message: fetch errors do not have responses
diff: @@ -188,10 +188,7 @@ export class Breadcrumbs implements Integration {
  getCurrentHub().addBreadcrumb(
  {
  category: 'fetch',
  - data: {
  - ...handlerData.fetchData,
  - status_code: handlerData.response.status,
  - },
  + data: handlerData.fetchData,
  level: Severity.Error,
  type: 'http',
  },
  