browser tabs open). Or if you want to leave fixed the possible URLs.

                If the servers `list` is not provided, or is an empty `list`, the
                default value would be a `dict` with a `url` value of `/`.

                Each item in the `list` is a `dict` containing:

                * `url`: A URL to the target host. This URL supports Server Variables

                            content_type_value = request.headers.get("content-type")
                            if not content_type_value:
                                json_body = await request.json()
                            else:
                                message = email.message.Message()
                                message["content-type"] = content_type_value