Timbalu wrote:if you start to disable support for these old broken standards like IE < 8/9. We could always have a switch to fall back to bulletproof or anything supporting old Browsers and old HTML standards
In my humble opinion, that's a contradiction in terms.
If we switch to HTML5 in full, we should do it without a fallback, if only to save to bloat and hassle to maintain the fallback.
We could actually switch to HTML5
now without any user actually noticing. Just change the doctype, adapt the charset/css link/script statements, lose obsolete elements like frames, iframes etc., and keep using everything else. There, HTML5.
Remember that anything
not supported by older browsers like new structural elements, native audio/video, canvas etc. doesn't have to be used. Also, there are quite a lot of polyfills out there, although some of them sure as hell aren't pretty.
YL