dev.lemmy.ml is unreachable most of the time. Which is fair enough since it’s a test system, but in principle it should be possible to access articles via archive.org during down moments. So I went to this archived page:
https://web.archive.org/web/20200319191703/dev.lemmy.ml/post/31321
and it’s blank. Some will call this a feature; I call it a bug.
My guess is: it is a bug since it is implemented archiving via archive.is (which I would not recommend against archive.org).