I made a plugin that uses the method you linked to. Me and css are not friends, and this method feels very hacky, so there are some bugs to work out. But the idea is there and it is usable at least.
To test it out go to the examples tab, check the enable cursor display checkbox and start typing in the text box. https://ooktech-tw.gitlab.io/plugins/caretposition/ -- You received this message because you are subscribed to the Google Groups "TiddlyWikiDev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywikidev/f6f8fc30-2915-4027-b8ce-3a8317e77a1e%40googlegroups.com.
