<p dir="auto"><code class="notranslate">EventTarget</code> has not been fully ported over to use webidl. <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="1235849435" data-permission-text="Title is private" data-url="https://github.com/denoland/deno/issues/14601" data-hovercard-type="pull_request" data-hovercard-url="/denoland/deno/pull/14601/hovercard" href="https://github.com/denoland/deno/pull/14601">#14601</a> started the process with <code class="notranslate">addEventListener()</code>.</p>
<p dir="auto">Various minor issues arise from not doing this: <a href="https://wpt.fyi/results/dom/events/AddEventListenerOptions-signal.any.html?label=master&amp;product=deno" rel="nofollow">https://wpt.fyi/results/dom/events/AddEventListenerOptions-signal.any.html?label=master&amp;product=deno</a></p>