Just came across this URL which opens in 'other' browsers but not in RISC OS NetSurf here. Okay, I'll admit to using an old version (3.1 #1298) but no doubt I'll be told if later versions do cope. ;-)
http://dahlström.net/svg/favicon/favicon.html (which StronEd doesn't but Pluto translates to http://dahlstr%F6m.net/svg/favicon/favicon.html) tried this http://dahlström.net/svg/favicon/favicon.html and this http://dahlström.net/svg/favicon/favicon.html Without the umlaut it is a different web site. Daft, eh? http://dahlstrom.net/svg/favicon/favicon.html