I added an Icon for a Component Template, which didn't show in Experience Manager right away.

The Event Component Template Icon didn't show

After deleting cached images in %TRIDION_HOME%\web\WebUI\WebRoot\ThumbnailCache, I was able to see the icon. But I think updating the modification number would work as well (for script, styles, and images).

  • For these icons, is clearing the cache or incrementing the modification the "right" approach?
  • Is there something I can do to prevent ThumbnailCache from getting out of date?

1 Answer 1


The only thing I can think at this moment is to install a Browser add-on that eliminates the cache for every request. It will of course affect XPM performance. I really don't see a huge impact on refreshing the cache when you change the icon since it will be done just once

  • 1
    Okay, yeah that's a bit much just for the icons. :-) I think the typical update process would be to set all the desired CT icons first, clear the thumbnail cache, and then test (rather than small changes). Sep 29, 2014 at 22:38
  • Use Chrome Incognito?
    – Robert Jin
    Sep 30, 2014 at 23:35

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