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fix(node): Read syncBuiltinESMExports off the module namespace so Deno can load @sentry/node - #26155

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Nov 5, 2026
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logaretm merged 1 commit into
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@logaretm logaretm commented Nov 5, 2026 •

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Importing @sentry/node under Deno before 2.8.2 would fail due to #26086 named-imported syncBuiltinESMExports, which those versions only expose on the default export of node:module, fixed by reading it off the module namespace instead.

I found this while running an exports check on different runtimes, it is very low impact and severity as I don't expect deno users to run the Node SDK stuff there, but this didn't break before either. Feel free to close if too edgy.

…o can load @sentry/node

Deno before 2.8.2 has syncBuiltinESMExports only on the default export of
node:module, so the named import from #26086 failed to link and every ESM
import of @sentry/node threw.
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size-limit report 📦

Compared: 4a01849 (PR test merge using develop at c7d2764)

Against: c7d2764 (develop) · base run #65121

✅ Baseline matches: this diff contains only this PR's changes.

Path Size % Change Change
@sentry/browser 30.4 kB - -
@sentry/browser - with treeshaking flags 28.54 kB - -
@sentry/browser - with treeshaking flags tracing without tracing 28.43 kB - -
@sentry/browser (incl. Tracing) 52.73 kB - -
@sentry/browser (incl. Tracing + Span Streaming) 52.73 kB - -
@sentry/browser (incl. Tracing, Profiling) 55.7 kB - -
@sentry/browser (incl. Tracing, Replay) 93.03 kB - -
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags 81.63 kB - -
@sentry/browser (incl. Tracing, Replay with Canvas) 97.78 kB - -
@sentry/browser (incl. Tracing, Replay, Feedback) 110.77 kB - -
@sentry/browser (incl. Feedback) 47.98 kB - -
@sentry/browser (incl. sendFeedback) 35.5 kB - -
@sentry/browser (incl. FeedbackAsync) 40.61 kB - -
@sentry/browser (incl. Metrics) 31.44 kB - -
@sentry/browser (incl. Logs) 31.73 kB - -
@sentry/browser (incl. Metrics & Logs) 32.45 kB - -
@sentry/react 32.29 kB - -
@sentry/react (incl. Tracing) 55.1 kB - -
@sentry/vue 38.67 kB - -
@sentry/vue (incl. Tracing) 55.75 kB - -
@sentry/svelte 30.43 kB - -
@sentry/remix (Remix 3 client bundle) 57.82 kB - -
CDN Bundle 32.2 kB - -
CDN Bundle (incl. Tracing) 53.26 kB - -
CDN Bundle (incl. Logs, Metrics) 34.47 kB - -
CDN Bundle (incl. Tracing, Logs, Metrics) 55.2 kB - -
CDN Bundle (incl. Replay, Logs, Metrics) 75.88 kB - -
CDN Bundle (incl. Tracing, Replay) 91.47 kB - -
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) 93.4 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback) 97.58 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) 99.58 kB - -
CDN Bundle - uncompressed 94.67 kB - -
CDN Bundle (incl. Tracing) - uncompressed 157.67 kB - -
CDN Bundle (incl. Logs, Metrics) - uncompressed 101.14 kB - -
CDN Bundle (incl. Tracing, Logs, Metrics) - uncompressed 163.41 kB - -
CDN Bundle (incl. Replay, Logs, Metrics) - uncompressed 232.71 kB - -
CDN Bundle (incl. Tracing, Replay) - uncompressed 279.36 kB - -
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) - uncompressed 285.08 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed 293.06 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) - uncompressed 298.77 kB - -
@sentry/nextjs (client) 58.05 kB - -
@sentry/sveltekit (client) 53.24 kB - -
@sentry/core/server 44.25 kB - -
@sentry/core/browser 13.93 kB - -
@sentry/node 156.75 kB +0.02% +18 B 🔺
@sentry/node/import (ESM hook with diagnostics-channel injection) 82.28 kB - -
@sentry/node - without tracing 97.05 kB +0.02% +19 B 🔺
@sentry/node - without channel injection 137.07 kB +0.02% +17 B 🔺
@sentry/aws-serverless 105.41 kB +0.03% +23 B 🔺
@sentry/cloudflare (withSentry) - minified 200.67 kB - -
@sentry/cloudflare (withSentry) 499.05 kB - -
@sentry/nextjs/cloudflare (withSentry) - minified 222.67 kB - -

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@logaretm
logaretm marked this pull request as ready for review November 5, 2026 19:12
@logaretm
logaretm requested a review from a team as a code owner November 5, 2026 19:12
@logaretm
logaretm requested review from andreiborza and isaacs and removed request for a team November 5, 2026 19:12

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Yes, it's edgy, but not crashing is an improvement 👍

@logaretm
logaretm merged commit f547f64 into develop Nov 5, 2026
563 of 570 checks passed
@logaretm
logaretm deleted the awad/deno-fs-module-namespace-import branch November 5, 2026 19:59
43081j pushed a commit to 43081j/sentry-javascript that referenced this pull request Nov 9, 2026
…o can load @sentry/node (getsentry#26155)

Importing `@sentry/node` under Deno before 2.8.2 would fail due to
getsentry#26086 named-imported `syncBuiltinESMExports`, which those versions only
expose on the default export of `node:module`, fixed by reading it off
the module namespace instead.

I found this while running an exports check on different runtimes, it is
very low impact and severity as I don't expect deno users to run the
Node SDK stuff there, but this didn't break before either. Feel free to
close if too edgy.
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