Apache proxy 502 when uploading files

[bobbyl140]

I set up Radicale yesterday, and it works perfectly with my IP over LAN. But when I set up Apache to proxy to Radicale, I can't seem to upload anything to the server. I went on the web UI and uploaded a single contact card, and got 502 Bad Gateway. I gave Radicale its own subdomain. Here is the Apache config:

<VirtualHost *:80>
        ServerName dav.example.com
        <Location "/">
                ProxyPass http://127.0.0.1:5232/
                ProxyPassReverse http://127.0.0.1:5232/
        </Location>
</VirtualHost>

What exactly am I doing wrong?
Thank you!

[pbiering]

Can you provide detailed logs from Apache and Radicale?