alibabacloud-oss-browser-upload-cors-diagnosis

【开发与工程】Read-only diagnosis of browser/mini-program direct-upload failures and OSS CORS: preflight OPTIONS rejected, CORS rule missing/not effective, no Access-Control-Allow-Origin, expose-headers gaps (ETag / x-oss-request-id), PostObject policy issues. Templates only; never writes. Triggers: "upload reports CORS error", "CORS config not working", "browser …

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