[mtrunkat]

We have found 2 related issues:

- Sometimes Promise returned by page.close() never resolves so it's good to call Promise.race() on that together with a Promise that resolves after some timeout period (30s?)

- Sometimes Chrome process doesn't get killed so we are also manually killing remaining Chrome process after browser.close()

[dschnurr]

Good tips. How are you killing remaining zombie Chrome processes? Just polling the processlist and running "kill" commands?