It seems like quite a lot of JavaScript functionality is broken using internet-explorer-10 on windows-8-preview. For instance, Facebook flakes out on me, not letting me add comments, and StackOverflow/SuperUser doesn't let me vote. If you are reading this question, however, then it seems I am able to post a question.
Is there a way to report these kinds of errors, or does anyone know a way around them?
For the record, these JavaScript errors are still present in Windows 8 RTM. It's very frustrating.