While the feature is problematic, commenters pointed out that some previews are helpful – e.g. on Wikipedia, where a preview will appear when people hover over a wiki-linked page.

Other commenters pondered about some minimal way to replicate this elsewhere, and it seemed to be worth investigation. Read on as I propose an enhancement to the Fediverse (and maybe even web standards) to make Link Previews great: the Link Preview Manifest.

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[–] yoasif@lemmy.world 2 points 3 weeks ago

One thing that I neglected to mention is that since the SRI hashes are calculated, previews can be cached by peers other than the originating host - since they are verifiable, anyone can pass them along and the client can verify the payload.

Not something I really fleshed out in discovery, but if there is interest, that might make it more production ready.