Expected behavior and actual behavior.

Using GET and HEAD as HTTP commands should return the same headers.

Steps to reproduce the problem.

Mapserver is behind apache, with the only interesting configuration is :

   RewriteEngine on
    RewriteRule ^/maps/([^/]*)$ /wxs/mapserv?map=/maps/$1.map [PT,QSA]

The version installed is 7.6.2

When I call my server with curl, for example with this call, I receive a png, with the according header Content-Type: image/png

curl https://[MYDOMAIN]/maps/osm-default\?VERSION\=1.1.1\&REQUEST\=GetMap\&LAYERS\=default\&WIDTH\=256\&HEIGHT\=256\&FORMAT\=image/png\&SRS\=EPSG:3857\&BBOX\=670199.864,6227477.568,675091.833,6232369.538

When I call the exact same url with curl -I to receive only the headers (for monitoring purpose), the headers are different, especially the Content-Type : Content-Type: text/html

The difference is that curl use the command HEAD instead of GET, but the headers should be equivalent.

Operating system

Debian bullseye 64 bit

MapServer version and installation method

7.6.2 version, I am not sure of the way it was installed