Error in open.connection(x, "rb") : Couldn't connect to server
<p>I receive the following error when attempting to use the <code>rvest</code> package in R:</p>

<blockquote>
  <p>Error in open.connection(x, "rb") : Couldn't connect to server</p>
</blockquote>

<p>What is causing this error message?  The function is shown below:</p>

<pre><code>htmlpage &lt;- read_html("http://forecast.weather.gov/MapClick.php?lat=42.27925753000045&amp;lon=-71.41616624299962#.V17UH-IrKHs")
</code></pre>