plugins/markdown/test/data/sanitizing/images.html

<body>
<p>
<img src="/url" alt="foo" title="title" /></p>
<p>
<img src="train.jpg" alt="foo bar" title="train &amp; tracks" /></p>
<p>
<img src="/url2" alt="foo barurl" /></p>
<p>
<img src="/url" alt="" /></p>
<p>![foo]</p>
<p>
!<a href="/url" title="title">foo</a>
</p>
</body>