S3 Backup: "Unsupported header 'x-amz-checksum-mode' received for this API call."

[cloudrootab]

Are you using XOA or XO from the sources?

XO from the sources

Which release channel?

None

Provide your commit number

97230

Describe the bug

After updating to 97230 I started getting Unsupported header 'x-amz-checksum-mode' received for this API call. when doing XO Metadata backups to S3 (Backblaze)

Under Settings/Remotes. The connection is stated as failed.
Endpoint: s3.eu-central-003.backblazeb2.com

Error message

"Unsupported header 'x-amz-checksum-mode' received for this API call."
{
  "name": "InvalidArgument",
  "$fault": "client",
  "$metadata": {
    "httpStatusCode": 400,
    "requestId": "<redacted>",
    "extendedRequestId": "<redacted>",
    "attempts": 1,
    "totalRetryDelay": 0
  },
  "Code": "InvalidArgument",
  "message": "Unsupported header 'x-amz-checksum-mode' received for this API call."
}

To reproduce

1. Go to '...'
2. Click on '...'
3. Scroll down to '...'
4. See error

Expected behavior

The connection to S3 (Backblaze) and subsequent backups should work.

Screenshots

No response

Node

v22.14.0

Hypervisor

xcp-ng 8.3

Additional context

No response

[cloudrootab]

Some further throubleshooting:
This breaks when applying commit: a386680d90bee4fe9987aebc8fb8001a08f240d2

[cloudrootab]

Seems that Backblaze doesn't support these flags.
https://www.backblaze.com/docs/cloud-storage-use-the-aws-sdk-for-javascript-v3-with-backblaze-b2

[plane-sync-vates]

Synced Issue with Plane Workspace 🔄

XO-764 S3 Backup: "Unsupported header 'x-amz-checksum-mode' received for this API call."