AbortError 🟨 JavaScript

AbortError: The user aborted a request. / signal is aborted without reason

A fetch was cancelled through an AbortController (or the browser cancelled it).

Seen on: JavaScript

Meaning

Intentional cancellations (component unmount, new search request, timeouts via AbortSignal.timeout) raise AbortError; they usually shouldn’t be reported as failures.

Common causes

  • Component unmounted and aborted its fetch
  • Newer request superseding an older one
  • AbortSignal.timeout firing
  • React StrictMode double-invoking effects in development

⚡ Quick fix

  1. Ignore AbortError in catch blocks
  2. Distinguish TimeoutError from AbortError
  3. Make sure you don’t abort requests you still need

Detailed fix by platform

JavaScript

  1. catch (e) { if (e.name === 'AbortError') return; throw e; }

How to diagnose

  1. Trigger — Who called abort()?
  2. Intent — Expected cancellation?

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