an>(<span class="ruby-operator">&amp;</span><span class="ruby-identifier">:blank?</span>)&#x000A;328: &#x000A;329:       <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">loader</span>&#x000A;330:         <span class="ruby-comment cmt"># `htmls` actually contains URLs; convert to an HTML/JS block</span>&#x000A;331:         <span class="ruby-identifier">urls</span>  = <span class="ruby-identifier">htmls</span>.<span class="ruby-identifier">dup</span>.<span class="ruby-identifier">flatten<