From the Feishu pack field report (#186 (comment), item 6b): when something other than a gateway listens on the configured port (a dev server in the report's case), registration fails with an error embedding a complete Next.js HTML document. The information-discipline rule elsewhere in the OC provider is bounded quoting (error snippets ≤ 512 chars); the health-check path should truncate the body the same way, or report status + content-type only.
From the Feishu pack field report (#186 (comment), item 6b): when something other than a gateway listens on the configured port (a dev server in the report's case), registration fails with an error embedding a complete Next.js HTML document. The information-discipline rule elsewhere in the OC provider is bounded quoting (error snippets ≤ 512 chars); the health-check path should truncate the body the same way, or report status + content-type only.