Implementation:Microsoft Playwright Utils Bundle Package Lock

Knowledge Sources	Microsoft_Playwright
Domains	Dependency Management, Build Tooling
Last Updated	2026-02-12 00:00 GMT

Overview

The package lock file for the utils bundle within playwright-core, pinning dependencies for commonly used utility libraries that are vendored into the distribution.

Description

This lockfile (npm lockfile version 3) belongs to the utils-bundle package (version 0.0.1) located at packages/playwright-core/bundles/utils/. It captures the exact resolved versions and integrity hashes for a curated set of utility libraries that Playwright bundles internally rather than declaring as runtime peer dependencies. This approach allows playwright-core to ship as a self-contained package without requiring users to install transitive utility dependencies.

Key Dependencies

• graceful-fs (4.2.10) -- Drop-in replacement for Node's fs module with retry/queue logic.
• ws (8.17.1) -- WebSocket client/server implementation used for browser communication.
• https-proxy-agent (7.0.6) / socks-proxy-agent (8.0.5) -- HTTP/SOCKS proxy support.
• commander (^13.0.0) -- CLI argument parsing.
• debug (^4.3.4) -- Debug logging utility.
• mime (^3.0.0) -- MIME type detection.
• pngjs (6.0.0) / jpeg-js (0.4.4) -- Image encoding/decoding for screenshots.
• retry (0.12.0) -- Operation retry logic (used by the lockfile module and elsewhere).
• signal-exit (3.0.7) -- Cross-platform process exit handler.
• dotenv (^16.4.5) -- Environment variable loading.
• yaml (^2.6.0) -- YAML parsing.
• colors (1.4.0), progress (2.0.3) -- Terminal output formatting.
• diff (^7.0.0) -- Text diff computation.
• minimatch (^3.1.2) -- Glob pattern matching.
• open (8.4.0) -- Open URLs/files in the default application.
• proxy-from-env (1.1.0) -- Proxy URL resolution from environment variables.

Usage

This lockfile is consumed during the playwright-core bundle build process. When utility dependencies need updating, run npm install from within the packages/playwright-core/bundles/utils/ directory. The resolved packages are then bundled into the playwright-core distribution.

Code Reference

Source Location

• Repository: Microsoft_Playwright
• File: packages/playwright-core/bundles/utils/package-lock.json

Related Pages

• Environment:Microsoft_Playwright_Node_Runtime_Environment