Hugo produces Unexpected Goldmark (CommonMark) Behavior

[HenrySkup]

v0.74.3/extended darwin/amd64

Hi, This is in reference to this thread.

Basically: Hugo is introducing a bug into Goldmark's HTML rendering when it encounters custom HTML elements (e.x. <custom-element>...</custom-element>) within markdown -- especially multi-line instances.

---

When my markdown is:

# Title 

<custom-element>
    <div>This will be "slotted" into the custom element.</div>
</custom-element>

the resulting HTML is :

<h1>Title</h1>
<p><custom-element></p>
  <div>This will be "slotted" into the custom element.</div>
</custom-element>

---

As per the spec, the expected behavior should be :

<custom-element>
  <div>This will be "slotted" into the custom element.</div>
</custom-element>

Note the lack of any <p> tags.

N.B.
As per the spec, if the MD was <custom-element></custom-element> (one line) the resulting HTML should be wrapped in <p> tags.

[bep]

Hugo is introducing a bug into Goldmark's HTML rendering

Why is this a Hugo and not a Goldmark problem?

[jmooring]

I tested with direct usage of Goldmark, and it produced the expected results.

[jmooring]

Interesting find. Removing the hyphen from the custom element name resolves the problem. For example, this works:

<customelement>
Foo
</customelement>

while this does not:

<custom-element>
Foo
</custom-element>

Per the HTML spec, custom elements must contain a hyphen in the name.

[schindld]

I just updated to hugo v0.80.0, and it's fixed!

[jmooring]

Confirmed that this is fixed. @HenrySkup, please close this issue.

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.