Rich Text Token - Why does more than one html element trigger html placed outside of container on landing pages?

[NestoJosa]

Hello again Marketo Nation,

We have found some strange behavior with Rich Text Tokens, that we would like to get a better understanding of, and that might be of interest to you too! 😀

More specifically, we found that including more than one html element, in the rich text token's value, triggers the output of html placed outside of its container, on a landing page.

Scenario #1

The landing page markup:

<div 
  id="mktoHook-Hero__headings"
  class="mktoText Hero__headings ..."
  mktoName="Hero__headings">
    <p class="...">{{my.CON TokenName}}</p>
    <h1 class="...">{{...}}</h1>
</div>

The rich text token:

<p>foo</p>

The output on landing page (note the exclusion of any additional p-tag around 'foo'):

<div 
  id="mktoHook-Hero__headings"
  class="mktoText Hero__headings ...">
    <p class="Hero__preHeading">foo</p>
</div>

So far so good, nothing strange in scenario #1.

But if we add another paragraph to the rich text token, strange things happen...

Scenario #2

The rich text token:

<p>foo</p>
<p>bar</p>

The output on landing page (note the inclusion of p-tags and the placement of the tokens-value outside of container):

<div 
  id="mktoHook-Hero__headings"
  class="mktoText Hero__headings ...">
    <p class="Hero__preHeading"></p>
    <p>foo</p>
    <p>bar</p>
    <p></p>
</div>

The mystery

Adding more than one html-tag (in the examples, it's another p-tag) triggers:

- The inclusion of html tags

- The tokens value is placed outside of the container

- A third trailing p-tag (the last p-tag in the above example)

So, why does more than one html element trigger html placed outside of container on landing pages?

I will post a similar question to marketo-support, and I will make sure to update this nation-post when they have replied, for future Googlers.

This question is specifically related to landing pages. But we did find a similar issue on the emails:
https://nation.marketo.com/t5/Product-Discussions/Rich-Text-Token-Why-does-more-than-one-html-elemen...

Note:

- The root block elements settings are set to none, for 'Email / Snippet Editor' and 'Landing Page Editor'.

Any help/clarification would be much appreciated!

Best,
ernie