go-oidc's RemoteKeySet puts the JWKS endpoint's response body in its error for non-200 and malformed 200 responses; Verify wrapped it and the callback logged it. verifyError now keeps only a fixed category, plus the expiry for an expired token. A test with a sentinel JWKS body checks it reaches neither the returned error, the response nor the logs. Addresses feature-review finding F03-03 on PR #24. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>