this post was submitted on 09 Oct 2025
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Ah. PieFed is just throwing the same html at Mastodon that we use in the PF web app and then Mastodon is stripping out things it can't handle. Perhaps we should do some pre-chewing of the html so that it degrades more gracefully, e.g. convert inline images to links.
In general that's a good idea because you should never trust content coming from somewhere else (even in an S2S context)
For reference, NodeBB literally sanitizes the bejeezus out of what it gets from anywhere. All classes are removed, all attributes are removed. I want it as close to semantic HTML as possible, and classes/attributes mean absolutely nothing because:
For example, Mastodon messes with any URL it federates out. It chops the anchor text in half, hides the rest behind
invisible
or something, and adds an ellipsis.invisible
does something different in NodeBB, so there is a CSS conflict here. I strip everything and just show the URL as it was intended.So if I understand correctly, Mastodon is happy to receive HTML markup like THIS, but... is such code something we could use in common PF posts, or..?