Refresh MCP HTTP helper headers after authorization failures - #41400
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copyberry[bot] merged 1 commit intoAug 28, 2026
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## What changed - Re-run the HTTP headers helper after a same-origin `POST` receives a `401` or `403`, and retry the request once when the effective headers changed. - Share refreshes across concurrent rejected requests, retain the previous headers when refresh fails, and keep the retry within the original timeout. - Allow helpers to supply `Authorization` while preserving explicit OAuth or bearer credentials, OAuth insufficient-scope challenges, and redirect safety checks. ## Testing - Cover rotating helper headers for MCP tool calls and same-origin OAuth token refreshes. - Cover concurrent rejections, failed and unchanged refreshes, retry limits, timeouts, and redirects. GitOrigin-RevId: c662edefdb1cd2876d9d02545a72d5bd6739864f
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Refresh MCP HTTP helper headers after authorization failures
What changed
POSTreceives a401or403, and retry the request once when the effective headers changed.Authorizationwhile preserving explicit OAuth or bearer credentials, OAuth insufficient-scope challenges, and redirect safety checks.Testing