See puppeteer.launch on how executable path is inferred. PUPPETEER_CHROMIUM_REVISION - specify a certain version of Chromium you'd like Puppeteer to use.Defaults to /.local-chromium, where is Puppeteer's package root. PUPPETEER_DOWNLOAD_PATH - overwrite the path for the downloads folder.Note: this includes protocol and might even include path prefix. PUPPETEER_DOWNLOAD_HOST - overwrite URL prefix that is used to download Chromium.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).
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