Prepare app for working behind a proxy (nginx).

Adapt user form

common/extensions.py

@@ -8,6 +8,7 @@ from flask_cors import CORS
 from flask_socketio import SocketIO
 from flask_jwt_extended import JWTManager
 from flask_session import Session
+from flask_wtf import CSRFProtect
 
 from .utils.key_encryption import JosKMSClient
 
@@ -15,6 +16,7 @@ from .utils.key_encryption import JosKMSClient
 db = SQLAlchemy()
 migrate = Migrate()
 bootstrap = Bootstrap()
+csrf = CSRFProtect()
 security = Security()
 mail = Mail()
 login_manager = LoginManager()