WmtsLayer & refresh problem in Firefox/Chrome

[RobertBätschmann]

Hello,

I wrote a very simple application, with a Map, a WmtsLayer, and MapProgressBar, using the version 3.1 of the silverlight API.

When I zoom in / zoom out on the map, the Wmts Layer is not refreshed in Firefox 20.0.1 and Chrome 26.0.1410.
But everything works fine with Internet Explorer 9.0.8112

It seems that the new zoomlevel is drawn, but the old zoomlevel is not cleared (see picture)

I tried to register ExtentChanged method on the map, in order to force the layer.Refresh(), and it somehow solved the problem, althouth there is a little "blink effect" of the layer, which is not very pretty.

[ATTACH=CONFIG]24287[/ATTACH]

Furthermore, the MapProgressBar component never reaches 100%, et stays stucked at XX %, and never disapear.
This problem is only with Firefox and Chrome too. Everything works well with IE.
I didn't find anything to fix it.

[ATTACH=CONFIG]24288[/ATTACH]
[ATTACH=CONFIG]24289[/ATTACH]

Here is the code, but I think you won't be able to access the WMTS without authentication.

<Grid x:Name="LayoutRoot" Background="White">
        <esri:Map x:Name="EsriMap">
  <esri:WmtsLayer ID="LandesgrenzenLayer" ServiceMode="RESTful"
                            Url="http://wmts-fedro.geo.admin.ch"
                            Layer="ch.swisstopo.swissboundaries3d-land-flaeche.fill"
                            ProxyUrl="http://localhost/LvProxy/Proxy.svc/"
                            />
 </esri:Map>

        <esri:MapProgressBar x:Name="MyProgressBar" Map="{Binding ElementName=EsriMap}" HorizontalAlignment="Center" VerticalAlignment="Bottom" Width="300" Height="30" />        
    </Grid>

Thanks for any advice !
Guilllaume.