# Error: The operation was aborted. (Edge Runtime: fetch aborted due to timeout or cancellation)

- **ID:** `nextjs/edge-runtime-fetch-abort`
- **Domain:** nextjs
- **Category:** network_error
- **Verification:** ai_generated
- **Fix Rate:** 80%

## Root Cause

In the Edge Runtime (e.g., middleware, edge API routes), fetch requests have a default timeout of 30 seconds and can be aborted by the runtime if the response is too slow or if the client disconnects.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| Next.js 13.x | active | — | — |
| Next.js 14.x | active | — | — |
| Next.js 15.x | active | — | — |
| Edge Runtime (Vercel) | active | — | — |

## Workarounds

1. **Optimize the external API response time (e.g., use caching, reduce payload size) to ensure it completes within 30 seconds. Alternatively, use a server-side data fetching pattern with incremental static regeneration (ISR) to avoid real-time fetch.** (80% success)
   ```
   Optimize the external API response time (e.g., use caching, reduce payload size) to ensure it completes within 30 seconds. Alternatively, use a server-side data fetching pattern with incremental static regeneration (ISR) to avoid real-time fetch.
   ```
2. **Move the fetch to a server component (Node.js runtime) where there is no 30-second timeout limit. Use the edge runtime only for lightweight operations.** (90% success)
   ```
   Move the fetch to a server component (Node.js runtime) where there is no 30-second timeout limit. Use the edge runtime only for lightweight operations.
   ```

## Dead Ends

- **** — The Edge Runtime has a hard limit of 30 seconds for fetch; this cannot be overridden. The config option may not exist or be ignored in edge. (80% fail)
- **** — The runtime will still abort at 30 seconds even if the AbortController signal is set to a longer timeout. (70% fail)
- **** — If the route is already on edge, the runtime is fixed; moving to Node.js may require other changes (e.g., removing edge-specific APIs). (50% fail)