data from some
object outside of Ember's observer system (for example
<code>document.cookie</code>). You can use the
<a href="https://api.emberjs.com/ember/2.17/classes/@ember%2Fobject%2Fcomputed/methods/property?anchor=volatile">volatile</a>
function to set the property into a non-cached mode causing the headers to
be recomputed with every request.</p>
<div class="filename javascript"><div class="ribbon"></div><span>app/adapters/application.js</span><pre class="language-javascript line-numbers"><code class