The Tailscale blog’s RSS feed is currently responding to every request from scratch, without caching. While it is reporting a Last-Modified
header, it isn’t honoring it: it sends the full 200 kilobyte feed every single time my newsreader checks it.
This is a lot of unnecessary traffic, so I’d like to see this fixed as soon as it can be. I recommend using ETags instead of Last-Modified
, as well: they’re easier to work with, and less prone to bugs like this.