Puppeteer_patched Download_host Page

Master Guide: Understanding and Configuring PUPPETEER_DOWNLOAD_HOST

Even if the download succeeds, Puppeteer might fail to launch on Linux servers if system dependencies (like libX11 or nss ) are missing. If you are using a mirror like npmmirror, remember that it only fixes the , not the runtime requirements 0.5.2. Skipping the Download Entirely

: In a CI/CD pipeline, downloading Chromium from the internet on every build is inefficient. Pointing to a local network host can drastically reduce build times. How to Configure PUPPETEER_DOWNLOAD_HOST puppeteer_download_host

PUPPETEER_DOWNLOAD_HOST is an environment variable used by the Puppeteer installation script to determine the base URL prefix for downloading Chromium 0.5.1 .

If you already have Chromium or Chrome installed on your machine and don't want Puppeteer to download it at all, you can use PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true . In your code, you would then specify the executablePath manually: javascript Pointing to a local network host can drastically

To make the setting persistent for a specific project, add it to your .npmrc file in the root directory:

When working with , the popular Node.js library for browser automation, the initial installation often poses a challenge: downloading the bundled Chromium browser. By default, Puppeteer attempts to fetch Chromium from Google's servers. However, network restrictions, corporate firewalls, or regional connectivity issues (like the "Great Firewall" of China) can cause this process to hang or fail. In your code, you would then specify the

const browser = await puppeteer.launch({ executablePath: '/usr/bin/google-chrome' }); Use code with caution. Summary Table Description PUPPETEER_DOWNLOAD_HOST Function Overwrites the URL prefix for Chromium downloads 0.5.1 Popular Mirror