<tr><td>TCP</td><td>Check that a socket to the backend can be created: e.g. "are you up"</td><td></td></tr>
<tr><td>OPTIONS</td><td>Send an <code>HTTP OPTIONS</code> request to the backend</td><td>*</td></tr>
<tr><td>HEAD</td><td>Send an <code>HTTP HEAD</code> request to the backend</td><td>*</td></tr>
-<!--
<tr><td>GET</td><td>Send an <code>HTTP GET</code> request to the backend</td></tr>
+<!--
<tr><td>CPING</td><td><strong>AJP only</strong> Do <code>CPING/CPONG</code> check</td></tr>
<tr><td>PROVIDER</td><td>Name of <code>provider</code> to be used to check health</td></tr>
-->