I encountered this proposed feature via a fellow nerd’s article/repo published on GitHub. I expressed my opinion about using Chrome-only features in the wild in the form of a pull request.
I wasn’t sure what the point of this was until I read through some of the motivating use cases. It seems really useful! I hope it becomes a standard, and is adopted by Firefox, Safari, etc.
Mozilla is still working on an official position https://github.com/mozilla/standards-positions/issues/194
I think there might be some concerns with cross origin data leakage if the scroll event is observable as focus/blur event from an embedding website, but I better let the experts comment on the issue :-)
Agreed. I have imagined weaker versions of this feature before–simply using some text as an anchor, without the highlighting. Clearly the highlighting is very useful! Or, so I imagine it will be.