Files
Arvin Xu 4c5c8795ef 🐛 fix(model-runtime): emit stop:abort instead of error when stream is aborted (#13677)
* 🐛 fix(model-runtime): emit stop:abort instead of error when stream request is aborted

When user cancels a streaming request, the provider SDK throws abort errors
(e.g. "Request was aborted"). Previously these were propagated as error chunks,
causing the client to display a provider error message. Now abort errors emit
a stop:abort event through the SSE pipeline, allowing the client to handle
cancellation gracefully.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* 🐛 fix(model-runtime): fix type error in abort pipeline test

Use `as const` for type literal to satisfy StreamProtocolChunk union type.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

*  test(fetch-sse): add planUpgradeAfterFinish to onFinish expectations

#15616 added planUpgradeAfterFinish to the onFinish context but missed
updating fetchSSE.test.ts, breaking 13 tests on canary.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* 🐛 fix(model-runtime): harden abort detection against non-Error throws

isAbortError assumed error.message is always a string, but catch
clauses receive unknown — a non-Error throw (string, object without
message) would make the abort check itself throw inside the stream
error handler, swallowing both ABORT_CHUNK and the first-chunk error.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-06-10 15:56:39 +08:00
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