Re: [service-workers-tests] service workers: test FetchEvent.clientId is never null (#5372)

Notifying @ehsan, @mattto, and @mkruisselbrink. *([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/5372#issuecomment-291667720

Received on Tuesday, 4 April 2017 23:12:33 UTC