title: How to suppress javascript errors when xmlhttp.status != 200
body: <p>In my Google Chrome console I keep receiving errors when the xmlhttp status does not result in 200. For example, in certain cases I intentionally set the header of my PHP files to 500 so in javascript I can display the error and avoid anything that requires that PHP file. Since I have my own error handler for this, is there anyway to suppress the default error?</p>
  
  <p>Error Example:</p>
  
  <pre><code>POST http://localhost/mama/cgi-bin/pages/Module-Install.php 500 (Internal server error) 
  </code></pre>