Content blocks cannot be extended for pages

[tylersticka]

Given a hypothetical test.hbs layout that extends blank.hbs:

{{#extend "blank"}}
  {{#content "body" mode="append"}}
    world
  {{/content}}
{{/extend}}

And a test.hbs page that contains the following:

---
title: Test
layout: test

---

Hello

I would expect the page output to contain Hello world. Instead, it is simply Hello.

This is not limited to the "body" block or any particular mode. It's as if everything within {{#content}} attributes is ignored for extended page layouts.

[gerardo-rodriguez]

I'm gonna see if I can figure this out. 😬

[tylersticka]

Updated description. I originally thought I also couldn't append to head, but that wasn't the case... it was just stripping out invalid stuff.

[tylersticka]

@mrgerardorodriguez I think I just figured out what the deal is, and it's not a builder issue... it's a front-end issue.

Going to close this and open a new issue on the correct repo.