You misunderstand. It's not what the -user- has changed. It's what the -site- has changed.
If I design a malicious site with the goal of spying out which pages you have visited, there's
nothing stopping ME from specifying that visited-links should be in 20pt and nonvisited in
be invisible to you, say by having the background-color or being in a div that has
I'm with the other reply: Render -ALL- links as if they're nonvisited, then apply some local
(not influenced by site-CSS) decoration-change that is invisible in the DOM.
Yes, this means site lose the possibility of specifying how visited links should look. An
advantage anyway since most use that only to set them equal to nonvisited in the first place,
because it offends "designers" to have lists of links that have two different looks.