cloudflare/workers-sdk miniflare@4.20251109.1

on GitHub

Patch Changes

• #11202 305ffb3 Thanks @petebacondarwin! - Make Miniflare inspector proxy more resilient to selecting a free port

  We have seen some test flakes when there are a lot of Miniflare instances running in parallel.
  This appears to be that there is a small chance that a port becomes unavailable between checking if it is free and using it.

• #11231 46ccf0e Thanks @connyay! - Fix WebSocket proxy timeout by disabling Node.js HTTP timeouts

  The dev registry proxy server was experiencing connection timeouts around
  60-90 seconds for long-lived WebSocket connections. This was caused by Node.js's
  headersTimeout (defaults to min(60s, requestTimeout)) which is checked periodically
  by connectionsCheckingInterval (defaults to 30s).

  When proxying WebSocket connections, the HTTP server's headers timeout was
  still active on the underlying socket, causing ERR_HTTP_REQUEST_TIMEOUT errors
  to be thrown and both client and server sockets to be destroyed.

  Setting both headersTimeout: 0 and requestTimeout: 0 in createServer options
  disables timeout enforcement, allowing WebSocket connections to remain open
  indefinitely as needed.