I have made a simple WidgetSet application with JWt 3.3.0 and Jetty 8.1.5.
It appears to work in Chrome, Safari, Opera and Firefox, but produces an error in Internet Explorer 9:
Wt internal error: [object Error], code: undefined, description: Could not complete the operation due to error 80020101.
The WidgetSet application apparently cannot find some of its resources:
[ResourceHandler] looking for /map.js/wt-resources/themes/default/wt.css
[ResourceHandler] looking for /map.js/wt-resources/themes/default/wt_ie.css
[ResourceHandler] looking for /map.js/wt-resources/webkit-transitions.css
"map.js" is the name of the script that is included from the main html page and that contains the WidgetSet application itself. The failure to find these resources also causes some display problems (e.g. missing images).