Well, browser vendors keep adding features, and in 2014, it was predicted by lcamtuf that the mix-blend-mode property would be useful to access browser history:

Well, browser vendors keep adding features, and in 2014, it was predicted by lcamtuf that the mix-blend-mode property would be useful to access browser history: https://lcamtuf.blogspot.fr/2016/08/css-mix-blend-mode-is-bad-for-keeping.html https://lcamtuf.blogspot.fr/2016/08/css-mix-blend-mode-is-ba... Two years later, it was implemented, and the demo seems to be working here in Firefox 56: http://lcamtuf.coredump.cx/whack/ http://lcamtuf.coredump.cx/whack/