[MapProxy] Unsupported srs

[Petróczki Imre]

Hi,

I have the following configuration (1.7.1):

layers:
  - name: test
    title: test
    sources: [test_source]

sources:
  test_source:
    type: wms
    supported_srs: ['EPSG:21781']
    req:
      url: http://wms.geo.admin.ch/
      layers: ch.swisstopo.pixelkarte-farbe-pk1000.noscale

When i open the mapproxy demo page and try to test my layer i get
"unsupported srs: EPSG: 21781" error. I checked the wms capabilities,
but it was listing the
requested srs correctly. The layer works good on the demo page with
every other srs (900913, 4326, ...), but not with 21781.

Thanks for help!
Imre Petróczki