使用 AJAX、405 错误、可能的 CORS 问题向 Flask（表单提交）发送发布请求？

问：

我正在尝试在客户端使用 Ajax、jQuery 从表单提交发送 POST 请求。在服务器端使用 Flask 处理提交的数据。

首先，我将显示 post 请求，该请求遇到 405-method not allowed 错误消息。

$("#lucky-form").submit(function(e) {

e.preventDefault(); // avoid to execute the actual submit of the form.
console.log("running this form")

var form = $(this);
var actionUrl = form.attr('http://127.0.0.1:5000/numberapi');

$.ajax({
    type: "POST",
    url: actionUrl,
    data: form.serialize(), // serializes the form's elements.
    success: function(data)
    {
      alert(data); // show response from the php script.
    }
});

我已经安装了flask_cors并启用了CORS（app）以启用跨域请求（AJAX）。我认为错误不在于烧瓶路由本身，因为由于 405，不允许访问 POST 请求。我已经用 GET 对其进行了测试并获得状态 200 OK html 响应。

我相信这是在 JS/jQueryside 上发送请求的问题，但不确定它可能是什么。非常感谢您的帮助。

有关更多详细信息和上下文，这里是我的 Flask 路由，它应该接收和处理 POST 请求。

@app.route("/numberapi", methods=['GET','POST'])
@cross_origin()
def get_lucky_number():
"""recieves our AJAX request from the front end,"""
## here we will store the data of the users who use our lucky number app. 
#this is just for reference, and we can use the data at a later point. 
#when all of the inputted data is correct, we return the client with a lucky number and the fact
#we can collect data like what type of facts people want to know the most. 
form = LuckyNumberForm()
converted = json.loads(bytes.decode(request.data))
birth_year = converted.get('birth_year')
color = converted.get('color').lower()

if form.validate_on_submit():
    print("validated!")
    if  color not in valid_colors:
          print("error of color")
          form.color.errors = "Please pick a valid colour"
          retrieved = jsonify(errors=form.color.errors) 
          #currently returning undefined.
    
    elif valid_dob(birth_year) != True:
         print("error of dob")
         form.color.errors = "Please pick a valid birthyear between 1900 and 2000"
         retrieved = jsonify(errors=form.birth_year.errors)   
         #currently returning undefined
    else:
         
         year_fact = get_dob_fact(birth_year)
         number_fact = get_number_fact()

    print(year_fact) #this is json
    print(number_fact) #this is json
    return [year_fact,number_fact]


return "csrf validation did not pass"