[mapserver-users] Mapserver WMS server, IIS and wrong content-type

[Oliver Christen]

hi list

One of our client reported some strange problem they have with their 
Mapserver (5.2.1) WMS server running on IIS 6.0,

when doing a GetMap resquest, the "Content-Type" in the response is 
"text/html" instead of the mimetype specified in the OUTPUTFORMAT in the 
mapfile for the image format requested, as a result the image is 
displayed as text in browsers and some other clients.

for example:

http://geo.fr.ch/wms/orthophoto_2005_fribourg.php?VERSION=1.1.1&REQUEST=GetMap&SERVICE=WMS&LAYERS=Communes&SRS=EPSG:4326&BBOX=6.71555,46.3924,7.43958,47.0604&WIDTH=500&HEIGHT=500&FORMAT=image/png

the header say:

HTTP/1.1 200 OK
Date: Mon, 04 Jul 2011 11:40:31 GMT
Server: Microsoft-IIS/6.0
Content-Type: text/html
Content-Length: 123821


the OUTPUTFORMAT in the mapfile are:

OUTPUTFORMAT
NAME png24
DRIVER "AGG/PNG"
MIMETYPE "image/png"
IMAGEMODE RGBA
EXTENSION "png"
FORMATOPTION "INTERLACE=ON"
TRANSPARENT ON
END

OUTPUTFORMAT
NAME jpeg
DRIVER "GD/JPEG"
MIMETYPE "image/jpeg"
IMAGEMODE RGB
EXTENSION "jpg"
FORMATOPTION "INTERLACE=ON"
FORMATOPTION "QUALITY=90"
END



Anyone has a idea what could be wrong?
Is it some missing Mapserver configuration ?
Or maybe in the IIS configuration?

thanks for any idea about this.

best regards
Oliver Christen