Thanks. I don't have FF4 on my Ubuntu laptop yet, but my testing with telnet says it's working. If you have the extension installed please check for me: http://ourdoings.com/2008-04-01 should redirect you to a picture of llamas ignoring April Fools Day if you've turned on DNF, otherwise it shows a fake "OpenID Support to be Removed" blog post from a prior April Fools day.
EDIT: One reply saying if it worked would be most appreciated.
In all honesty, I am struggling to figure out if this is an April's Fools Joke in and of itself, or if this is legit. The comments definitely don't help much.
It's both. The "DNF" header can't be a serious proposal since it doesn't follow the convention of other HTTP headers. They're leaving "Do-Not-Fool" unused in case it later becomes a serious proposal. But it does actually send the header, so in that sense it's legit.
The rationale for "DNT" is to minimize the bandwidth/latency impact of adding a new header to every single HTTP request (for users who enable the "do not track" option).
