Re: [xhr-tests] XMLHttpRequest: update Document serialization test (#5123)

Notifying @Manishearth, @caitp, @emilio, @hallvors, @ibelem, @jdm, @jungkees, @kangxu, @mathiasbynens, @ronkorving, and @wisniewskit. *([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/5123#issuecomment-286113616

Received on Monday, 13 March 2017 13:56:11 UTC