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JPeer264
added this pull request to stack #24670
September 23, 2026 16:19
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Deno's module hooks report no `format` for an ES module, so the orchestrion transform treated it as CommonJS and injected a `require()` that throws when the module loads. This broke `@sentry/node` on Deno for the ESM builds of libraries it instruments, such as the AI SDKs and `postgres`. The Deno load hook now restores the format of `.mjs` files and of `.js` files in a `"type": "module"` package, the same way it already did for JSON. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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removed this pull request from stack #24670
September 23, 2026 17:26
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added this pull request to stack #24671
September 23, 2026 17:31
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With
deno run --preload=npm:@sentry/deno/import, an instrumented library that ships an ES module build crashed on import withReferenceError: require is not defined. Deno's module hooks report noformatfor an ES module, so the orchestrion transform treated it as CommonJS and injected arequire()into it. This hit the ESM builds of the AI SDKs andpostgres, among others.The Deno load hook now restores the format of
.mjsfiles and of.jsfiles in a"type": "module"package, the same way it already did for JSON (#24412). It restores it on thenextLoadresult, because the transform reads the format there.Running the shared Node integration suites on Deno found this. The next PR in the stack runs them in CI; the Deno-only orchestrion suites did not catch it because they publish fake channel messages instead of loading the real libraries.
Part of #24052 and #23897.
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