Yup, it's basically a spider. The Anticontainer plug-in enhances it to fetch images that are a few steps away from the original page. Looks like it just needs

Yup, it's basically a spider. The Anticontainer plug-in enhances it to fetch images that are a few steps away from the original page. Looks like it just needs unrestricted XHR, which greasemonkey and every other chrome extension already require. Maybe off-screen rendering, which could look like this: https://www.chromium.org/developers/design-documents/extensions/proposed-changes/apis-under-development/offscreen-tabs https://www.chromium.org/developers/design-documents/extensi...