Re: [html-tests] Make all parameters to initMessageEvent() optional except the first one (#5044)

Notifying @Ms2ger, @ayg, @jdm, @jgraham, @zcorpan, and @zqzhang. *([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/5044#issuecomment-284194408

Received on Sunday, 5 March 2017 00:04:08 UTC