Hi,
i use apache 2.4.38 as reverse proxy and did also get a 502 error when the webdav client from my KeePass try to initiate a MOVE.
Try to set the X-Forwarded-Proto header in my vhost config, but could not get it to work.
RequestHeader set "X-Forwarded-Proto" expr=%{REQUEST_SCHEME}
RequestHeader set "X-Forwarded-SSL" expr=%{HTTPS}
This is the link to the bug in wsgidav: https://github.com/mar10/wsgidav/issues/183
Anybody else maybe has a hint or idea to fix this or where to raise a bug report?