 <span class="mdzsyn-symbol">url</span> ;<span class="mdzsyn-symbol">args</span>))
  (<span class="mdzsyn-coresym">try</span> (<span class="mdzsyn-coresym">file/close</span> <span class="mdzsyn-symbol">f</span>) ([<span class="mdzsyn-symbol">err</span>] <span class="mdzsyn-constant">nil</span>))
  <span class="mdzsyn-symbol">res</span>)

(<span class="mdzsyn-coresym">defn-</span> <span class="mdzsyn-symbol">check-http-url</span>
  [<span class="mdzsyn-symbol">path</span>]
  (<span class="mdzsyn-coresym">if<