Banner missing from "About this pod" page

Steps to reproduce

If a banner is set, visit the About this pod page. If no banner was set before, try to upload a banner via the pod settings

What happens?

Banner is not displayed, and when trying to upload a new banner, nothing happens when clicking save. Current image section in pod settings also fails to display an image.

What is expected?

Banner images should be loaded and displayed.

Context

Funkwhale version(s) affected: 1.3.0 Tested with and without custom CSS override.