Statement
Form submissions shall pass through a layered server-side validation pipeline in this order: honeypot check, rate limiting, CAPTCHA verification, field validation, provider dispatch. Each layer shall return a typed JSON response with appropriate HTTP status code (200 success, 422 validation error, 429 rate limit, 403 authorization failure, 500 provider error).
Rationale
Layered pipeline ensures defense in depth: cheap checks first, expensive checks last. Typed response contract enables consistent client-side error handling. Delivered by WP-C8 (D-C8-06).
Topics
Owner: component-system
Applies To
- Forms & Submission DOC-00017