I had subscribed to quite a few RSS feeds yesterday where the hub is - http://pubsubhubbub.appspot.com/ . Even though subscription is successful for all feeds, my callback url is not getting the pings. I have checked at https://pubsubhubbub.appspot.com/subscription-details?hub.callback=..., everything looks good. As you can guess, callback url is also valid. Just to give an example, i am having issues with following feeds:
http://feeds.feedburner.com/TechCrunch http://feeds.feedburner.com/engadget While above both are feedburner feeds, few other feedburner feeds were working fine. Any idea what might be the issue here? Vivek Puri
