Source Maps are deployed but not accessible via CDN.

During the investigation of gitlab-org/gitlab#212240 (closed) we have realized that source maps are 404ing on gitlab.com. In order to save space we are gzipping all of our source maps and delete the non gzipped versions.

Our JavaScript references e.g. https://assets.gitlab-static.net/assets/webpack/27.b8e18468.chunk.js.map which 404s. The gzipped version is accessible: https://assets.gitlab-static.net/assets/webpack/27.b8e18468.chunk.js.map.gz.

In nginx there is the possibility to send the gzipped version if the non-gzipped is requested. Is there the possibility to do something similar in our CDN config?

So for example if someone requests: https://assets.gitlab-static.net/assets/foo.js.map we actually deliver https://assets.gitlab-static.net/assets/foo.js.map.gz?