Celia Chen 6ea62c4396 Resolve proxy routes for standalone web search redirects (#47204) ...

## Why

Standalone web search selected a proxy route only for the initial endpoint. Redirect destinations can require a different system proxy route.

## What changed

- Add `RouteAwareClientPool` support to `ReqwestTransport` for both buffered and streaming requests, and use it for standalone web search.
- Preserve default Codex headers and Cloudflare cookie handling across routes, while retaining the default client behavior when route-aware handling is disabled or Codex is sandboxed.
- Share request construction so URL authentication and header precedence follow `reqwest` semantics, applying them once before redirects and TLS retries.
- Map route-aware failures to transport errors and remove request URLs from those errors.

## Testing

Add regression coverage for redirects through distinct proxies, preservation of POST bodies and default headers, URL authentication and header precedence, and transport error classification without URL leakage.

GitOrigin-RevId: 19a10a62118846db09dd95265dc277e54aac09ef

2026-09-22 06:24:49 +00:00

..

src

Resolve proxy routes for standalone web search redirects (#47204)

2026-09-22 06:24:49 +00:00

BUILD.bazel

build: run buildifier from just fmt (#28125)

2026-06-13 21:43:39 -07:00

Cargo.toml

Honor system proxy settings for standalone web search (#47142)

2026-09-22 00:59:54 +00:00

web_run_description.md

[codex] Expand hosted web search citation guidance (#27501)

2026-06-11 03:30:44 +00:00