Files
openclaw/src/agents/pi-embedded-helpers
Chris Yau 36dd58ac2a Prevent Codex HTML challenge pages from looking like DNS failures
Cloudflare challenge pages from chatgpt.com/backend-api can arrive as raw HTML without an HTTP status prefix. The transport sanitizer scanned for generic "dns" substrings before HTML detection, so these pages could surface as DNS lookup failures instead of the existing HTML/CDN block message.

Constraint: Must preserve DNS transport classification for real ENOTFOUND/getaddrinfo failures
Rejected: Treat every bare HTML document as an upstream HTML error | too broad for arbitrary model text/errors
Confidence: high
Scope-risk: narrow
Directive: Keep standalone HTML challenge detection ahead of generic transport keyword matching so CDN block pages do not regress into DNS copy
Tested: oxfmt --check on changed files; targeted node --import tsx verification for standalone Cloudflare HTML classification and DNS control case
Not-tested: Full Vitest shard run in this environment
2026-04-16 12:47:12 -07:00
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