Created attachment 191988 [details]
nginx options

Here are the options I used to compile nginx:
(see nginx-options I attached)
And here's what the newly installed nginx binary thinks about how it was configured:
% /usr/local/sbin/nginx -V
nginx version: nginx/1.12.2
built with OpenSSL 1.0.2k-freebsd  26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/usr/local/etc/nginx --with-cc-opt='-I /usr/local/include' --with-ld-opt='-L /usr/local/lib' --conf-path=/usr/local/etc/nginx/nginx.conf --sbin-path=/usr/local/sbin/nginx --pid-path=/var/run/nginx.pid --error-log-path=/var/log/nginx/error.log --user=www --group=www --modules-path=/usr/local/libexec/nginx --with-file-aio --with-threads --without-mail_imap_module --without-mail_pop3_module --without-mail_smtp_module --http-client-body-temp-path=/var/tmp/nginx/client_body_temp --http-fastcgi-temp-path=/var/tmp/nginx/fastcgi_temp --http-proxy-temp-path=/var/tmp/nginx/proxy_temp --http-scgi-temp-path=/var/tmp/nginx/scgi_temp --http-uwsgi-temp-path=/var/tmp/nginx/uwsgi_temp --http-log-path=/var/log/nginx/access.log --with-http_addition_module --with-http_auth_request_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_realip_module --with-pcre --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-stream_ssl_module --add-module=/wrkdirs/usr/ports/www/nginx/work/nginx-dav-ext-module-0.1.0 --with-stream=dynamic --add-dynamic-module=/wrkdirs/usr/ports/www/nginx/work/ngx_devel_kit-0.3.0 --add-dynamic-module=/wrkdirs/usr/ports/www/nginx/work/nginx-auth-ldap-42d195d --add-dynamic-module=/wrkdirs/usr/ports/www/nginx/work/ngx_http_auth_pam_module-1.5.1 --add-dynamic-module=/wrkdirs/usr/ports/www/nginx/work/ngx-fancyindex-0.4.2 --add-dynamic-module=/wrkdirs/usr/ports/www/nginx/work/lua-nginx-module-0.10.11

Let me be even more specific here:
% /usr/local/sbin/nginx -V 2>&1 | grep with-http_dav_module
%

As you can see, no webdav support whatsoever. How did the person who last "fixed" the port manage to break this?