WebKitControl Hints
The _uc_WebKitControl only implements aminimal interface that does not allow to debug JavaScript. Syntax Errors are written on the std::cerr file and not everything supported by modern browsers is supported by QtWebKit (e.g. XSLProcessor is missing).
When building the Control JavaScript using a suited development environment and debugger, check for the wkc object and make it 'work' with dummy data has proven to be a effective and quick way to get results.
There are some examples in the wkc/controls folder that use this Control.