Re: [webdriver-tests] Ensure that finalizers for webdriver tests always work on a valid window. (#5363)

Notifying @AutomatedTester, @andreastt, @lukeis, and @shs96c. *([Learn how reviewing works](https://github.com/w3c/web-platform-tests/blob/master/README.md#test-review).)*

View on GitHub: https://github.com/w3c/web-platform-tests/pull/5363#issuecomment-291546040

Received on Tuesday, 4 April 2017 15:58:02 UTC