That did it. Thank you for the quick reply. I tried that earlier, but obviously had something else wrong at the time. Then, when actually *reading* the 0.2 spec, saw it wanted a "response body," and ass*u*me'd that meant an HTML body.
Next question: I'm still seeing this same error message when I try to subscribe an XMPP client to the feed: http://pubsubhubbub-xmpp.appspot.com/subscribe/[email protected] ...this URI was generated by the http://pubsubhubbub-xmpp.appspot.com/ form. The xmpp user is a friend of <[email protected]> and, at the time I try to subscribe, the user is online. Not sure how to start debugging this one. This is the part I'm really interested in. I've been wanting to have a Jabber-enabled server since first playing around with Jabber libs maybe 8 or 9 years ago, and I'm hoping that PuSH w/XMPP can make this simple. This is great stuff. Thanks.
