Unable to requests.delete() from Python flask program

Dear All,

I am perfectly able to add domains to my allowlist programmatically via my Python flask rest API program:

import requests
import json
from flask import Flask, request
from flask_cors import CORS
app = Flask(__name__)
cors = CORS(app)

BASE_URL = "https://api.nextdns.io/profiles"
HEADERS = {
    "Content-type": "application/json",
    'x-api-key': "my_secret_api_token",
}

@app.route('/add_to_allowlist/<profile_id>', methods=['POST'])
def add_to_allowlist(profile_id):
    domain = request.data.decode() # gives "googleapis.com"
    post_dict = {
        "id": domain,
        "active": True,
    }
    response = requests.post(
        f'{BASE_URL}/{profile_id}/allowlist', json=post_dict, headers=HEADERS)
    print(response.content.decode("UTF-8"))
    return response.content.decode("UTF-8")

However, when I try to delete an entry, I get {"errors":[{"code":"internalServerError"}]}. I have read many online documentation on how to write delete requests and have tried several attempts with the NextDNS API (changing URLs, payload format, header parameters, ...), but can  not get it to work:

@app.route('/remove_from_allowlist/<profile_id>', methods=['DELETE'])
def remove_from_allowlist(profile_id):
    domain = request.data.decode() # gives "googleapis.com"
    post_dict = {
        'id': domain,
        "active": True,
    }
    response = requests.delete(
        f'{BASE_URL}/{profile_id}/allowlist', json=post_dict, headers=HEADERS)
    print(response.content.decode("UTF-8"))
    return response.content.decode("UTF-8")

At this point, I'd appreciate any help :-) !

My allowlist under https://api.nextdns.io/profiles/profile_id/allowlist looks like this:

{"data":[{"id":"googleapis.com","active":true}]}

Looking forward to feedback; Thanks in advance for your time!

David