Helm repository https://mailgun.github.io/gubernator shows no entries

[MisterTimn]

I was happy to see that through PR https://github.com/mailgun/gubernator/pull/139 and the work of @pzduniak the chart in this repository is published and made accessible for easy usage with Helm CLI.

However, when I added the repo myself and wanted to search it and install gubernator, I noticed that though adding the repository works fine, searching the repo gives no results

$ helm repo add gubernator https://mailgun.github.io/gubernator                
"gubernator" has been added to your repositories
$ helm search repo gubernator
No results found
$ helm install gubernator gubernator/gubernator
Error: INSTALLATION FAILED: chart "gubernator" matching  not found in gubernator index. (try 'helm repo update'): no chart version found for gubernator-

I've checked https://mailgun.github.io/gubernator/index.yaml and can't find any reason this wouldn't work, so it might be an issue with Helm or my Helm install. But other repositories work fine, as an example our own repo https://idlab-discover.github.io/obelisk (link to index file) works fine as do other repositories.

I also checked the URLs in the index.yaml and they indeed link to downloads of the specified .tgz files so that's not the issue either.

I'll look into it further when I have some spare time but wanted to park the issue here, does someone know what might cause this and how to fix it?