When Nexus makes upstream Docker requests (e.g. https://your-org-your-repo.bintray.io/v2/your-package/manifests/latest), Bintray responds with a `406/Not Acceptable`.
After much experimentation, we determined this can be resolved in any of the following ways:
- Send no `Accept` headers. Currently, Nexus sends:
- In addition to these, send:
- Send preemptive auth.
It looks as though the Docker CLI doesn't send any `Accept` headers, so this could be the easiest option.
The docker CLI does work against bintray. NXRM should act like docker CLI does as close as possible.