"redirect uri mismatch" Google & Discord Oauth

Hello everyone,

I'm trying to enable Google & Discord authentification with Flutter. I read all the thread about it, but still don't understand why it is not working on my side.

1. I have enable the provider in the console
2. I think I have set up everything on Discord & Console Side (App ID, App Secret, Callback URI)
3. But I have a "Redirect Uri Mismatch" error when I call : await account.createOAuth2Session(provider: OAuthProvider.discord,)

I use Cloudflare as reverse proxy, and HTTPS is enabled. It seems the error come from here.

While trying to fix this issue, another one happened : now, I have Error 412 : project_provider_disabled.
I took down then up the docker, I enabled/disabled the provider in the console, but having this issue.. Any idea ?

Appwrite SDK for Flutter version : 12.0.4
Appwrite docker version : 1.5.7

@bad_advice