Hacker News Reader

It requires javascript from a third party domain. Hah.

Works fine with NoScript and everything blacklisted.

Firefox 66.0.4 for Fedora

It'll work without Javascript if you already have the image cached.

Sorry for the late reply, but I just tried a clear cache+refresh and it still loads the image fine.

Privacy Badger was breaking it for me

What ? It does for me on Linux with Firefox 68.

PNG are handled by Firefox since Firefox 1 or 2, over ten years ago.

It's not the image, it's the 3rd-party script they use.