[mapserver-users] MapServer requires unnecessary SERVICE=WMS parameter in GetMap request

[Paul Ramsey]

Right you are, another hidden gem of the specification... I've
assigned a ticket to this. It seems pretty important to my mind, so if
others are busy, I'll fix it.

http://trac.osgeo.org/mapserver/ticket/2839

P.

On Mon, Dec 22, 2008 at 2:25 PM, John Maurer <maurerj at nsidc.org> wrote:
> Dear MapServer users,
> I recently discovered that MapServer (we are using 5.2.0) requires a SERVICE
> parameter (i.e. SERVICE=WMS) in a GetMap OGC request even though this
> parameter is not mentioned or required in the WMS 1.1.1 OGC specification
> for GetMap requests:
>
> http://www.opengeospatial.org/standards/wms
>
> It is strange that this is so since GetFeature and GetCoverage both require
> the SERVICE paramter, but for whatever reason the GetMap spec doesn't. Kind
> of an inconsistency in the OGC services, but MapServer needs to abide by it.
>
> This cropped up when a user contacted me that our WMS services were not
> working in ArcGIS 9.2 after we upgraded MapServer from 4.9 to 5.2. After
> discussion with ESRI, they pointed out that MapServer was throwing an error
> about a missing SERVICE parameter because they do not include this parameter
> in their GetMap requests. However, the SERVICE parameter should not be
> required according to the spec.
>
> I modified our CGI to fill this parameter in by default if not provided as a
> workaround, but a future release of MapServer should probably remove the
> requirement for this parameter in GetMap requests. Or am I missing something
> (always a possibility!)? Thanks!
> Cheers,
>
> --
> John Maurer
> Web/Database Applications Engineer
> National Snow and Ice Data Center (NSIDC)
> University of Colorado at Boulder
> http://cires.colorado.edu/~maurerj
> +1-303-586-1677
> ------------------------------------
> "Without geography, you're nowhere!"
>
>
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