build(deps-dev): bump miniflare from 4.20260205.0 to 4.20260212.0

[dependabot]

Bumps miniflare from 4.20260205.0 to 4.20260212.0.

Release notes

Sourced from miniflare's releases.

miniflare@4.20260212.0

Minor Changes

• #12431 7aaa2a5 Thanks @​emily-shen! - Add ability to search KV keys by prefix

  The UI and list keys API now lets you search KV keys by prefix.

  This is an experimental WIP feature.

Patch Changes

• #12541 f7fa326 Thanks @​dependabot! - Update dependencies of "miniflare", "wrangler"

  The following dependency versions have been updated:

  Dependency	From	To
  workerd	1.20260210.0	1.20260212.0

• #12025 d06ad09 Thanks @​petebacondarwin! - Fix potential EBADF error when restarting workerd process

  Previously, when the workerd process was restarted (e.g., via setOptions() or Vite server restart), the stdio pipes from the previous process were not explicitly destroyed. This could lead to EBADF (Bad File Descriptor) errors during spawn on some systems.

  The Runtime#dispose() method now explicitly destroys all stdio streams (stdin, stdout, stderr, and the control pipe) before killing the process to ensure file descriptors are properly released.

miniflare@4.20260210.0

Minor Changes

• #12469 2d90127 Thanks @​petebacondarwin! - Add environment variables to control cf.json fetching behavior

  You can now use environment variables to control how Miniflare handles the Request.cf object caching:

  • CLOUDFLARE_CF_FETCH_ENABLED - Set to "false" to disable fetching entirely and use fallback data. No node_modules/.mf/cf.json file will be created. Defaults to "true".
  • CLOUDFLARE_CF_FETCH_PATH - Set to a custom path to use a different location for caching the cf.json file instead of the default node_modules/.mf/cf.json.

  This is particularly useful for non-JavaScript projects (like Rust or Go Workers) that don't want a node_modules directory created automatically.

  Example:

  # Disable cf fetching for all projects
  export CLOUDFLARE_CF_FETCH_ENABLED=false
  npx wrangler dev
  Or use a custom cache location
  export CLOUDFLARE_CF_FETCH_PATH=/tmp/.cf-cache.json
  npx wrangler dev

• #12391 ce9dc01 Thanks @​emily-shen! - Serve the local explorer UI from Miniflare

... (truncated)

Changelog

Sourced from miniflare's changelog.

4.20260212.0

Minor Changes

• #12431 7aaa2a5 Thanks @​emily-shen! - Add ability to search KV keys by prefix

  The UI and list keys API now lets you search KV keys by prefix.

  This is an experimental WIP feature.

Patch Changes

• #12541 f7fa326 Thanks @​dependabot! - Update dependencies of "miniflare", "wrangler"

  The following dependency versions have been updated:

  Dependency	From	To
  workerd	1.20260210.0	1.20260212.0

• #12025 d06ad09 Thanks @​petebacondarwin! - Fix potential EBADF error when restarting workerd process

  Previously, when the workerd process was restarted (e.g., via setOptions() or Vite server restart), the stdio pipes from the previous process were not explicitly destroyed. This could lead to EBADF (Bad File Descriptor) errors during spawn on some systems.

  The Runtime#dispose() method now explicitly destroys all stdio streams (stdin, stdout, stderr, and the control pipe) before killing the process to ensure file descriptors are properly released.

4.20260210.0

Minor Changes

• #12469 2d90127 Thanks @​petebacondarwin! - Add environment variables to control cf.json fetching behavior

  You can now use environment variables to control how Miniflare handles the Request.cf object caching:

  • CLOUDFLARE_CF_FETCH_ENABLED - Set to "false" to disable fetching entirely and use fallback data. No node_modules/.mf/cf.json file will be created. Defaults to "true".
  • CLOUDFLARE_CF_FETCH_PATH - Set to a custom path to use a different location for caching the cf.json file instead of the default node_modules/.mf/cf.json.

  This is particularly useful for non-JavaScript projects (like Rust or Go Workers) that don't want a node_modules directory created automatically.

  Example:

  # Disable cf fetching for all projects
  export CLOUDFLARE_CF_FETCH_ENABLED=false
  npx wrangler dev
  Or use a custom cache location
  export CLOUDFLARE_CF_FETCH_PATH=/tmp/.cf-cache.json
  npx wrangler dev

... (truncated)

Commits

• 0ebc50d Version Packages (#12508)
• f7fa326 Bump the workerd-and-workers-types group with 2 updates (#12541)
• d06ad09 Fix potential EBADF error when restarting workerd process in Miniflare (#12025)
• 1d5f66c refactor: use ci-info for CI detection (#12504)
• 7aaa2a5 [explorer] add KV prefix search (#12431)
• 04eac7d Version Packages (#12427)
• bf8df0c Bump the workerd-and-workers-types group with 2 updates (#12502)
• d636d6a chore(deps): bump the workerd-and-workers-types group with 2 updates (#12485)
• 2d90127 [miniflare] Add environment variables to control cf.json fetching (#12469)
• d49dcb5 minor changes in miniflare build scripts (#12448)
• Additional commits viewable in compare view

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