Thread-topic: Anyone know if RSS <cloud> is used in the real world?
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On 1/19/06 3:03 PM, "Jens Alfke" <email@hidden> wrote:
> I've been thinking about ways to optimize the delivery of RSS/Atom
> content, by avoiding polling whenever possible. There's a very
> obscure bit of the RSS 2.0 spec dealing with a <cloud> element that
> enables a push-based notification mechanism. There is a brief
> description here:
> http://blogs.law.harvard.edu/tech/soapMeetsRss
>
> and Mark Pilgrim has some commentary on the <cloud> tag itself:
> http://feedparser.org/docs/reference-feed-cloud.html
>
> but I was unable to find a full spec, nor any evidence that this
> element/protocol is being used.
When I was at UserLand we did actually implement and use this -- and it was
pretty cool, because it worked, you got notified of updated feeds very
quickly.
The biggest problem with it, as I recall, was that it relied on their being
an HTTP server on the user's machine that could be reached from the outside
world (from the cloud server). Which is a pretty big problem.
-Brent
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