Images do not save with page when Reader Mode is active.

[Ascrod]

When saving a page while in Reader View, images do not save with the rest of the page content. This only manifests with the Pale Moon extension, and not with the integrated Reader View in Basilisk, so I think we can rule out issues with the platform code here.

[Ascrod]

I did a comparison between RV in Pale Moon and Basilisk with this page. The first image's src attribute the HTML file saved from Basilisk is:
Internet%20-%20Wikipedia_files/220px-Internet_users_per_100_and_GDP_per_capita.jpg
But the same file saved from Pale Moon RV is:
urn:not-loaded:https://upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Internet_users_per_100_and_GDP_per_capita.jpg/220px-Internet_users_per_100_and_GDP_per_capita.jpg
The file (thumbnail image) in the second URL does exist, so I'm not sure where urn:not-loaded comes from or why it differs; I can only think that it's somehow related to how the Reader View add-on is not integrated as closely with the browser, and that maybe the URL isn't being passed in correctly somewhere, but beyond that I'm afraid I'm at a bit of a loss.