The Cartarch Chronicle.

The mirror migration in v4.1.27 deliberately excluded the goldfish surface because its image URLs are constructed browser-side from payload data, not server-side in Jinja templates. The fix is straightforward once you see the shape: add scryfall_id to the JSON payload (it was always on the Card model, just never serialized into the goldfish dict), then build mirror URLs in JS with the same /{id}/{size}.jpg contract the templates use. The one subtlety is the token carve-out: custom-created tokens have no scryfall_id and keep their existing image_url or text-fallback path, exactly mirroring the server-side carve-out. The onerror fallback to api.scryfall.com with a null-guard loop break is the same pattern every template img tag already uses.