4-9 GET연습 구간에서 콘솔창에 orders 가 안나옵니다 ㅠㅠ

from flask import Flask, render_template, request, jsonify
app = Flask(__name__)

from pymongo import MongoClient
client = MongoClient('mongodb+srv://test:sparta@cluster0.5fnwqsu.mongodb.net/?retryWrites=true&w=majority')
db = client.dbsparta

@app.route('/')
def home():
   return render_template('index.html')

@app.route("/mars", methods=["POST"])
def web_mars_post():
    name_receive = request.form['name_give']
    address_receive = request.form['address_give']
    size_receive = request.form['size_give']
    doc = {
        'name' :name_receive,
        'address' : address_receive,
        'size' : size_receive
    }
    db.mars.insert_one(doc)

    return jsonify({'msg': '주문 완료!!'})

@app.route("/mars", methods=["GET"])
def web_mars_get():
    order_list = list(db.mars.find({}, {'_id': False}))
    return jsonify({'orders': order_list})

if __name__ == '__main__':
   app.run('0.0.0.0', port=5000, debug=True)

function show_order() {
    $.ajax({
        type: 'GET',
        url: '/mars',
        data: {},
        success: function (response) {
           console.log(response)
        }
    });
}