Uncaught SyntaxError: Unexpected token F in JSON at position 1

/* ===================================================== Field Search - Сортировка новостей пользователями по доп полям и не только ----------------------------------------------------- Автор : Gameer ----------------------------------------------------- Site : http://gameer.name/ ----------------------------------------------------- Copyright (c) 2016 Gameer ===================================================== Данный код защищен авторскими правами */ var back_url = window.location.pathname; var back_title = document.title; var back_speedbar = document.getElementById("dle-speedbar"); $(function(){ $('body').on('click', '[data-fieldsearch=submit]', function() { var $filter_field = $(this).closest('form').serialize(); window.history.replaceState(null, null, "/"); ShowLoading("Ищем... ищем... ищем..."); $.post(dle_root + "engine/ajax/field_search.php", { form_field : $filter_field }, function(data){ if(data) { window.history.replaceState(null, null, "/"); var content = jQuery.parseJSON( data ); $("#dle-content1").remove(); $("#dle-content").css("display", "none"); $("#dle-content").before("<div id=\"dle-content1\">" + content.content + "</div>"); window.history.replaceState(null, null, content.url); } }); HideLoading(""); return false; }); $('body').on('click', '.field_search_nav > a', function() { var $filter_field = $( this ).attr("href"); window.history.replaceState(null, null, "/"); ShowLoading("Ищем... ищем... ищем..."); $.post(dle_root + "engine/ajax/field_search.php", { form_field : $filter_field, filter_nav : 1 }, function(data){ if(data) { window.history.replaceState(null, null, "/"); var content = jQuery.parseJSON( data ); document.title = content.meta_title; $("#dle-speedbar").html(content.speedbar); $("#dle-content1").remove(); $("#dle-content").css("display", "none"); $("#dle-content").before("<div id=\"dle-content1\">" + content.content + "</div>"); window.history.replaceState(null, null, content.url); } }); HideLoading(""); return false; }); $( "[data-filtertriger=fieldseacrh]" ).change(function() { var $filter_field = $( this ).serialize(); window.history.replaceState(null, null, "/"); ShowLoading("Ищем... ищем... ищем..."); $.post(dle_root + "engine/ajax/field_search.php", { form_field : $filter_field }, function(data){ if(data) { window.history.replaceState(null, null, "/"); var content = jQuery.parseJSON( data ); $("#dle-content1").remove(); $("#dle-content").css("display", "none"); $("#dle-content").before("<div id=\"dle-content1\">" + content.content + "</div>"); window.history.replaceState(null, null, content.url); } }); HideLoading(""); }); $('body').on('click', '[data-fieldsearch="reset"]', function() { window.history.replaceState(null, null, back_url); ShowLoading("Секунду..."); document.title = back_title; $("#dle-speedbar").html(back_speedbar); $('[data-filtertriger=fieldseacrh] input[type="text"]').each(function(i){ if($(this).attr('name') != undefined) { if($(this).attr('name').indexOf('r-') + 1) { var slider = $(this).data("ionRangeSlider"); slider.update({ from: slider.options.min, to: slider.options.max }); } else { $(this).val(''); } } }); $('[data-filtertriger=fieldseacrh] select').each(function(i){ $(this).children('option').each(function(n){ $(this).attr('selected', false); }); }); $('[data-filtertriger=fieldseacrh] input[type="radio"], [data-filtertriger=fieldseacrh] input[type="checkbox"]').each(function(i){ $(this).attr('checked', false); }); $("#dle-content1").remove(); $("#dle-content").css("display", "block"); HideLoading(""); return false; }); });