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Text from deleted comment can be retrieved by copying it
(i.imgur.com)
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this post was submitted on 23 Dec 2023
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Boost For Lemmy
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It was probably cached beforehand.
I remember on the old forum with the alien I could hit refresh constantly to see what deleted comments had said if it was cached on time.
I think the app is caching things without you having to look at them so they can instantly load. Not 100% though. It’s what I noticed happening years ago.
Servers cache stuff too. Instead of orchestrating each script and each request to db, they prerender pages to deliver. It's getting trickier with dynamic sites like reddit, but it still saves a lot in processing time, money.
The hardest thing in programming is naming things, off by one errors, and cache invalidation.
The joke is supposed to be "the two hardest problems in programming are naming things, cache invalidation, and off-by-one-errors" - the joke being that you say two problems and are off by one.
Lemmy API returns comment content even if it was removed, but with a removed flag. Boost should not show the content in the copy dialog.