I'm seeing an issue from a user where the <description> in an item has HTML image tags that are sourced local to the content (see https://librearts.org/index.xml for our example).

Some of the content has HTML image tags that have a src that is relative to the content, ie:

...<img src="siril-0-99-7.webp" alt="Siril 0.99.7">...

This works fine as expected in an HTML page (https://librearts.org/2021/01/foss-in-2021-preview/), but fails to render the images in FreshRSS. In a couple of other RSS readers I've tested (Feedly and Thunderbird namely) they do handle the relative linking, but not here.

Is this something that could be handled on the reader side (build the absolute URL from the item <link> if it's a relative asset?