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<h1 id="special-attributes"><a class="header" href="#special-attributes">Special Attributes</a></h1>
<p>While most attributes are simply passed on to the HTML, some have special behaviors.</p>
<h2 id="the-html-escape-hatch"><a class="header" href="#the-html-escape-hatch">The HTML Escape Hatch</a></h2>
<p>If you're working with pre-rendered assets, output from templates, or output from a JS library, then you might want to pass HTML directly instead of going through Dioxus. In these instances, reach for <code>dangerous_inner_html</code>.</p>
<p>For example, shipping a markdown-to-Dioxus converter might significantly bloat your final application size. Instead, you'll want to pre-render your markdown to HTML and then include the HTML directly in your output. We use this approach for the <a href="https://dioxuslabs.com">Dioxus homepage</a>:</p>
<pre><pre class="playground"><code class="language-rust edition2018">
<span class="boring">#![allow(unused)]
</span><span class="boring">fn main() {
</span>// this should come from a trusted source
let contents = &quot;live &lt;b&gt;dangerously&lt;/b&gt;&quot;;
cx.render(rsx! {
div {
dangerous_inner_html: &quot;{contents}&quot;,
}
})
<span class="boring">}
</span></code></pre></pre>
<blockquote>
<p>Note! This attribute is called &quot;dangerous_inner_html&quot; because it is <strong>dangerous</strong> to pass it data you don't trust. If you're not careful, you can easily expose <a href="https://en.wikipedia.org/wiki/Cross-site_scripting">cross-site scripting (XSS)</a> attacks to your users.</p>
<p>If you're handling untrusted input, make sure to sanitize your HTML before passing it into <code>dangerous_inner_html</code> – or just pass it to a Text Element to escape any HTML tags.</p>
</blockquote>
<h2 id="boolean-attributes"><a class="header" href="#boolean-attributes">Boolean Attributes</a></h2>
<p>Most attributes, when rendered, will be rendered exactly as the input you provided. However, some attributes are considered &quot;boolean&quot; attributes and just their presence determines whether they affect the output. For these attributes, a provided value of <code>&quot;false&quot;</code> will cause them to be removed from the target element.</p>
<p>So this RSX wouldn't actually render the <code>hidden</code> attribute:</p>
<pre><pre class="playground"><code class="language-rust edition2018">
<span class="boring">#![allow(unused)]
</span><span class="boring">fn main() {
</span>cx.render(rsx! {
div {
hidden: &quot;false&quot;,
&quot;hello&quot;
}
})
<span class="boring">}
</span></code></pre></pre>
<pre><code class="language-html">&lt;div&gt;hello&lt;/div&gt;
</code></pre>
<p>Not all attributes work like this however. <em>Only the following attributes</em> have this behavior:</p>
<ul>
<li><code>allowfullscreen</code></li>
<li><code>allowpaymentrequest</code></li>
<li><code>async</code></li>
<li><code>autofocus</code></li>
<li><code>autoplay</code></li>
<li><code>checked</code></li>
<li><code>controls</code></li>
<li><code>default</code></li>
<li><code>defer</code></li>
<li><code>disabled</code></li>
<li><code>formnovalidate</code></li>
<li><code>hidden</code></li>
<li><code>ismap</code></li>
<li><code>itemscope</code></li>
<li><code>loop</code></li>
<li><code>multiple</code></li>
<li><code>muted</code></li>
<li><code>nomodule</code></li>
<li><code>novalidate</code></li>
<li><code>open</code></li>
<li><code>playsinline</code></li>
<li><code>readonly</code></li>
<li><code>required</code></li>
<li><code>reversed</code></li>
<li><code>selected</code></li>
<li><code>truespeed</code></li>
</ul>
<p>For any other attributes, a value of <code>&quot;false&quot;</code> will be sent directly to the DOM.</p>
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