>>9660
Ponibooru loaded images from links like this:
http://img.ponibooru.org/_images/0417062c7e96598b93c884cce4c2fb5f/34766%20-%20artist%3Abibliodragon%20rarity%20sewing%20sleeping%20Sweetie_Belle.png

Therefore, no hope on that without rewriting webpages or getting JS to load it from elsewhere.