Test cases for HTML escaping in annotation quotes:
<b>Hello World</b>
<i>Hello World</i>
<img src="https://media.giphy.com/media/OUjcFvpzMzlGU/giphy.gif">
<audio src="http://developer.mozilla.org/@api/deki/files/2926/=AudioTest_(1).ogg" autoplay>
Your browser does not support the <code>audio</code> element.
</audio>
<style>body { display: none }</style>
<script>alert('foo')</script>
<img src="https://media.giphy.com/media/hDSy8w6rGHeTe/giphy.gif" onclick="alert('foo')">
<img src="https://media.giphy.com/media/hDSy8w6rGHeTe/giphy.gif" ng-click="alert('foo')">