Update snippet to reflect HTTPS usage instead of HTTP

templates/front/snippets/node.html

@@ -1,3 +1,3 @@
-<div class="highlight"><pre><span></span><span class="kd">var</span> <span class="nx">http</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;http&#39;</span><span class="p">);</span>
-<span class="nx">http</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s2">&quot;{{ ping_url }}&quot;</span><span class="p">);</span>
+<div class="highlight"><pre><span></span><span class="kd">var</span> <span class="nx">http</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;https&#39;</span><span class="p">);</span>
+<span class="nx">https</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s2">&quot;{{ ping_url }}&quot;</span><span class="p">);</span>
 </pre></div>