我使用 AJAX 和 flask 将数组从 js 文件传递并转换为 python 文件作为字典，出现预期的字节错误

Question

我有一个文件将用户输入附加到 object 中，然后将 object 附加到数组中。 我正在使用 flask 和 Ajax 将数组从我的 Javascript 文件传递到我的 Z23EEEB4347BDD7556BDDDDZ 文件，然后转换为a字典。 尝试执行此操作时出现预期的字节错误。

Traceback (most recent call last):
  File "/Users/tannerormanoski/opt/anaconda3/envs/PythonData/lib/python3.7/site-packages/flask/app.py", line 2464, in __call__
    return self.wsgi_app(environ, start_response)
  File "/Users/tannerormanoski/opt/anaconda3/envs/PythonData/lib/python3.7/site-packages/flask/app.py", line 2454, in wsgi_app
    return response(environ, start_response)
  File "/Users/tannerormanoski/opt/anaconda3/envs/PythonData/lib/python3.7/site-packages/werkzeug/wrappers/response.py", line 630, in __call__
    app_iter, status, headers = self.get_wsgi_response(environ)
  File "/Users/tannerormanoski/opt/anaconda3/envs/PythonData/lib/python3.7/site-packages/werkzeug/wrappers/response.py", line 616, in get_wsgi_response
    headers = self.get_wsgi_headers(environ)
  File "/Users/tannerormanoski/opt/anaconda3/envs/PythonData/lib/python3.7/site-packages/werkzeug/wrappers/response.py", line 562, in get_wsgi_headers
    content_length = sum(len(_to_bytes(x, "ascii")) for x in self.response)
  File "/Users/tannerormanoski/opt/anaconda3/envs/PythonData/lib/python3.7/site-packages/werkzeug/wrappers/response.py", line 562, in <genexpr>
    content_length = sum(len(_to_bytes(x, "ascii")) for x in self.response)
  File "/Users/tannerormanoski/opt/anaconda3/envs/PythonData/lib/python3.7/site-packages/werkzeug/_internal.py", line 108, in _to_bytes
    raise TypeError("Expected bytes")
TypeError: Expected bytes

这是我的 JS 文件中的代码。

let persons = [];

const addPerson = (ev)=>{
    ev.preventDefault(); //stop form from submitting
    const person = {
        name: document.getElementById("name").value,
        title: document.getElementById("title").value,
        role: document.getElementById("role").value,
        reports: document.getElementById("reportsTo").value,
        fact: document.getElementById("funFact").value
    }
    persons.push(person);
    document.forms[0].reset(); // to clear the form for the next entries

    //for display purposes only 
    console.warn('added' , {persons} );
    let pre = document.querySelector('#msg pre');
    pre.textContent = '\n' + JSON.stringify(persons, '\t', 2);
    const people = JSON.stringify(persons);
    $.ajax({
        url: "/test",
        type: "POST",
        contentType: "application/json",
        data: JSON.stringify(people)
    });

    //saving to localStorage
    //localStorage.setItem('SurveyResults', JSON.stringify(names) );
}

这是我的 py 文件中的代码

app = Flask(__name__,
            static_folder='static',
            template_folder='templates')


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

@app.route("/test", methods=["POST"])
def test():
    output = request.get_json()
    print(f'output: {output}, output type: {type(output)}') # This is the output that was stored in the JSON within the browser
    response = app.response_class(
        response=json.loads(output),
        status=200,
        mimetype='application/json'
    )

任何帮助将不胜感激，因为我已经尝试了很多研究，但我迷路了