[FEATURE] Add `cache.ruby-lang.org` to allowlist

Status Open
Maintainer reply ✓ Yes — bcherny
Activity 3 comments · opened Jun 29, 2026
💡 Likely answer: A maintainer (bcherny, collaborator) responded on this thread — see the highlighted reply below.

Preflight Checklist

  • [x] I have searched existing requests and this feature hasn't been requested yet
  • [x] This is a single feature request (not multiple features)

Problem Statement

Preflight Checklist

  • [x] I have searched existing requests and this feature hasn't been requested yet
  • [x] This is a single feature request (not multiple features)

Problem Statement & Proposed Solution

Reopening #63049 after #51664 after #33622. Please add cache.ruby-lang.org or rather *.ruby-lang.org to default allowed domains (ruby-lang.org is already there in the _Ruby package managers_ section).

Priority

Medium - Would be very helpful

View original on GitHub ↗

3 Comments

evdevdev · 3 months ago

Just ran into this as well.

The specific issue is that Trusted allowlist includes ruby-lang.org but not the cache. subdomain; base image ships rbenv with 3.1/3.2/3.3, so installing any project-pinned Ruby fails with a CONNECT 403; forces a build-from-git-source workaround"

bcherny collaborator · 2 months ago

Today ruby-lang.org and www.ruby-lang.org are in the default list but cache.ruby-lang.org isn't. You can allow it now by setting the environment's network access to Custom and adding cache.ruby-lang.org under Allowed domains (https://code.claude.com/docs/en/cloud-environments). Leaving this open as a request to add it to the default list.

🤖 Generated with Claude Code

krystof-k · 1 month ago

Just preventing the bot closing the issue, cache.ruby-lang.org still missing from the list.