Pretty much no element is safe per the specification ;). I suggest doing some tinkering with Superfeedr to see what kind of Atom output they are generating. I think it's a fairly basic subset but I'm a content jockey so I haven't been paying a lot of attention outside the bare essentials just yet.
Paddy Pádraic Brady http://blog.astrumfutura.com http://www.survivethedeepend.com OpenID Europe Foundation Irish Representative ________________________________ From: Tim Bray <[email protected]> To: Pubsubhubbub <[email protected]> Sent: Sun, October 18, 2009 5:49:11 AM Subject: [pubsubhubbub] 7.3 Content Distribution I think there needs to be quite a bit more clarity here. It's clear that the hub is required to preserve the atom:id. How about the other elements? I would be *very* nervous about a hub that screwed around with my atom:updated or other header fields. The current text sounds like it's suggesting that it might be OK for hubs to do this. If so, that's going to surprise some users of this spec, so it should be made very clear. -T
