<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">2018-04-13 18:17 GMT+02:00 Brian Grinstead <span dir="ltr"><<a href="mailto:bgrinstead@mozilla.com" target="_blank">bgrinstead@mozilla.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">
</span>where toolbarbutton-badged is registered to a class that extends the moz-button class. This is not allowed by the spec, but I’m curious if it’s something that’s worth considering (or if it’s already been discussed).</blockquote></div></div><div class="gmail_extra"><br></div><div class="gmail_extra">My possibly wrong understanding is that this isn't allowed in order to keep things simple and avoid previous pitfalls that killed XBL2. It does make Custom Elements simpler but also less powerful. Perhaps we can just lift that restriction for chrome.<br></div></div>