Puppeteer is a NodeJS API grafted onto Chrome Headless. It's perfect for doing client testing - low overhead, small size, and based on the latest Chromium release so it works pretty much like Chrome.

Within Dockerfile:

FROM cucloudcollab/node-puppeteer

Hints for running this container are in https://github.com/GoogleChrome/puppeteer/blob/master/docs/troubleshooting.md#running-puppeteer-in-docker In particular, we have found the --cap-add=SYS_ADMIN options needs to be specified on the Docker run command line. Otherwise you get sandbox errors.