Cannot find image URL in webpage body

This is due to GoComics switching from this type
https://assets.amuniversal.com/85880c9099bc01365606005056a9545d
to this type
https://featureassets.amuniversal.com/assets/85880c9099bc01365606005056a9545d

also: [cache is missing some dates](https://github.com/dxrcy/everygarf-cache/issues/1)