Girder-readme plugin blocked by CORS

[Docteur-RS]

The girder-readme plugin is blocked by CORS. It was working great on a previous Girder install I had a few month ago.

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Now I have the following CORS errors:

Access to XMLHttpRequest at 'https://storage.gra.cloud.ovh.net/demo/README?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ac5c7ec68304d28f3b7%2004%2Fgra%2Fs3%2Faws4_request&X-Amz-Date=2022004T151508Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=98788c18d4606e4f1fd64358b849785d64ec6' (redirected from 'http://127.0.0.1:8080/api/v1/folder/633c49c6553c0d/readme') from origin 'http://127.0.0.1:8080' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
girder_lib.min.js:39 0 error undefined

girder_lib.min.js:39          GET https://storage.gra.cloud.ovh.net/demo/README?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ac5c7ec6aa68f3b7%2F20204%2Fgra%2Fs3%2Faws4_request&X-Amz-Date=2024T151508Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=98788c18d460849785d64ec6 net::ERR_FAILED

Also tried from a Girder exposed over DNS and not localhost and the result is the same.

Am I the only one having this issue ?

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Readme file is stored in an S3 bucket at OVH
Using Girder 3.1.8