我有照大神的弄了，數量還是超過5個捏，是哪沒做好?

var select_server_table = $("#select_server_table_example").DataTable({
    processing: true,
    lengthChange: false,
    serverSide: true,
    lengthMenu: [5, 10, 15, 20],
    ajax: {
        url: "http://192.168.03.30:8000/api/ipc/all",   // fake api
        type: "GET",    
        // dataType : 'json',
        contentType: 'application/json', 
        data: function(d) {
            d.search = d.search.value;
            console.log(d);
            return JSON.stringify(d);
        },
        headers: {
            Authorization: "Bearer " + getToken,
        },
        dataSrc: function(response) {
            console.log("DATA", response);
            return response.ipcs;
        }
    },

    columns: [
        { data: "device_id", title: "device_id" },
        { data: "name", title: "name" },
        { data: "group", title: "group" },
        {
            data: null,
            title: "Server selecting",
        },
    ],

    error: function(response) {
        console.log("ERROR", response);
    }
});

select_server_table.draw();