location /radicale/ { 
# The trailing / is important!
    proxy_pass        http://localhost:5232/; # The / is important!
    proxy_set_header  X-Script-Name /radicale;
    proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header  Host $http_host;
    proxy_pass_header Authorization;
    proxy_set_header     X-Remote-User $remote_user; # allow automatic authentication using proxy credentials
    # to prevent timeouts importing huge calendars or contacts lists
    proxy_send_timeout 600;
    proxy_read_timeout 600;
}