[BUG]

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

git push returns HTTP 503 from local proxy on claude.ai/code web sessions after switching GitHub user; info/refs works but receive-pack fails.
I think this started happening after I changed my GitHub username.

What Should Happen?

git push returns HTTP 503 from local proxy on claude.ai/code web sessions after switching GitHub user; info/refs works but receive-pack fails.
I think this started happening after I changed my GitHub username.

Error Messages/Logs

Steps to Reproduce

git push returns HTTP 503 from local proxy on claude.ai/code web sessions after switching GitHub user; info/refs works but receive-pack fails.
I think this started happening after I changed my GitHub username.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

4.7

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_