The nginx.conf now considers common "/.well-known/" files (e.g caldav, carddav).

.templates/nginx/nginx.conf

@@ -22,8 +22,8 @@ server {
     access_log $PAR_SERVICE/logs/web/error.log combined if=$errorlog_$PAR_PROXYPORT;
 
     # Let's Encrypt (acme.sh) support.
-    location /.well-known/ {
-        proxy_pass http://$PAR_ACMEHOST:$PAR_ACMEPORT;
+    location ~ ^(/\.well-known/(?!(caldav|carddav|nodeinfo|webfinger)).*$) {
+        proxy_pass http://localhost:8100;
         error_page 500 502 503 504 @proxy_error;
     }