ruvnet/ruflo · error

String(err instanceof Error ? err.message : err)

Error message

String(err instanceof Error ? err.message : err)

What it means

Diagnostic in startLocalLLMProxy: expression that normalizes a caught upstream/proxy error into its message string (err.message when Error, otherwise the value itself) so the proxy can log or return the failure reason for a proxied browser-intent LLM request.

Source

Thrown at v3/@claude-flow/cli/src/mcp-tools/browser-intent-tools.ts:247

          method: req.method,
          headers: {
            'content-type': 'application/json',
            // The real key is injected here, server-side, and nowhere else —
            // whatever Authorization header the page-context request carried
            // (the placeholder) is discarded.
            authorization: `Bearer ${real.apiKey}`,
          },
          body: body.length > 0 ? body : undefined,
        })
          .then(async (upstream) => {
            const text = await upstream.text();
            res.writeHead(upstream.status, {
              'content-type': upstream.headers.get('content-type') || 'application/json',
            });
            res.end(text);
          })
          .catch((err: unknown) => {
            res.writeHead(502, { 'content-type': 'application/json' });
            res.end(JSON.stringify({ error: { message: String(err instanceof Error ? err.message : err) } }));
          });
      });
    });
    server.on('error', reject);
    server.listen(0, '127.0.0.1', () => {
      const addr = server.address();
      const port = typeof addr === 'object' && addr ? addr.port : 0;
      resolve({
        url: `http://127.0.0.1:${port}`,
        close: () => {
          try { server.close(); } catch { /* best-effort */ }
        },
      });
    });
  });
}

View on GitHub (pinned to fa13ee4ad6)

Solutions

1. Propagate the real underlying error message instead of a placeholder; log the full stack for diagnosis.

When it happens

Trigger: Thrown at v3/@claude-flow/cli/src/mcp-tools/browser-intent-tools.ts:247 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of ruvnet/ruflo@fa13ee4ad6 (2026-08-18). Data as JSON: /api/errors/31737e0604ca4805. Report an issue: GitHub.