Hi Team

Environment:

• Runtime: Node.js (Bun) with native fetch (undici)
• SDK: AI SDK v6 + @openrouter/ai-sdk-provider
• Endpoint: POST /api/v1/chat/completions (streaming)

Error:
TypeError: terminated
at Fetch.onAborted (node:internal/deps/undici/undici:12707:53)
at Fetch.emit (node:events:508:28)
at Fetch.terminate (node:internal/deps/undici/undici:11866:14)
at Object.onError (node:internal/deps/undici/undici:12831:38)
at Request.onError (node:internal/deps/undici/undici:3019:31)
at Object.errorRequest (node:internal/deps/undici/undici:1897:17)
at TLSSocket.onHttpSocketClose (node:internal/deps/undici/undici:7637:14)
at TLSSocket.emit (node:events:520:35)
at node:net:346:12
at TCP.done (node:_tls_wrap:666:7)

Behavior:

• The streaming request starts successfully but the server closes the TLS connection before the response completes
• The error has no HTTP statusCode, no errorCode, no responseBody — just a raw TypeError with message "terminated"
• This makes it impossible to distinguish from client-side network issues or to apply retry logic based on status codes

Thanks