1119745 - Custom element, created with document.registerElement has no prototype

Status: RESOLVED DUPLICATE of bug 1081037

(Core :: DOM: Core & HTML, defect)

Description

[Adam Kecskes]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0
Build ID: 20150108004006

Steps to reproduce:

I've enabled dom.webcomponents.enabled, and then tried to run this code:

var foo = document.registerElement('x-foo', {
    prototype: Object.create(HTMLElement.prototype)
});

// undefined in Firefox
console.log(foo.prototype);


Actual results:

For some reason, foo.prototype is undefined.


Expected results:

The custom element should have a prototype, like HTMLElement.
It works in chrome, or with the webcomponent.js fallback.

Comment 1

[:Gijs (out for now; he/him)]

This works on Nightly (38). I imagine it's been fixed elsewhere, just not sure where.