cloudflare/workers-sdk miniflare@4.20250803.1

on GitHub

Patch Changes

• #10273 1479fd0 Thanks @edmundhung! - fix: support WebSocket proxying to workerd

  The dev registry proxy server now correctly handles WebSocket upgrade requests and
  tunnels bidirectional frames between the workerd processes. Previously,
  handshakes would fail due to missing upgrade logic.

• #10281 05c5b28 Thanks @edmundhung! - fix: enable HTTPS support when proxying to workerd

  The Miniflare dev-registry proxy previously assumed workerd would always use HTTP,
  so enabling https on miniflare might caused connection failures in some setups.

  This ensures proxying works whether the option is enabled or not.

• #10142 e3d9703 Thanks @edmundhung! - fix: support mf.getBindings() when dev registry is enabled

  Fixes a deadlock when using bindings from mf.getBindings() with the dev registry enabled. The deadlock happened because the runtime attempted to resolve a worker address via the loopback server, which was blocked by the Node.js thread waiting on the same runtime.

  Address lookup has been moved to a proxy running in a worker thread to avoid blocking the main thread.