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An XMLHttpRequest error in a browser is nearly always CORS: the bucket has
to allow the origin that makes the request, and the server has to answer the
preflight OPTIONS request. Configure the bucket with the allowed origin,
allowed methods (PUT, POST, GET, HEAD) and allowed headers
(content-type, x-amz-*), and expose ETag in the response headers.
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abdullah230695 commentedon Nov 16, 2022
Have you solved this issue ?
arrrrny commentedon Oct 22, 2026
An
XMLHttpRequesterror in a browser is nearly always CORS: the bucket hasto allow the origin that makes the request, and the server has to answer the
preflight
OPTIONSrequest. Configure the bucket with the allowed origin,allowed methods (
PUT,POST,GET,HEAD) and allowed headers(
content-type,x-amz-*), and exposeETagin the response headers.arrrrny commentedon Oct 22, 2026
This ships in zuraffa_minio — the maintained fork of this package, which upstream has not touched since August 2025.
The fork keeps the API of the original package unchanged, so moving over is an import swap:
Source, the changelog and the sweep of the open issues of this tracker: https://github.com/arrrrny/zuraffa_minio