Rank, 14 days: 123 on the Claude Code sheet
10 people reported
All time, since Oct 1, including 9 thumbs-up on GitHub.
GitHub binary upload 415
“Claude Code Web should allow binary uploads to GitHub's attachment endpoint, so agents can attach artifacts generated during a session to PRs or comments.”
Is this your bug? What gets counted gets fixed. Pile on.
Paste this into your agent. It files your report, with your error and version.
I hit this bug: rapsheet.dev/sheets/claude-code/issues/435/file Follow it to file my report. Show me the text before you send.
No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends
GitHub attachment uploads fail with 415 in Claude Code Web. Binary POSTs to uploads.github.com/user-attachments/assets with Content-Type application/octet-stream go through Anthropic's proxy, which requires JSON bodies, so the request never reaches GitHub.
Is this your bug?
File my report- Where
- Claude Code Web proxy
- Error text
Request bodies must declare Content-Type: application/json.- How bad
- Breaks a normal workflow.
Original reports1, newest first
- Claude Code Web GitHub proxy blocks binary attachment uploads#98729