s3 storage serve won't work without this

[freesoul]

in the uwsgi config ini file : wsgi-disable-file-wrapper = true

Additionally, another ticket will be created in flask storage project regarding an issue with send_file + boto3 stream reader ...

[maudetes]

Thank you for the issue!
I've added the config in the front only .ini in #351.
Let me know if this is the modification you've applied on your side.

Since we don't use S3 storage for now, don't hesitate to open PR for fixes since you might come with better and faster solutions if you're currently using S3 storage.