Files
coder/coderd
Kyle Carberry e34162945a fix(coderd/x/chatd): normalize OAuth2 token type to canonical Bearer case (#23516)
Linear's MCP server (`mcp.linear.app`) returns `token_type="bearer"`
(lowercase) in its OAuth2 token response but rejects requests that use
the lowercase form in the `Authorization` header. RFC 6750 says the
scheme is case-insensitive, but Linear enforces capital-B `Bearer`.

Confirmed by running the actual Linear MCP OAuth flow end-to-end:
- `Authorization: Bearer <token>` → **42 tools, works**
- `Authorization: bearer <token>` → **401 invalid_token**

This is a one-line fix: normalize any case variant of `bearer` to
`Bearer` before building the `Authorization` header, matching the
behavior of the mcp-go library's own OAuth handler.
2026-03-24 14:32:06 -04:00
..