Question. From my experience, GitHub uses the `github-amo` bot to fetch the data when the page is rendered. How did you prevent it from cacheing on GitHub's servers?
My browser did however cache the latest image (which is why I thought the system was not working for a second), and I'm not sure how to get around that.
[0] https://docs.github.com/en/github/authenticating-to-github/a...
EDIT: I see. The no-cache causes the Camo service to refetch the image every time it is requested, but it still applies a 4 hour cache time to the response to the browser so it is anyway cached on the client side.