Version 0.993

More cache features:

Netdoc's RSS feeds normally contain 20 newest blog posts. A common practice on the web nowadays is to return the whole feed if any of the posts have been changed (since the last time an rss aggregator, for example Bloglines, requested the feed) or give HTTP 304 Not Modified if the feed is up to date (to that RSS aggregator).

Netdoc tries to go one step further: if an RSS feed reader requests the feed with the If-None-Match or If-Modified-Since header, Netdoc will return only the blog posts that have been modified after that timestamp.

This is to say that ETags are now timestamps and only the changed posts can be returned to the RSS aggregator, which should save bandwidth for large blogging hosts.

This idea came to my mind when reading this post.