low severityCloudflare Workers, Miniflare (dev tool)
Error 1102 "Worker exceeded resource limits" (exceededCpu), despite low aggregate dashboard CPU time (e.g., 56ms avg but errors at 3000ms limit) [Forum post](https://www.answeroverflow.com/m/1460135885432688641). Local tests pass, prod fails.
Root cause
No documented accounting bug; errors from exceeding strict per-invocation CPU limits (10ms free/30s default paid), excluding I/O waits. Apparent discrepancies often aggregate metrics vs per-request; hardware/dev env diffs affect local testing [Miniflare #161](https://github.com/cloudflare/miniflare/issues/161).
Cloudflare WorkersCPU time limiterror 1102miniflarewranglerexceededCpu