add(considered): defer 419 Purpose Declined pending operational adoption - #212
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draft-ietf-httpbis-pre-denied (revised 2026-09-09) defines 419 for refusing a request by its declared Sec-Purpose. Recorded as too-early: unregistered at IANA, no client treats it differently from any other refusal, Sec-Purpose itself is Limited availability, and 419 collides with Laravel's unofficial "Page Expired". Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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September 11, 2026 17:13
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Records the draft 419 Purpose Declined status code as
too-early, with a revisit criterion based on registration and documented operational adoption.The entry explains the draft's intended benefit: server operators can distinguish deliberate refusals of speculative requests from service failures or access errors. The draft explicitly introduces no new client capability, so different browser handling is not a prerequisite for its usefulness.
Deferral rests on the draft's status and limited deployment evidence. The entry retains the existing browser-support context and the site's example of recognising speculative requests in crawler statistics.
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