Simulation run on this device. Scenario values are not sent anywhere — the engine is fully local.
system design simulation · free
CORS Request Explainer
Walk through simple vs preflighted requests and the headers that decide.
Why did this request preflight but that one didn't?
Engine 1.0.0 · simulation
1
0
2
086400
- Config legal?
- yes
- Needs preflight?
- likely
- Preflight TTL
- 600 s
- Credentialed *
- n/a
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cred=1 wild=0 methods+2
Method
- Deterministic local model of the mechanism — knobs recompute outputs instantly with no network.
- Numbers are teaching approximations, not production capacity guarantees.