Parse a Response object by its content type, to avoid a JSON.parse error

parseByContentType.ts

const parseByContentType = async <T = unknown>(data: Response): Promise<T> => {
  const contentType = data.headers.get('Content-Type');

  if (contentType === null) {
    console.log('contentType is null');
    return (await data.text()) as T;
  } else if (contentType.includes('application/json')) {
    return (await data.json()) as T;
  } else if (contentType.includes('text')) {
    return (await data.text()) as T;
    // add other cases as needed
  } else {
    console.log(`contentType: ${contentType} not handled`);
    return (await data.text()) as T;
  }
};