum_batch_vars.complete+"</h2>")},action:"pum_process_batch_request",process_step:function(a,r){var n=this;o.ajax({type:"POST",url:ajaxurl,data:{batch_id:r.batch_id,action:n.action,nonce:r.nonce,form:r.form,step:parseInt(a),data:r},dataType:"json",success:function(a){var e,t,s;a.data.done||a.data.error?(s=a.data.mapping?".pum-batch-import-form":".pum-batch-form",t=(e=o(s)).find(".spinner"),s=e.find(".notice-wrap"),e.find(".button-disabled").removeClass("button-disabled"),a.data.error?(t.remove(),s.html('<div class="updated error"><p>'+a.data.error+"</p></div>")):a.data.done?(t.remove(),s.html('<div id="pum-batch-success" class="updated notice"><p class="pum-batch-success">'+a.data.message+"</p></div>"),a.data.url&&(window.location=a.data.url)):s.remove()):(o(".pum-batch-progress div").animate({width:a.data.percentage+"%"},50),n.process_step(a.data.step,r))}}).fail(function(a){window.console&&window.console.log&&console.log(a)})}},s=o.extend(!0,{},i,{action:"pum_process_upgrade_request",process_step:function(a,n){var d=this;o.ajax({type:"POST",url:ajaxurl,data:{upgrade_id:n.upgrade_id,action:d.action,nonce:n.nonce,form:n.form,step:parseInt(a),data:n},dataType:"json",success:function(a){var e=o(".pum-upgrade-form"),t=e.find(".spinner"),s=e.find(".button-disabled"),r=e.find(".pum-upgrade-messages");a.data.done||a.data.error?(s.removeClass("button-disabled"),a.data.error?(t.remove(),r.prepend('<div class="notice notice-error notice-alt"><p>'+a.data.error+"</p></div>")):a.data.done?(r.prepend('<div class="notice notice-success"><p><strong>'+a.data.message+"</strong></p></div>"),a.data.next?(e.data("upgrade_id",a.data.next).data("step",1).data("ays",!1),d.process_step(1,{upgrade_id:a.data.next,nonce:n.nonce,form:n.form})):(s.parent().hide(),t.remove(),i.complete(e)),a.data.url&&(window.location=a.data.url)):""!==a.data.message&&r.prepend('<div class="notice"><p class="">'+a.data.message+"</p></div>")):(""!==a.data.message&&r.prepend('<div class="notice"><p class="">'+a.data.message+"</p></div>"),o(".pum-batch-progress").addClass("pum-batch-progress--active"),o(".pum-batch-progress progress.pum-task-progress").addClass("active").val(a.data.percentage),d.process_step(a.data.step,n))}}).fail(function(a){window.console&&window.console.log&&console.log(a)})}});window.PUM_Admin=window.PUM_Admin||{},window.PUM_Admin.batch=i,window.PUM_Admin.batch_upgrades=s,o(document).on("submit",".pum-batch-form[data-batch_id]",function(a){var e=o(this),t=e.find('input[type="submit"]'),s=e.data("ays"),r={batch_id:e.data("batch_id"),nonce:e.data("nonce"),form:e.serializeAssoc(),test:e.pumSerializeObject()};a.preventDefault(),t.hasClass("button-disabled")||void 0!==s&&!confirm(s)||(e.find(".notice-wrap").remove(),e.append(o('<div class="notice-wrap"><div class="pum-batch-progress"><div></div>')),t.addClass("button-disabled"),t.parent().append('<span class="spinner is-active"></span>'),i.process_step(1,r))}).on("submit",".pum-batch-form.pum-upgrade-form[data-upgrade_id]",function(a){var e=o(this),t={upgrade_id:e.data("upgrade_id"),nonce:e.data("nonce"),form:e.serializeAssoc(),test:e.pumSerializeObject()};a.preventDefault(),s.form.beforeSubmit(e)&&s.process_step(e.data("step")||1,t)})}(jQuery),jQuery(function(o){o.extend({arrayMerge:function(){for(var a,e={},t=0,s=o.arrayMerge.arguments,r=0;r<s.length;r++)if(Array.isArray(s[r])){for(var n=0;n<s[r].length;n++)e[t++]=s[r][n];e=o.makeArray(e)}else for(var d in s[r])s[r].hasOwnProperty(d)&&(isNaN(d)?("object"==typeof(a=s[r][d])&&e[d]&&(a=o.arrayMerge(e[d],a)),e[d]=a):e[t++]=s[r][d]);return e},count:function(a){return Array.isArray(a)?a.length:"object"==typeof a&&Object.keys(a).length}}),o.fn.extend({serializeAssoc:function(){for(var a={aa:{},add:function(a,e){var t=a.match(/^(.*)\[([^\]]*)]$/),s={};t?(t[2]?s[t[2]]=e:s[o.count(s)]=e,this.add(t[1],s)):"object"==typeof e?("object"!=typeof this.aa[a]&&(this.aa[a]={}),this.aa[a]=o.arrayMerge(this.aa[a],e)):this.aa[a]=e}},e=o(this).serializeArray(),t=0;t<e.length;t++)a.add(e[t].name,e[t].value);return a.aa}})});