v2.0.0-rc.1

Breaking Changes

• Changed the priority of bindings, so it matches Miniflare 1. The new order (from lowest to highest priority) is:
  1. Variables from wrangler.toml [vars]
  2. Variables from .env files
  3. WASM module bindings (--wasm, [wasm_modules])
  4. Custom bindings
• The result of dispatchScheduled will no longer include undefined if a module scheduled handler doesn't return a value

Features

• Added a custom Jest test environment for Miniflare. This allows you to run unit tests in the Miniflare sandbox, with isolated storage for each test. Install jest-environment-miniflare@next to get started and see 🤹 Jest Environment for more details.
• Added support for running multiple workers in the same Miniflare instance. See 🔌 Multiple Workers for more details.
• Added support for the Durable Object script_name option. See 📌 Durable Objects for more details.
• Added support for the new __STATIC_CONTENT_MANIFEST text module for using Workers Sites in modules mode
• Throw an error when a Durable Object fetch handler doesn't return a Response
• Added queueMicrotask to the sandbox
• Added the Miniflare#getCaches method for accessing the global caches outside workers
• Added back the sourceMap option to Miniflare
• Changed the default location for the update-check and cf.json files to inside node_modules
• Switched the CRON validation and scheduling package from node-cron to cron-schedule. This improves error messages for invalid CRON expressions, and removes a transitive dependency on moment-timezone, reducing the installation size by a further 5MB.

Fixes

• Allow any close code when a client closes a WebSocket connection. Closes issue #86, thanks @TimTinkers.
• Wait for worker response before opening WebSocket in client, closes issue #88, thanks @TimTinkers.
• Pass the --env flag to wrangler build when --wrangler-env is set for type = "webpack"/"rust" builds
• Set correct Host header with --upstream flag set
• Fixed memory leak in HTMLRewriter when passing non-ArrayBuffer(View) chunks
• Marked @miniflare/core and @miniflare/storage-memory as dependencies of @miniflare/durable-objects
• Removed ServiceWorkerGlobalScope#dispose() from global scope