mapserver as wms client - gracefully handling errors

[Matthew Perry]

On 7/24/06, Bart van den Eijnden (OSGIS) <bartvde at xs4all.nl> wrote:
>
>>> "wms_exceptions_format "application/vnd.ogc.se_blank"
>
> please bear in mind that this is an optional exception format for the WMS
> spec, so it could be that the WMS server you are accessing does not
> support it (check the WMS GetCapabilities response).
>

This seems to be the case. Though their capabilities docs says
otherwise, the terrasever WMS does not support this exception format
properly (only text/html and xml).

Still, I've come full circle back to the original issue. If all else
fails and a cascaded WMS service returns something unexpected, how do
I get mapserver to ignore this and continue rendering the other
layers?

Until I figure that out, I'll just set the end WMS client to request
blank exceptions so users get a blank image rather than an
error-ridden image. Thanks for pointing that out.

-- 
Matt Perry
perrygeo at gmail.com
http://www.perrygeo.net