Open an html page in a default browser from an add-in
<p>I would like to insert a hyperlink to the task pane of my add-in, and I want this link to open <code>support.html</code> page in a default browser.</p>

<pre><code>&lt;a href="https://example.com/support.html" target="_blank"&gt;Support&lt;/a&gt;
</code></pre>

<p>However, the above code opens <code>support.html</code> page inside the task pane. Users may not know how to go back to the main page of the add-in. </p>

<p>Does anyone know how to open the page in a default browser of users? (By the way, is it recommended to launch something outside the add-in? If not, what's the common UX design for the help page?)</p>