As stated in the title, we are experiencing 502 / bad gateway/proxy errors in the following environment: SVN over HTTPS through Apache on Windows 2008 R2. These errors occur specifically when doing copies, merge operations or branching.
As an additional note, we are using LDAP for authentication.
We've read through numerous posts with similar issues, but haven't been able to resolve our solution. This post seems similar, but the solutions given do not resolve it for us: https://stackoverflow.com/questions/2479346/502-bad-gateway-with-nginx-apache-subversion-ssl-svn-copy
Perhaps we are placing the following line of code in the wrong place? Can anyone give direction on where that should go specifically?
RequestHeader edit Destination ^https http early
The article quoted and linked below should set you on the right track:
Subversion behind an Apache Reverse Proxy (includes instructions to resolve issue and a mod_rewrite workaround which looks promising)