SyntaxError：JSON.parse：意外的字符，但在jsonlint上效果很好

Question

我试图从ajax中回复一个json响应，在这里我要求数据以及我在响应时所做的操作：

$.ajax({
    type: "post",
    dataType : "json",
    url: ea_map_ajaxurl,
    data: {
        action: 'get_markers_info',
        id : marker.id,
        ids_prodotti: marker.ids_prodotti,
        ids_owner: marker.ids_owner
    },
    success: function(data){
        response =  JSON.parse(data);

        $(response).each(function(){
            console.log(this.id);
        });
    }
});

这是json的回复，我已经使用jsonlint测试了它的有效性，但我无法管理。

[
    {
        "id": "938",
        "post_title": "Cooperativa Arvaia",
        "indirizzo": "n.p.",
        "term_taxonomy_id": [
            "117",
            "190"
        ],
        "latitudine": "45",
        "longitudine": "11"
    },
    {
        "id": "1226",
        "post_title": "Prova inserimento",
        "indirizzo": "Via le mani dal naso, 1",
        "term_taxonomy_id": [
            "184"
        ],
        "latitudine": "44.634",
        "longitudine": "11"
    },
    {
        "id": "1257",
        "post_title": "Osteria Rovescio",
        "indirizzo": "Via Pietralata 41",
        "term_taxonomy_id": [
            "109"
        ],
        "latitudine": "45.123",
        "longitudine": "10.732"
    }
]

这是我创建json的函数：

function getMarkersInfo() {
    global $wpdb;

    $id=$_POST['id'];
    $ids_prodotti=$_POST['ids_prodotti'];
    $ids_owner=$_POST['ids_owner'];

    $q=ea_db_get_marker_info($id,$ids_prodotti,$ids_owner);
    $infos=$wpdb->get_results($q, ARRAY_A);

    $json_info=Array();
    foreach ($infos as $info){
        if(! isset($json_info[$info['ID']])) {
            $json_info[$info['ID']]=Array(
                'id' => $info['ID'],
                'post_title' => $info['post_title']
            );
        }

        if($info['meta_key'] == 'ea_desc_indirizzo' && 
           !isset($json_info[$info['ID']]['indirizzo'])){
            $json_info[$info['ID']]['indirizzo']=$info['meta_value'];
        } elseif ($info['meta_key'] == 'ea_map_latitudine' && 
            !isset($json_info[$info['ID']]['latitudine'])) {
            $json_info[$info['ID']]['latitudine']=$info['meta_value'];
        } elseif ($info['meta_key'] == 'ea_map_longitudine' &&
            !isset($json_info[$info['ID']]['longitudine'])) {
            $json_info[$info['ID']]['longitudine']=$info['meta_value'];
        } 

        if (! isset($json_info[$info['ID']]['term_taxonomy_id']) ||
            ! in_array($info["term_taxonomy_id"],$json_info[$info['ID']]['term_taxonomy_id'])){
            $json_info[$info['ID']]['term_taxonomy_id'][]=$info["term_taxonomy_id"];
        }
    }

    echo json_encode($json_info);
    die();
}