Handling Browser-specific Support Of Html Input Type="date"

I am aware that the HTML 5 input tag, when used with type='date', needs to be fed an RFC 3339 full date as described here. Lots of questions here, such as this one, mention this. H

Solution 1:

See this. It recommends 2 polyfills. This one and this one. Both look pretty good. Doing browser detection then special formatting is messy, so I don't recommend it.