My Corporation has blocked *.github.io (they call it "github-pages"). Is there an alternative location to do a helm repo add?

**Is your feature request related to a problem?**
Yes, my corporation has blocked *.github.io (they call it "github-pages"). Is there an alternative location to do a helm repo add?

**Is your feature request related to a specific Helm chart, if yes mention name of the chart?**
Yes, any helm chart sitting behind the github.io domain (e.g. aws.github.io, kubernetes-sigs.github.io)

**Describe the solution you'd like**
A mirror that's not characterized or classified a security risk by cyber.

**Describe alternatives you've considered**
Trying to negotiate my corporate Cyber Security team to open access, but they wont.

The issue names no files, tests, or publishing entry point. Start by tracing how the Helm charts are currently served from the mentioned github.io locations, then clarify a feasible alternative hosting path with maintainers; done means charts can be added from a non-github.io location.

Written by the indexing model from the issue text.