Azure OAuth not working

[farrael004]

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• [X] I have searched the opened issues and there are no duplicates

Describe the bug

I copied the example from the documentation and modified it to make sure it would work with Azure. Then after providing the required IDs and secret, I ran into the following error:

Sorry, but we’re having trouble signing you in.

AADSTS9002325: Proof Key for Code Exchange is required for cross-origin authorization code redemption.

I can create a Flask application and login with it, but it would be nice to have this built-in solution working as well.

Code sample

Here is the code I took and modified from the documentation:

import os

import flet as ft
from flet.auth.providers import AzureOAuthProvider
import utils.config as config


def main(page: ft.Page):
    provider = AzureOAuthProvider(
        client_id=config.CLIENT_ID,
        client_secret=config.CLIENT_SECRET,
        redirect_url="http://localhost:8550/oauth_callback",
        tenant=config.TENANT_ID,
    )

    def login_click(e):
        page.login(provider)

    def on_login(e):
        print("Login error:", e.error)
        print("Access token:", page.auth.token.access_token)
        print("User ID:", page.auth.user.id)

    page.on_login = on_login
    page.add(ft.ElevatedButton("Login with Azure", on_click=login_click))


ft.app(main, port=8550, view=ft.WEB_BROWSER)

To reproduce

1. Create App registration in Azure Portal
2. Configure App registration appropriately according to the documentation. (Use the Single-page application option)
3. Run the code provided.
4. Try to login.

Operating System

Windows

Operating system details

Windows 10

Flet version

0.23.2

Regression

I'm not sure / I don't know

Suggestions

I can suggest taking a look at Microsoft's documentation:

https://learn.microsoft.com/en-us/entra/identity-platform/quickstart-web-app-python-flask?tabs=windows