Function net::http_loader::obtain_response

async fn obtain_response(
    client: &Client<Connector, Body>,
    url: &ServoUrl,
    method: &Method,
    request_headers: &mut HeaderMap,
    body: Option<Arc<Mutex<IpcSender<BodyChunkRequest>>>>,
    source_is_null: bool,
    pipeline_id: &Option<PipelineId>,
    request_id: Option<&str>,
    is_xhr: bool,
    context: &FetchContext,
    fetch_terminated: UnboundedSender<bool>,
) -> Result<(HyperResponse<Decoder>, Option<ChromeToDevtoolsControlMsg>), NetworkError>