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feat(core): Support SuppressedError in LinkedErrors integration - #25246

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timfish merged 6 commits into
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kunal649:kunal/feat/support-suppressed-error
Oct 14, 2026
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timfish merged 6 commits into
getsentry:developfrom
kunal649:kunal/feat/support-suppressed-error

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@kunal649

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SuppressedError is what JS throws when a cleanup (using / Symbol.dispose) fails while another error is already in flight. It keeps both errors, error (the new one) and suppressed (the original), and it has no cause. because of that, LinkedErrors never saw them. In Sentry I only got the generic wrapper message, "An error was suppressed during disposal".
Take a look , how it looks today (node SDK):

Screenshot 2026-10-11 195752

This change makes aggregateExceptionsFromError also follow error and suppressed, the same way it already follows cause and errors[], both errors now show up as chained exceptions. If a SuppressedError has another SuppressedError inside, it goes down the chain too.

And one thing I'm not sure about: I did not set is_exception_group on the wrapper. From #10850 i understand that flag makes sentry ignore that entry for grouping and titles, and that was a problem for cause errors. But the wrapper here has a meaningless message, so maybe it should be a group. (happy to change it if you prefer.)

I added tests for both errors, nested SuppressedErrors, non-Error values, and an error that only has an error property (it must not be treated as a SuppressedError).

Fixes #8441

@github-actions github-actions Bot added the external PR from an external contributor label Oct 11, 2026

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Comment thread packages/core/test/lib/utils/aggregate-errors.test.ts
@kunal649 kunal649 mentioned this pull request Oct 11, 2026
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timfish commented Oct 12, 2026

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Hey @kunal649 thanks for the PR. Looks good!

Can you add an integration test with using that's gated to Node v22 like this.

@JPeer264
JPeer264 requested review from JPeer264 and timfish October 12, 2026 12:24

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

There are 2 total unresolved issues (including 1 from previous review).

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Comment thread packages/core/src/utils/aggregate-errors.ts
@kunal649
kunal649 requested a review from a team as a code owner October 13, 2026 10:34
@kunal649
kunal649 requested review from mydea and removed request for a team October 13, 2026 10:34
@kunal649

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thanks @timfish, I've added an integration test at suites/public-api/suppressed-error. It uses using with a disposer that throws, & gated to Node 22+ describe.runIf(supports({ min: 22 })) like tedious example. It passes locally.
let me know if you'd like anything changed.

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LGTM. Waiting for a review from @timfish

@timfish
timfish enabled auto-merge (squash) October 14, 2026 17:53
@timfish
timfish merged commit 7471347 into getsentry:develop Oct 14, 2026
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nicohrubec pushed a commit that referenced this pull request Oct 15, 2026
This PR adds the external contributor to the CHANGELOG.md file, so that
they are credited for their contribution. See #25246

Co-authored-by: timfish <1150298+timfish@users.noreply.github.com>
@kunal649
kunal649 deleted the kunal/feat/support-suppressed-error branch October 15, 2026 17:09
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Handle SuppressedError

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