skip headings

There is not h2 or h3 tag in the tooltip template.

https://git.drupalcode.org/project/tooltip_taxonomy/-/blob/2.1.1/templat...

I don't know where the tags you mentioned come from, maybe come from your theme?

Also there is a field setting to specify what tags are allowed for the tooltip.

I think this is referring to the tooltip inheriting the formatting of the text in which the taxonomy term is present. For example if the node text is bold (ie formatted as <strong>) and contains the term my term:
A sentence with my term in it.

then the tooltip text for 'my term' will be bold as well. Likewise for h2 and other heading levels.

For the <strong> example I added some CSS resets (also resets some other styles):

.tx-tooltip .tx-tooltip-text {
  font-style: normal;
  font-weight: normal;
  letter-spacing: normal;
  line-break: auto;
  text-decoration: none;
  text-shadow: none;
  text-transform: none;
  white-space: normal;
  word-break: normal;
  word-spacing: normal;
  word-wrap: normal;
}

Indeed, tooltips are added to header tags like h1, h2, etc, inside the CKEditor can look odd.
I added a field to the Conditional form settings that allows users to add excluded tags, for which tooltips are not applied.

@mingsong Please review the MR

Thanks @Sviatoslav.

I manually tested the feature branch with Drupal 11.2.4.

Here are the result:
The original content.

<p>
    I use <strong>Drupal</strong> a lots.&nbsp;
</p>
<p>
    Drupal is my favourite CMS.
</p>
<p>
    &nbsp;
</p>

The rendered result after applying the tooltip.

<div class="text-content clearfix field field--name-body field--type-text-with-summary field--label-hidden field__item"><p>I use <strong>
  Drupal
  
     Drupal is a very popular 
  CMS
  
     CMS stands for content management system.
  

.
  

</strong> a lots.&nbsp;</p><p>
  Drupal
  
     Drupal is a very popular 
  CMS
  
     CMS stands for content management system.
  

.
  

 is my favourite 
  CMS
  
     CMS stands for content management system.
  

.</p><p>&nbsp;</p></div>

The tooltip taxonomy terms:
1. CMS

2. Drupal

Sorry, my bad. I forgot to add the '' into the allowed tag for the text format setting.

After adding it, it works as exptected.

Thanks @Sviatoslav.

It is a brilliant ideal to introduce the excluded tags, which make it more flexible.

Thanks @Christopher for the suggestion on Comment #4. In a situation where a bold tag for a taxonomy term still need, we can use the CSS to prevent unwanted style inherited from the parent element.

So I take those two solutions together.

I think we can confidently release this change.

Appreciate all your works on this module.

It will be patched with the new release.