ation to process the request.
</p>

<div class="example">
<div class="caption">Example. Pushing asset files</div>
<pre><code>paths:
  &quot;/&quot;:
    mruby.handler: |
      Proc.new do |env|
        push_paths = []
        # push css and js when request is to dir root or HTML
        if /(\/|\.html)\z/.match(env[&quot;PATH_INFO&quot;])
          push_paths &lt;&lt; [&quot;/css/style.css&quot;, &quot;style&quot;]
          push_paths &lt;&lt; [&quot;/js/app.js&quot;, &quot;script&quot;]
        end
      