message: ci(Karma): Use CHROME_BIN if defined
  The Docker image uses its specific version
diff: @@ -8,7 +8,9 @@ var sourcePath = path.resolve(__dirname, './dist')
  if (!process.env.NODE_ENV) process.env.NODE_ENV = 'test'
  +if (!process.env.CHROME_BIN) {
  process.env.CHROME_BIN = require('puppeteer').executablePath()
  +}
  module.exports = function init (config) {
  config.set({
  