HTML tags for article

Here we analyze, which types of HTML tags are allowed inside the content field of Article type objects. One should expect that a Note, i.e.

Represents a short written work typically less than a single paragraph in length.

see here, should not contain headings h1-h6 or embedded media, e.g. img.

Sanitizing fields is desired behavior as seen in Section B.10 of ActivityPub.

Details

akkomagotosocialhollomastodonmisskeymitrapleromasharkey

content	content	Example
<b>bold</b>	<b>bold</b>
<strong>strong</strong>	<strong>strong</strong>
<i>italic</i>	<i>italic</i>
<i>italic with.</i> See <a href="https://codeberg.org/helge/funfedidev/issues/142">Issue 142</a>	<i>italic with.</i> See <a href="https://codeberg.org/helge/funfedidev/issues/142">Issue 142</a>
<em>emphasis</em>	<em>emphasis</em>
<del>old</del><ins>new</ins>	<del>old</del>new
<s>stricken</s>	stricken
<mark>mark</mark>	mark
find <var>x</var> (a variable)	find x (a variable)
<ol><li>ordered</li></ol>	<ol><li>ordered</li></ol>
<ul><li>unordered</li></ul>	<ul><li>unordered</li></ul>
<h1>h1</h1>	h1
<h2>h2</h2>	h2
<h3>h3</h3>	h3
<h4>h4</h4>	h4
<h5>h5</h5>	h5
<h1>h1</h1><h2>h2</h2>	h1h2
<code>code</code>	<code>code</code>
<pre>pre</pre>	<pre>pre</pre>
<blockquote>blockquote</blockquote>	<blockquote>blockquote</blockquote>
line<br/>break	line<br/>break
<p>paragraph</p>	<p>paragraph</p>
<small>small</small>	<small>small</small>
<sup>sup</sup>	<sup>sup</sup>
<sub>sub</sub>	<sub>sub</sub>
<a href='https://funfedi.dev'>funfedi</a>	<a href="https://funfedi.dev">funfedi</a>
<script>alert('hi');</script>	alert('hi');
<img src="http://pasture-one-actor/assets/nlnet.png" alt="NLNET Logo" />	<img src="http://pasture-one-actor/assets/nlnet.png" alt="NLNET Logo"/>
wbr: Fernstraßen<wbr />bau<wbr />privat<wbr />finanzierungs<wbr />gesetz	wbr: Fernstraßenbauprivatfinanzierungsgesetz
Audio <audio controls src="http://pasture-one-actor/assets/cow_moo.mp3"></audio>	Audio

content	content	Example
<b>bold</b>	<b>bold</b>
<strong>strong</strong>	<strong>strong</strong>
<i>italic</i>	<i>italic</i>
<i>italic with.</i> See <a href="https://codeberg.org/helge/funfedidev/issues/142">Issue 142</a>	<i>italic with.</i> See <a href="https://codeberg.org/helge/funfedidev/issues/142" rel="nofollow noreferrer noopener" target="_blank">Issue 142</a>
<em>emphasis</em>	<em>emphasis</em>
<del>old</del><ins>new</ins>	<del>old</del><ins>new</ins>
<s>stricken</s>	<s>stricken</s>
<mark>mark</mark>	<mark>mark</mark>
find <var>x</var> (a variable)	find <var>x</var> (a variable)
<ol><li>ordered</li></ol>	<ol><li>ordered</li></ol>
<ul><li>unordered</li></ul>	<ul><li>unordered</li></ul>
<h1>h1</h1>	<h1>h1</h1>
<h2>h2</h2>	<h2>h2</h2>
<h3>h3</h3>	<h3>h3</h3>
<h4>h4</h4>	<h4>h4</h4>
<h5>h5</h5>	<h5>h5</h5>
<h1>h1</h1><h2>h2</h2>	<h1>h1</h1><h2>h2</h2>
<code>code</code>	<code>code</code>
<pre>pre</pre>	<pre>pre</pre>
<blockquote>blockquote</blockquote>	<blockquote>blockquote</blockquote>
line<br/>break	line<br>break
<p>paragraph</p>	<p>paragraph</p>
<small>small</small>	<small>small</small>
<sup>sup</sup>	<sup>sup</sup>
<sub>sub</sub>	<sub>sub</sub>
<a href='https://funfedi.dev'>funfedi</a>	<a href="https://funfedi.dev" rel="nofollow noreferrer noopener" target="_blank">funfedi</a>
<script>alert('hi');</script>
<img src="http://pasture-one-actor/assets/nlnet.png" alt="NLNET Logo" />
wbr: Fernstraßen<wbr />bau<wbr />privat<wbr />finanzierungs<wbr />gesetz	wbr: Fernstraßen<wbr>bau<wbr>privat<wbr>finanzierungs<wbr>gesetz
Audio <audio controls src="http://pasture-one-actor/assets/cow_moo.mp3"></audio>	Audio

content	content	Example
<b>bold</b>	<b>bold</b>
<strong>strong</strong>	<strong>strong</strong>
<i>italic</i>	<i>italic</i>
<i>italic with.</i> See <a href="https://codeberg.org/helge/funfedidev/issues/142">Issue 142</a>	<i>italic with.</i> See <a href="https://codeberg.org/helge/funfedidev/issues/142">Issue 142</a>
<em>emphasis</em>	<em>emphasis</em>
<del>old</del><ins>new</ins>	<del>old</del><ins>new</ins>
<s>stricken</s>	<s>stricken</s>
<mark>mark</mark>	<mark>mark</mark>
find <var>x</var> (a variable)	find <var>x</var> (a variable)
<ol><li>ordered</li></ol>	<ol><li>ordered</li></ol>
<ul><li>unordered</li></ul>	<ul><li>unordered</li></ul>
<h1>h1</h1>	<h1>h1</h1>
<h2>h2</h2>	<h2>h2</h2>
<h3>h3</h3>	<h3>h3</h3>
<h4>h4</h4>	<h4>h4</h4>
<h5>h5</h5>	<h5>h5</h5>
<h1>h1</h1><h2>h2</h2>	<h1>h1</h1><h2>h2</h2>
<code>code</code>	<code>code</code>
<pre>pre</pre>	<pre>pre</pre>
<blockquote>blockquote</blockquote>	<blockquote>blockquote</blockquote>
line<br/>break	line<br/>break
<p>paragraph</p>	<p>paragraph</p>
<small>small</small>	<small>small</small>
<sup>sup</sup>	<sup>sup</sup>
<sub>sub</sub>	<sub>sub</sub>
<a href='https://funfedi.dev'>funfedi</a>	<a href='https://funfedi.dev'>funfedi</a>
<script>alert('hi');</script>	<script>alert('hi');</script>
<img src="http://pasture-one-actor/assets/nlnet.png" alt="NLNET Logo" />	<img src="http://pasture-one-actor/assets/nlnet.png" alt="NLNET Logo" />
wbr: Fernstraßen<wbr />bau<wbr />privat<wbr />finanzierungs<wbr />gesetz	wbr: Fernstraßen<wbr />bau<wbr />privat<wbr />finanzierungs<wbr />gesetz
Audio <audio controls src="http://pasture-one-actor/assets/cow_moo.mp3"></audio>	Audio <audio controls src="http://pasture-one-actor/assets/cow_moo.mp3"></audio>

content	content	Example
<b>bold</b>	<p>http://pasture-one-actor/actor/Jehr9AeWTKA</p>
<strong>strong</strong>	<p>http://pasture-one-actor/actor/ijqUz-44MFk</p>
<i>italic</i>	<p>http://pasture-one-actor/actor/lCAEXqEeUBc</p>
<i>italic with.</i> See <a href="https://codeberg.org/helge/funfedidev/issues/142">Issue 142</a>	<p>http://pasture-one-actor/actor/7aNCeCqvd60</p>
<em>emphasis</em>	<p>http://pasture-one-actor/actor/B-7sHYN5B9o</p>
<del>old</del><ins>new</ins>	<p>http://pasture-one-actor/actor/Y1KZoVo5O50</p>
<s>stricken</s>	<p>http://pasture-one-actor/actor/tpp6FQdMC8Q</p>
<mark>mark</mark>	<p>http://pasture-one-actor/actor/m4qujmnVh9I</p>
find <var>x</var> (a variable)	<p>http://pasture-one-actor/actor/_5MyR03C0Nc</p>
<ol><li>ordered</li></ol>	<p>http://pasture-one-actor/actor/J3HDKVnTaL0</p>
<ul><li>unordered</li></ul>	<p>http://pasture-one-actor/actor/KSIkjpHYTtE</p>
<h1>h1</h1>	<p>http://pasture-one-actor/actor/zd5ECsf1Cuc</p>
<h2>h2</h2>	<p>http://pasture-one-actor/actor/KxBNK34QcSo</p>
<h3>h3</h3>	<p>http://pasture-one-actor/actor/mnInr8fMy2E</p>
<h4>h4</h4>	<p>http://pasture-one-actor/actor/02OZG22KaKs</p>
<h5>h5</h5>	<p>http://pasture-one-actor/actor/HomgGvDlU2Y</p>
<h1>h1</h1><h2>h2</h2>	<p>http://pasture-one-actor/actor/9TQhFEAUyEk</p>
<code>code</code>	<p>http://pasture-one-actor/actor/d-Fv8635TGw</p>
<pre>pre</pre>	<p>http://pasture-one-actor/actor/JXOUopSkfPk</p>
<blockquote>blockquote</blockquote>	<p>http://pasture-one-actor/actor/T9aWwTTV540</p>
line<br/>break	<p>http://pasture-one-actor/actor/sDzg6H-aHrY</p>
<p>paragraph</p>	<p>http://pasture-one-actor/actor/TZaAKKV59YU</p>
<small>small</small>	<p>http://pasture-one-actor/actor/rY2X1tXW0sU</p>
<sup>sup</sup>	<p>http://pasture-one-actor/actor/1Pn-VUKeXw4</p>
<sub>sub</sub>	<p>http://pasture-one-actor/actor/ilU8QSf6Mog</p>
<a href='https://funfedi.dev'>funfedi</a>	<p>http://pasture-one-actor/actor/QQl-O_0CY4M</p>
<script>alert('hi');</script>	<p>http://pasture-one-actor/actor/AAI-it_Ww-c</p>
<img src="http://pasture-one-actor/assets/nlnet.png" alt="NLNET Logo" />	<p>http://pasture-one-actor/actor/yZFFFz2pxH8</p>
wbr: Fernstraßen<wbr />bau<wbr />privat<wbr />finanzierungs<wbr />gesetz	<p>http://pasture-one-actor/actor/TLq2rwXGoJA</p>
Audio <audio controls src="http://pasture-one-actor/assets/cow_moo.mp3"></audio>	<p>http://pasture-one-actor/actor/OZpU-48EWC4</p>

content	text	Example
<b>bold</b>	bold
<strong>strong</strong>	strong
<i>italic</i>	<i>italic</i>
<i>italic with.</i> See <a href="https://codeberg.org/helge/funfedidev/issues/142">Issue 142</a>	<i>italic with.</i> See [Issue 142](https://codeberg.org/helge/funfedidev/issues/142)
<em>emphasis</em>	<i>emphasis</i>
<del>old</del><ins>new</ins>	~~old~~new
<s>stricken</s>	~~stricken~~
<mark>mark</mark>	mark
find <var>x</var> (a variable)	find x (a variable)
<ol><li>ordered</li></ol>	ordered
<ul><li>unordered</li></ul>	unordered
<h1>h1</h1>	【h1】
<h2>h2</h2>	h2
<h3>h3</h3>	h3
<h4>h4</h4>	h4
<h5>h5</h5>	h5
<h1>h1</h1><h2>h2</h2>	【h1】 h2
<code>code</code>	`code`
<pre>pre</pre>	pre
<blockquote>blockquote</blockquote>	> blockquote
line<br/>break	line break
<p>paragraph</p>	paragraph
<small>small</small>	<small>small</small>
<sup>sup</sup>	sup
<sub>sub</sub>	sub
<a href='https://funfedi.dev'>funfedi</a>	[funfedi](https://funfedi.dev)
<script>alert('hi');</script>	alert('hi');
<img src="http://pasture-one-actor/assets/nlnet.png" alt="NLNET Logo" />	-
wbr: Fernstraßen<wbr />bau<wbr />privat<wbr />finanzierungs<wbr />gesetz	wbr: Fernstraßenbauprivatfinanzierungsgesetz
Audio <audio controls src="http://pasture-one-actor/assets/cow_moo.mp3"></audio>	Audio

content	content	Example
<b>bold</b>	<b>bold</b><p><a href="http://pasture-one-actor/actor/nFW7B8GsqJE" rel="noopener">http://pasture-one-actor/actor/nFW7B8GsqJE</a></p>
<strong>strong</strong>	<strong>strong</strong><p><a href="http://pasture-one-actor/actor/JEGVo4Wy3AY" rel="noopener">http://pasture-one-actor/actor/JEGVo4Wy3AY</a></p>
<i>italic</i>	<i>italic</i><p><a href="http://pasture-one-actor/actor/2vzSkAUhRZs" rel="noopener">http://pasture-one-actor/actor/2vzSkAUhRZs</a></p>
<i>italic with.</i> See <a href="https://codeberg.org/helge/funfedidev/issues/142">Issue 142</a>	<i>italic with.</i> See <a href="https://codeberg.org/helge/funfedidev/issues/142" rel="noopener">Issue 142</a><p><a href="http://pasture-one-actor/actor/-zIn3hIDeoM" rel="noopener">http://pasture-one-actor/actor/-zIn3hIDeoM</a></p>
<em>emphasis</em>	<em>emphasis</em><p><a href="http://pasture-one-actor/actor/l4lUQ-Avn18" rel="noopener">http://pasture-one-actor/actor/l4lUQ-Avn18</a></p>
<del>old</del><ins>new</ins>	<del>old</del><ins>new</ins><p><a href="http://pasture-one-actor/actor/ikk5uxdaTo0" rel="noopener">http://pasture-one-actor/actor/ikk5uxdaTo0</a></p>
<s>stricken</s>	<s>stricken</s><p><a href="http://pasture-one-actor/actor/VymhL5shuyQ" rel="noopener">http://pasture-one-actor/actor/VymhL5shuyQ</a></p>
<mark>mark</mark>	<mark>mark</mark><p><a href="http://pasture-one-actor/actor/7dUYLdMnwec" rel="noopener">http://pasture-one-actor/actor/7dUYLdMnwec</a></p>
find <var>x</var> (a variable)	find <var>x</var> (a variable)<p><a href="http://pasture-one-actor/actor/tQjE5ctMCDQ" rel="noopener">http://pasture-one-actor/actor/tQjE5ctMCDQ</a></p>
<ol><li>ordered</li></ol>	<ol><li>ordered</li></ol><p><a href="http://pasture-one-actor/actor/ktOOdZ_nWGk" rel="noopener">http://pasture-one-actor/actor/ktOOdZ_nWGk</a></p>
<ul><li>unordered</li></ul>	<ul><li>unordered</li></ul><p><a href="http://pasture-one-actor/actor/KAYHXvcNt8A" rel="noopener">http://pasture-one-actor/actor/KAYHXvcNt8A</a></p>
<h1>h1</h1>	<h1>h1</h1><p><a href="http://pasture-one-actor/actor/9q0zex2pa0w" rel="noopener">http://pasture-one-actor/actor/9q0zex2pa0w</a></p>
<h2>h2</h2>	<h2>h2</h2><p><a href="http://pasture-one-actor/actor/YCivFsPxGQ0" rel="noopener">http://pasture-one-actor/actor/YCivFsPxGQ0</a></p>
<h3>h3</h3>	<h3>h3</h3><p><a href="http://pasture-one-actor/actor/0d7uEg4DSDA" rel="noopener">http://pasture-one-actor/actor/0d7uEg4DSDA</a></p>
<h4>h4</h4>	<h4>h4</h4><p><a href="http://pasture-one-actor/actor/0B6g37t6YhQ" rel="noopener">http://pasture-one-actor/actor/0B6g37t6YhQ</a></p>
<h5>h5</h5>	<h5>h5</h5><p><a href="http://pasture-one-actor/actor/yTN9C04r0aQ" rel="noopener">http://pasture-one-actor/actor/yTN9C04r0aQ</a></p>
<h1>h1</h1><h2>h2</h2>	<h1>h1</h1><h2>h2</h2><p><a href="http://pasture-one-actor/actor/OVo8Mge-Jjk" rel="noopener">http://pasture-one-actor/actor/OVo8Mge-Jjk</a></p>
<code>code</code>	<code>code</code><p><a href="http://pasture-one-actor/actor/3I6rt0bb4vA" rel="noopener">http://pasture-one-actor/actor/3I6rt0bb4vA</a></p>
<pre>pre</pre>	<pre>pre</pre><p><a href="http://pasture-one-actor/actor/R7QoYgSwXCQ" rel="noopener">http://pasture-one-actor/actor/R7QoYgSwXCQ</a></p>
<blockquote>blockquote</blockquote>	<blockquote>blockquote</blockquote><p><a href="http://pasture-one-actor/actor/ft5clqAMhTo" rel="noopener">http://pasture-one-actor/actor/ft5clqAMhTo</a></p>
line<br/>break	line<br>break<p><a href="http://pasture-one-actor/actor/rpN1z4uDEbY" rel="noopener">http://pasture-one-actor/actor/rpN1z4uDEbY</a></p>
<p>paragraph</p>	<p>paragraph</p><p><a href="http://pasture-one-actor/actor/7ZOM3VVgmro" rel="noopener">http://pasture-one-actor/actor/7ZOM3VVgmro</a></p>
<small>small</small>	<small>small</small><p><a href="http://pasture-one-actor/actor/cGMu6kvnjdw" rel="noopener">http://pasture-one-actor/actor/cGMu6kvnjdw</a></p>
<sup>sup</sup>	<sup>sup</sup><p><a href="http://pasture-one-actor/actor/7FTiI3x1zxs" rel="noopener">http://pasture-one-actor/actor/7FTiI3x1zxs</a></p>
<sub>sub</sub>	<sub>sub</sub><p><a href="http://pasture-one-actor/actor/l-pFiqzw_4g" rel="noopener">http://pasture-one-actor/actor/l-pFiqzw_4g</a></p>
<a href='https://funfedi.dev'>funfedi</a>	<a href="https://funfedi.dev" rel="noopener">funfedi</a><p><a href="http://pasture-one-actor/actor/aEJFJu4kHS4" rel="noopener">http://pasture-one-actor/actor/aEJFJu4kHS4</a></p>
<script>alert('hi');</script>	<p><a href="http://pasture-one-actor/actor/Y9krq0GAaq8" rel="noopener">http://pasture-one-actor/actor/Y9krq0GAaq8</a></p>
<img src="http://pasture-one-actor/assets/nlnet.png" alt="NLNET Logo" />	http://pasture-one-actor/assets/nlnet.png<p><a href="http://pasture-one-actor/actor/KNZHz6PIH7M" rel="noopener">http://pasture-one-actor/actor/KNZHz6PIH7M</a></p>
wbr: Fernstraßen<wbr />bau<wbr />privat<wbr />finanzierungs<wbr />gesetz	wbr: Fernstraßen<wbr>bau<wbr>privat<wbr>finanzierungs<wbr>gesetz<p><a href="http://pasture-one-actor/actor/pAn3We1klp8" rel="noopener">http://pasture-one-actor/actor/pAn3We1klp8</a></p>
Audio <audio controls src="http://pasture-one-actor/assets/cow_moo.mp3"></audio>	Audio <p><a href="http://pasture-one-actor/actor/MgAwPZ_7sL0" rel="noopener">http://pasture-one-actor/actor/MgAwPZ_7sL0</a></p>

content	content	Example
<b>bold</b>	<b>bold</b>
<strong>strong</strong>	<strong>strong</strong>
<i>italic</i>	<i>italic</i>
<i>italic with.</i> See <a href="https://codeberg.org/helge/funfedidev/issues/142">Issue 142</a>	<i>italic with.</i> See <a href="https://codeberg.org/helge/funfedidev/issues/142">Issue 142</a>
<em>emphasis</em>	<em>emphasis</em>
<del>old</del><ins>new</ins>	<del>old</del><ins>new</ins>
<s>stricken</s>	<s>stricken</s>
<mark>mark</mark>	mark
find <var>x</var> (a variable)	find <var>x</var> (a variable)
<ol><li>ordered</li></ol>	<ol><li>ordered</li></ol>
<ul><li>unordered</li></ul>	<ul><li>unordered</li></ul>
<h1>h1</h1>	h1
<h2>h2</h2>	h2
<h3>h3</h3>	h3
<h4>h4</h4>	h4
<h5>h5</h5>	h5
<h1>h1</h1><h2>h2</h2>	h1h2
<code>code</code>	<code>code</code>
<pre>pre</pre>	<pre>pre</pre>
<blockquote>blockquote</blockquote>	<blockquote>blockquote</blockquote>
line<br/>break	line<br/>break
<p>paragraph</p>	<p>paragraph</p>
<small>small</small>	<small>small</small>
<sup>sup</sup>	<sup>sup</sup>
<sub>sub</sub>	<sub>sub</sub>
<a href='https://funfedi.dev'>funfedi</a>	<a href="https://funfedi.dev">funfedi</a>
<script>alert('hi');</script>	alert('hi');
<img src="http://pasture-one-actor/assets/nlnet.png" alt="NLNET Logo" />	<img src="http://pasture-one-actor/assets/nlnet.png" alt="NLNET Logo"/>
wbr: Fernstraßen<wbr />bau<wbr />privat<wbr />finanzierungs<wbr />gesetz	wbr: Fernstraßen<wbr/>bau<wbr/>privat<wbr/>finanzierungs<wbr/>gesetz
Audio <audio controls src="http://pasture-one-actor/assets/cow_moo.mp3"></audio>	Audio

content	content	Example
<b>bold</b>	<p><span>bold</span></p>
<strong>strong</strong>	<p><span>strong</span></p>
<i>italic</i>	<p><span>italic</span></p>
<i>italic with.</i> See <a href="https://codeberg.org/helge/funfedidev/issues/142">Issue 142</a>	<p><span>italic with.</span><span> See </span><a rel="nofollow noopener noreferrer" target="_blank" href="https://codeberg.org/helge/funfedidev/issues/142"><span>Issue 142</span></a></p>
<em>emphasis</em>	<p><span>emphasis</span></p>
<del>old</del><ins>new</ins>	<p><span>~~old~~</span><span>new</span></p>
<s>stricken</s>	<p><span>~~stricken~~</span></p>
<mark>mark</mark>	<p><span>mark</span></p>
find <var>x</var> (a variable)	<p><span>find x (a variable)</span></p>
<ol><li>ordered</li></ol>	<p><span>ordered</span></p>
<ul><li>unordered</li></ul>	<p><span>unordered</span></p>
<h1>h1</h1>	<p><span>【h1】</span></p>
<h2>h2</h2>	<p><span>h2</span></p>
<h3>h3</h3>	<p><span>h3</span></p>
<h4>h4</h4>	<p><span>h4</span></p>
<h5>h5</h5>	<p><span>h5</span></p>
<h1>h1</h1><h2>h2</h2>	<p><span>【h1】</span><span><br></span><span>h2</span></p>
<code>code</code>	<p><code>code</code></p>
<pre>pre</pre>	<p><span>pre</span></p>
<blockquote>blockquote</blockquote>	<p><blockquote><span>blockquote</span></blockquote></p>
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