Comment 7 for bug 1853635

I believe this is the oslo sizelimit middleware [1]. I'm by no means an expert on it, but based on [2] if you sent [oslo_middleware]/max_request_body_size to a large number, if *should* fix this. Can you try that and report? Thanks!

[1] https://github.com/openstack/oslo.middleware/blob/master/oslo_middleware/sizelimit.py
[2] https://docs.openstack.org/oslo.middleware/latest/configuration/index.html#configuration-from-the-application