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fix(nextjs): Enable fetch span when OTel setup is skipped #17699

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Merged
merged 2 commits into from
Sep 19, 2025
+5 −2
Merged

fix(nextjs): Enable fetch span when OTel setup is skipped #17699

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1d2514e
fix otel fetch disabling
s1gr1d Sep 18, 2025
4426427
don't check hasSpansEnabled
s1gr1d Sep 19, 2025
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7 changes: 5 additions & 2 deletions packages/nextjs/src/server/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -106,9 +106,12 @@ export function init(options: NodeOptions): NodeClient | undefined {
}),
);

// Turn off Next.js' own fetch instrumentation
// Turn off Next.js' own fetch instrumentation (only when we manage OTEL)
// https://github.com/lforst/nextjs-fork/blob/1994fd186defda77ad971c36dc3163db263c993f/packages/next/src/server/lib/patch-fetch.ts#L245
process.env.NEXT_OTEL_FETCH_DISABLED = '1';
// Enable with custom OTel setup: https://github.com/getsentry/sentry-javascript/issues/17581
if (!options.skipOpenTelemetrySetup) {
process.env.NEXT_OTEL_FETCH_DISABLED = '1';
}

// This value is injected at build time, based on the output directory specified in the build config. Though a default
// is set there, we set it here as well, just in case something has gone wrong with the injection.
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