General usage
Move the identifier from the root of the Unavatar URL to the public service's /avatar/ path.
Original
https://unavatar.io/:anything↓Public servicehttps://unavatar.webp.se/avatar/:anythingExample
For the identifier github/nova, construct the request as follows:
https://unavatar.webp.se/avatar/github/nova
Query parameters supported by the upstream provider can be appended after the identifier, but the public service's cache policy still applies to the resulting image.