Are you seeing this error during a or a local installation ?
# Old (causes the error) puppeteer_download_host=https://your-mirror.com # New (correct) puppeteer_download_base_url=https://your-mirror.com Use code with caution. 2. Update Environment Variables npm err puppeteer_download_host is not a valid npm option
In older versions of Puppeteer, developers used PUPPETEER_DOWNLOAD_HOST to specify a mirror or internal server for downloading the Chromium binary. As Puppeteer transitioned to "Chrome for Testing" and shifted its internal download logic, it moved toward a more explicit naming convention: Are you seeing this error during a or a local installation
Starting with Puppeteer v20, the configuration system was overhauled. The variable PUPPETEER_DOWNLOAD_HOST has been and replaced with PUPPETEER_DOWNLOAD_BASE_URL . Why This Happens npm err puppeteer_download_host is not a valid npm option