If you're going to submit a link to your own blog to HN, have the courtesy to:<p><pre><code> use a permalink to the post in question
delete your contentless test posts
make sure the links to the primary subject of your post work
</code></pre>
In your case it would also be good to explain why the hell you'd want to use a convoluted 'ESI' system instead of a straightforward eTags-based caching reverse proxy or even static generation.