View Express JS response headers?
<p>If I need to see the incoming request headers I use: <code>req.headers</code>.</p>

<p>I need to see the list of all headers that will be in the response.</p>

<p><code>res.headers</code> is <code>undefined</code>.</p>

<p>I know I can set response headers: <code>res.header('', '')</code>.</p>

<p>How do I view the response headers..?</p>