Mike West

> Thanks, seems like Chrome never fixed http://w3c-test.org/fetch/nosniff/stylesheet.html. @mikewest what's up with that? I didn't implement `nosniff` for CSS because I thought we were strictly checking `text/css` types. It looks...

@annevk & @shannonbooth, FYI. Mind taking a look?

> You can't create new content in WPT `/interfaces/`. That directory is managed automatically. It should probably be tested as part of other `html.idl` APIs, though perhaps it can be...

> > It seems like we don't have tests for `` and `` without `href` attributes. From a quick skim I suspect this might not be implemented correctly. > >...

For `MessageEvent` (and `ExtendableMessageEvent`), I think I'm on board with throwing instead of trying to mint an origin from a string. That has pretty good security properties, and seems like...