I get a not so verbose error message here: Uncaught Error: NotFoundError: DOM Exception 8

You can see it (On Chromium and Firefox at least where I tested it) at the page:


Select some content and lick the toolbar button with the missing caption (I shall fix the caption later on), the one in color, left of the button with the caption "Lien".

If you can lead me even one step that'd be very helpful.

Kind Regards,