调用response.json（）时获取错误

Question

在我的API类中，我有一个如下代码，

let response;
try {
  response = await fetch(requestUrl, {
    method: 'POST',
    headers,
    timeout: REQUEST_TIMEOUT_MS,
    body: JSON.stringify({
      id,
      accNumber: acctId,
      invNumber: invId,
      fromDate,
      toDate
    })
  });
} catch (error) {
  throw new Error(
    'Unexpected error occurred while invoking ATOM Invoice API',
    error
  );
}
foo(cloneDeep(response));
const result = await response.json();
--- some more code ---

然后在另一个课程中，我实施了foo方法，

async foo(response){
    let result;
    let errorDescription;
    try {
      result = await response.json();
    } catch (error) {
      logger.error(JSON.stringify(error));
    }
    --- some more code ---
}

运行上面的代码时，我从foo函数抛出了以下错误：

{
    "name": "FetchError",
    "message": "response timeout at <my request URL in here> over limit: 10000",
    "type": "body-timeout"
}

我想知道为什么会这样，我该怎么做才能避免这种情况。提前谢谢！