Major Description
in esi plugin, when the node list is retrieved from cache with the option
-packed-node-support, the contents between <!-esi and --> will output twice.
the test case is:
<html>
<head></head>
<body>
<!--esi
<p>
<esi:include src="/data/data.htm"/>
</p>
-->
</body>
</html>
the body of URL: /data/data.htm is "haha". the output will be:
<html>
<head></head>
<body>
<p>
haha
</p>
<p>
haha
</p>
</body>
</html>