How does KrakenJS propagate timeout errors through its middleware chain when clients disconnect?

KrakenJS Timeout Error Propagation

KrakenJS, built on Express 4.x, inherits timeout handling through app.set('timeout', ms), but the framework's middleware architecture raises questions about error propagation during client disconnections. When a client aborts a request, the server continues executing middleware unless explicitly configured to handle cancellation signals.

The core uncertainty lies in whether timeout errors generated by Express's default behavior are properly caught by KrakenJS's error handling middleware or if they bypass the standard error flow. This becomes critical for applications requiring graceful degradation or resource cleanup during connection loss.

Documentation gaps exist regarding how the deprecated framework manages these scenarios, particularly when combining route-level timeouts with global error handlers. The lack of active maintenance means developers must reverse-engineer behavior rather than rely on official guidance.

What specific patterns should be implemented to ensure timeout errors are consistently handled across all middleware components in KrakenJS applications?