add location block to HTTP->HTTPS redirect

thanks to feedback per E-Mail

Author: Findus23

sites-available/matomo.conf

@@ -3,7 +3,9 @@ server {
     listen 80;
     server_name matomo.example.com;
     # Redirect all HTTP requests to HTTPS with a 301 Moved Permanently response.
-    return 301 https://$host$request_uri;
+    location / {
+        return 301 https://$host$request_uri;
+    }
 }
 server {
     listen [::]:443 ssl http2; # remove this if you don't want Matomo to be reachable from IPv6