oidc auth requests http instead of https

Hello Folks,

Thank you for this great extension to dash.

I have just deployed an app to Azure App Service and it generally works well. The last thing that I have added is to integrated (Azure Entra/AD) as authentication method. It seems to work in general, but for some reason even when I type in https://{appname}.{region}.azurewebsites.net the auth module requests a redirect_uri with http instead of https (see screenshot below). The AD administration team of course wants me to use https and I myself want that as well.

Every app deployed on Azure App Service has a certificate/ssl/https on board and should be usable. At least that's my understanding. Does someone have a hint what I can do about this?

I currently start the server as following:

if __name__ == '__main__':
    app.run_server(host='0.0.0.0', port=int(os.environ.get('PORT', 8050)))

Any help is much appreciated.

Have a good day

Start at the OIDC redirect-URI construction used by dash-auth and compare it with the supplied app.run_server entry point under Azure App Service. Reproduce the reported HTTP redirect while accessing the app via HTTPS, then verify that the generated URI preserves HTTPS and that the authentication flow still works.