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Encourage always-escaping ampersand character. #11988

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Encourage always-escaping ampersand character. #11988

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Expand Up @@ -1159,6 +1159,9 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
<pre><code class="html">&lt;a href="?bill&amp;ted">Bill and Ted&lt;/a> &lt;!-- &amp;ted is ok, since it's not a named character reference --></code></pre>
<pre><code class="html">&lt;a href="?art&amp;amp;copy">Art and Copy&lt;/a> &lt;!-- the &amp; has to be escaped, since &amp;copy <em>is</em> a named character reference --></code></pre>

<p>It's best to always escape the "&amp;" character as "&amp;amp;", which avoids ambiguities like
these when other syntax errors are present.</p>

</div>
</dd>

Expand Down Expand Up @@ -156399,6 +156402,7 @@ INSERT INTERFACES HERE
Debanjana Sarkar, <!-- debanjana-a11y on GitHub -->
Debi Orton,
Delan Azabani, <!-- delan on GitHub -->
Dennis Snell, <!-- dmsnell on GitHub -->
Derek Featherstone,
Derek Guenther,
Devarshi Pant,
Expand Down Expand Up @@ -156660,6 +156664,7 @@ INSERT INTERFACES HERE
Jon Gibbins,
Jon Jensen,
Jon Perlow,
Jon Surrell, <!-- sirreal on GitHub -->
Jonas Sicking,
Jonathan Cook,
Jonathan Kew,
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