docs: def set_cors_config(app):
      """
      Flask-Cors (3.x.x) extension set the config as CORS_*,
       But we'll hold the config in CORS key.
       This function will convert them to CORS_* values
      :param app:
      :return:
      """
      if "CORS" in app.config:
          for k, v in app.config["CORS"].items():
              _ = "CORS_" + k.upper()
              if _ not in app.config:
                  app.config[_] = v