chore(travis): explicitly define node version in .travis.yml (#1069)
chore(travis): explicitly define node version in .travis.yml (#1069)


puppeteer/puppeteer,puppeteer/puppeteer,puppeteer/puppeteer,GoogleChrome/puppeteer,brutalcrozt/puppeteer,puppeteer/puppeteer,GoogleChrome/puppeteer,brutalcrozt/puppeteer,GoogleChrome/puppeteer