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Arcjet · Method

decision.isErrored

decision.isErrored() tells you that Arcjet encountered an unrecoverable error. Log the error and normally allow the request because Arcjet fails open.

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Syntax

decision.isErrored()

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  • protect()
  • ArcjetDecision
  • ERROR result
  • decision.reason.message
  • fail open

Source: Arcjet best practices. Checked 2026-11-03.