Fix early OTel proxy tracers in Cache Components prerenders#95317
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Additional Suggestion:
The production fix for early OTel proxy tracers is missing: instrumentation-node-extensions.ts only patches provider.getTracer, not provider.getDelegateTracer, so tracers acquired before provider registration run startSpan inside the prerender work-unit context and trigger Cache Components dynamic-access errors.
gnoff
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Jul 1, 2026
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Best reviewed with hide whitespace.
Why?
Cache Components prerenders can fail when an OpenTelemetry tracer is acquired before provider registration and later resolves through proxy tracer delegation:
Current behavior: https://github.com/vercel/next.js/actions/runs/28518518762/job/84536475151?pr=95317#step:32:343
How?
Patch proxy tracer delegation to apply the same Cache Components span instrumentation used for normal tracer lookup.
Closes #94753