Upload file to S3 via browser cause a OPTIONS on each PUT of file chunk

[cesco69]

I'm loading file from my website frontend example.com to my S3 bucket example.s3.eu-west-1.amazonaws.com, with this code:

    const { S3Client } = require('@aws-sdk/client-s3');
    const { Upload } = require("@aws-sdk/lib-storage");

    const s3Client = new S3Client({
        region: region,
        credentials: {
            accessKeyId: access_key,
            secretAccessKey: secret_key,
            sessionToken: security_token,
        }
    });
    const uploadParams = {
        Bucket: bucket_name,
        Key: key,
        Body: file
    };
    const uploader = new Upload({
        client: s3Client,
        params: uploadParams,
        queueSize: 4, // optional concurrency configuration
        partSize: 1024 * 1024 * 5, // optional size of each part, in bytes, at least 5MB
        leavePartsOnError: false, // optional manually handle dropped parts
    });

    uploader.done().then(console.log).catch(console.error)

Into the chrome's developer tool networks, i see a PUT request for each chunk of the file uploaded to S3, but also a OPTIONS request for each PUT:

Any way for fix all those cors request?

[github-actions[bot]]

Hello! Reopening this discussion to make it searchable.