Right now, occasionally the web browser saves some old textboxes entries.
I don't have a screenshot right now, but instead of seeing the /c tooltips, the browser entires overlays them.
It doesn't happen so often, but when it happens, It's a bit hard to handle.
As I mentioned in another post, Shift+Del plus arrow keys handle this problem, but I'd suggest you to override the default browser default autofill history, if you know what I mean.
I can provide an example later if it happens again, but it happens occasionally. I'll see if it happens again and then I'll come back later to report in.