S3Client is not using HTTP/2 althought it is available in the environment.

[hsq125]

Why is the S3Client not using HTTP/2 ?

    const params = {
      Bucket: environment.bucket,
      Key: key,
      Body: file,
      ContentType: file.type,
      Metadata: metadata
    };
    const command = new PutObjectCommand(params);
    const send = this.s3Client.send(command);

When looking at the protocol used in the Developer Tool > Network tab of the most recent Google Chrome version, I can see that HTTP/1.1 is used. Other request sent by my application are H2, which is a confirmation that is well supported by the browser.

Why this question ? I built a file uploader that sends files in parallel to S3. It can barely reach 50% of my asceding connection throughput (340 Mb/s over 800 Mb/s available). I was hoping to get perforancem improvments by configuring the client to use HTTP/2 or 3. But looks like there is no documented possibility to do it.

Any advice would be highly appreciated.
O.