I can't save files to a Minio bucket any longer on SerializationError (HTTP 400)

[asitemade4u]

Hi, Thank you for the very useful package!

First, let me be clear: the error is probably NOT a bug of the package, but mine. I just would like to have some insights on the reason of the error. From what I read on the Web, the error could be caused by a firewall.

• I have used s3fs without a glitch with self-hosted Minio for months.
• Then, suddenly, approx. 3 weeks ago, I have been unable to save any file into buckets.

The error is:

Error: SerializationError (HTTP 400). failed to read from query HTTP response body

I have checked everything:

• Minio secrets
• my code which did not change
• the type of file involved
• I have sanitized the filename to save
• curl -I http://[my_minio_server_IP]:9000/minio/health/live returns OK

To no avail. Please help, S.