GET https://site.com/%22//assets//images//f2f2a.jpg/%22 404- 

VM4398:1 Uncaught SyntaxError: Invalid or unexpected token at doDecode (ext-all.js:21) at Object.decode (ext-all.js:21) at Ext.form.Action.Submit.handleResponse (utilities.js:308) at Ext.form.Action.Submit.processResponse (ext-all.js:21) at Ext.form.Action.Submit.success (ext-all.js:21) at o (ext-all.js:21) at Ext.data.Connection.s (ext-all.js:21) at HTMLIFrameElement.I (ext-all.js:21) 

{"success":true,"message":"","total":0,"data":[],"object":{"id":1,"type":"document","contentType":"text\/html","alias":"index","alias_visible":true,"published":true,"pub_date":0,"unpub_date":0,"parent":0,"isfolder":false,"richtext":true,"template":1,"menuindex":0,"searchable":true,"cacheable":true,"createdby":1,"createdon":"2018-12-29 13:37:20","editedby":1,"editedon":"2019-03-02 20:14:36","deleted":false,"deletedon":0,"deletedby":0,"publishedon":0,"publishedby":0,"donthit":false,"privateweb":false,"privatemgr":false,"content_dispo":0,"hidemenu":false,"class_key":"modDocument","context_key":"web","content_type":1,"uri":"index.html","uri_override":0,"hide_children_in_tree":0,"show_in_tree":1,"content2":"\u041f\u043b\u0430\u0442\u043d\u043e\u0435 \u0432\u0438\u0434\u0435\u043e\r\n<img src=\"\/assets\/images\/f2f2a.jpg\">","create-resource-token":"5c7ab9eca22c59.00272120","reloaded":"0","parent-original":"0","parent-cmb":"","syncsite":1,"action":"resource\/update","resource_groups":"[{\"id\":4,\"name\":\"autors\",\"access\":false,\"menu\":null},{\"id\":1,\"name\":\"Office\",\"access\":false,\"menu\":null}]","preview_url":"https:\/\/site.com\/"}}

switch ($modx->event->name) {
	case 'OnMODXInit':
        $modx->map['modResource']['fields']['content2'] = NULL;
        $modx->map['modResource']['fieldMeta']['content2'] = array(
               'dbtype' => 'mediumtext',
               'phptype' => 'string',
               'index' => 'fulltext',
               'indexgrp' => 'content_ft_idx'
        );
break;
		
case 'OnDocFormRender':
        $modx->controller->addLastJavascript($modx->getOption('assets_url') . 'components/js/mgr/field.js');
        break;

Ext.override(MODx.panel.Resource, {
    getParentMainLeftFields: MODx.panel.Resource.prototype.getMainLeftFields,
    //class_key
    getMainLeftFields: function (config) {

        var ParentMainLeftFields = this.getParentMainLeftFields.call(this, config);
        
        ParentMainLeftFields.push({
            xtype: 'textarea'
                    ,fieldLabel: 'resource_content2'
                    ,description: '<b>[[*content2]]</b><br />'
                    ,name: 'content2'
                    ,id: 'modx-resource-content2'
                    ,grow: true
                    ,anchor: '100%'
                    ,value: config.record.content2 || ''
        });
        return ParentMainLeftFields;
    }
});