TYPO3 Core

Is this issue still present on version 9.5.14 or 10.4.0-dev?

I tried the following test:

1) Use the "full" preset for RTE; please note that this includes the EXT:rte_ckeditor/Configuration/RTE/Editor/Processing.yaml file that contains:

processing:
  HTMLparser_db:
    removeTags: [center, font, link, meta, o:p, sdfield, strike, style, title, u]

2) On a standard text I tried to add (using the source code view):

<p>lorem <strike>aaaa</strike><center>bbbbb</center><font>ggggggg</font></p>

<ol>
    <li>lorem <strike>aaaa</strike><center>bbbbb</center><font>ggggggg</font></li>
    <li>ipsum <strike>aaaa</strike><center>bbbbb</center><font>ggggggg</font></li>
</ol>

<p>lorem <strike>aaaa</strike><center>bbbbb</center><font>ggggggg</font></p>

<ul>
    <li>lorem <strike>aaaa</strike><center>bbbbb</center><font>ggggggg</font></li>
    <li>ipsum <strike>aaaa</strike><center>bbbbb</center><font>ggggggg</font></li>
</ul>

Results: after saving the final result is:¶

<p>lorem <s>aaaa</s></p>

<p>bbbbb</p>

<p>ggggggg</p>

<p>&nbsp;</p>

<ol>
    <li>lorem <s>aaaa</s>

    <p>bbbbb</p>
    ggggggg</li>
    <li>ipsum <s>aaaa</s>
    <p>bbbbb</p>
    ggggggg</li>
</ol>

<p>lorem <s>aaaa</s></p>

<p>bbbbb</p>

<p>ggggggg</p>

<p>&nbsp;</p>

<ul>
    <li>lorem <s>aaaa</s>

    <p>bbbbb</p>
    ggggggg</li>
    <li>ipsum <s>aaaa</s>
    <p>bbbbb</p>
    ggggggg</li>
</ul>

• <strike> tag has been converted to <s>
• <center> tag has been converted to <p>
• <font> tag has been removed
• it also added a couple of <p>&nbsp;</p> but I think it is another issue

Is if sufficient to consider this issue resolved or a different test is necessary? Am I missing something?

Closing this issue due to lack on feedback. If you feel this is the wrong decision, let me know, and I will re-open the ticket.