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Notes from the build.

Architecture, .NET, cloud, AI, and graph databases — written from production, not theory.

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Featured · June 26, 2026 · 6 min

Two Bugs Hiding in Our OpenTelemetry Pipeline: CORS Preflights and the NUL Byte That Killed a Whole Batch

Two silent production bugs in an OTLP-based observability pipeline — one blocking all browser telemetry clients, one dropping entire log batches — exposed how quickly boundary gaps become blind spots. Here's the root cause, the fix, and the repro for each.

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