I'm wondering if you plan to support proxies ? (for downloading config files)

As this might be complex, one other solution would be for calling code to provide an httpClient (there's already a method in Driver class bool Driver::setHttpClient(Internal::i_HttpClient *client)
but parameter is internal (and not accessible from Manager public api).
For example in my app, I already have my http layer which handle proxies, http redirections,.... (quite huge work).

But for that the i_HttpClient should be exposed...

I think giving ability of external code to provide an HttpClient could be a good solution; which allow to handle any custom behavior (proxy w/o authentication, redirections, ,...)

Would you like I make a PR about that ?