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    <font size="-1">List,<br>
      <br>
      Unfortunately I still cannot get transparency to work.<br>
      <br>
      I've created a WMS-service to debug.<br>
      I've created a minimal mapproxy config with only the things to get
      it going in it<br>
      I've created a viewer to see the result.<br>
      <br>
      If you look at the demo-viewer:<br>
<a class="moz-txt-link-freetext" href="http://178.63.74.185/hosting/demo/show_source.html?layernames=Bedrijventerrein&amp;test=true&amp;opacity=1&amp;url=http://test.tiles.md-kwadraat.nl/mp/service">http://178.63.74.185/hosting/demo/show_source.html?layernames=Bedrijventerrein&amp;test=true&amp;opacity=1&amp;url=http://test.tiles.md-kwadraat.nl/mp/service</a><br>
      <br>
      you see that the overlay is fully opaque. My configuration is
      attached below.<br>
      <br>
      Please help me with tracking down this problem.<br>
      Is there anything wrong with my config?<br>
      How can I track this problem. I really don't know where to start.<br>
      <br>
      Any help greatly appreciated. <br>
      <br>
      Marco<br>
      <br>
      <br>
      caches:<br>
      &nbsp; _Bedrijventerrein:<br>
      &nbsp;&nbsp;&nbsp; grids: [applas_grid]<br>
      &nbsp;&nbsp;&nbsp; link_single_color_images: true<br>
      &nbsp;&nbsp;&nbsp; sources: [wms_Bedrijventerrein]<br>
      globals:<br>
      &nbsp; cache:<br>
      &nbsp;&nbsp;&nbsp; base_dir: /var/applas_user_data/prod/cache/<br>
      &nbsp;&nbsp;&nbsp; lock_dir: /var/applas_user_data/prod/cache/locks/<br>
      &nbsp;&nbsp;&nbsp; meta_buffer: 255<br>
      &nbsp;&nbsp;&nbsp; meta_size: [3, 3]<br>
      &nbsp;&nbsp;&nbsp; minimize_meta_requests: true<br>
      grids:<br>
      &nbsp; applas_grid:<br>
      &nbsp;&nbsp;&nbsp; bbox: [-285401.91999999998, 22598.080000000002,
      595401.92000000004, 903401.92000000004]<br>
      &nbsp;&nbsp;&nbsp; res: [3440.6399999999999, 1720.3199999999999,
      860.15999999999997, 430.07999999999998,<br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 215.03999999999999, 107.52, 53.759999999999998,
      26.879999999999999, 13.44, 6.7199999999999998,<br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3.3599999999999999, 1.6799999999999999, 0.83999999999999997,
      0.41999999999999998,<br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.20999999999999999]<br>
      &nbsp;&nbsp;&nbsp; srs: EPSG:28992<br>
      &nbsp;&nbsp;&nbsp; tile_size: [256, 256]<br>
      layers:<br>
      - name: Bedrijventerrein<br>
      &nbsp; sources: [_Bedrijventerrein]<br>
      &nbsp; title: Bedrijventerrein<br>
      services:<br>
      &nbsp; tms: null<br>
      &nbsp; wms:<br>
      &nbsp;&nbsp;&nbsp; image_formats: ['image/png','png']<br>
      &nbsp;&nbsp;&nbsp; md:<br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; abstract: test for transparency.<br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; access_constraints: none<br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; contact: {address: none, city: none, country: The
      Netherlands, email: none,<br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; organization: none, person: none, phone: none,<br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; position: none, postcode: none}<br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fees: None<br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online_resource: <a class="moz-txt-link-freetext" href="http://tiles.md-kwadraat.nl/">http://tiles.md-kwadraat.nl/</a><br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; title: test for transparency.<br>
      &nbsp;&nbsp;&nbsp; srs: ['EPSG:28992']<br>
      sources:<br>
      &nbsp; wms_Bedrijventerrein:<br>
      &nbsp;&nbsp;&nbsp; image: {opacity: 0.4}<br>
      &nbsp;&nbsp;&nbsp; req: { layers: Bedrijventerrein, transparent: true, url:
'<a class="moz-txt-link-freetext" href="http://178.63.74.185/fcgi-bin/mapserv?map=/var/www/html/shared/services/wmsproxy/wmsproxy.map">http://178.63.74.185/fcgi-bin/mapserv?map=/var/www/html/shared/services/wmsproxy/wmsproxy.map</a>'}<br>
      &nbsp;&nbsp;&nbsp; supported_srs: ['EPSG:28992']<br>
      &nbsp;&nbsp;&nbsp; type: wms<br>
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