
PUPPETEER_TMP_DIR - defines the directory to be used by Puppeteer for creating temporary files.

PUPPETEER_SKIP_CHROMIUM_DOWNLOAD - do not download bundled Chromium during installation step.HTTP_PROXY, HTTPS_PROXY, NO_PROXY - defines HTTP proxy settings that are used to download and run the browser.If Puppeteer doesn't find them in the environment during the installation step, a lowercased variant of these variables will be used from the npm config. Puppeteer looks for certain environment variables to aid its operations. For a version of Puppeteer purely for connection, see puppeteer-core. When you install Puppeteer, it downloads a recent version of Chromium (~170MB Mac, ~282MB Linux, ~280MB Win) that is guaranteed to work with the API (customizable through Environment Variables).
