Apple sign in server callback not working

Hi everyone, we are developing Ionic mobile app with .NET server part, now we are trying to implement apple authorization, it works properly with web(user can authorize and server receives callback), but it is not working with mobile, we can authorize and get response on client side with token and code, but it not initiate callback to server, we found a difference in apple endpoint that we call for web and for mobile(in query parameters for mobile- response_mode = web_message and for web- response_mode = form_post), we can't change url for mobile app, because we are using SignInWithApple from @capacitor-community/apple-sign-in, does anyone have experience with this problem? Thanks in advance.