Hmm, in chrome and edge the tab just crashes for me on the landing page when my cursor goes over the editor. `RESULT_CODE_KILLED_BAD_MESSAGE` is the only error I can find, I know that's probably not very useful though.
Thanks, I'll try to get my hands on a Windows machine to repro. Unfortunately it sounds like the content process crashes, which could be for a multitude of reasons, from out-of-memory to an engine bug triggered by something that happens on the page.
