 20.44 27.29 10.6l37.1-37.1c59.28-59.26 59.28-155.7 0-214.96z"/>
      </svg></a> </h2>
<section aria-labelledby="toc_enabling-at-runtime">
<p>When using the Ember.js canary or beta builds you can enable a "<strong>present</strong> but <strong>disabled</strong>"
feature by setting its flag value to <code>true</code> before your application boots:</p>
<div class="filename javascript"><div class="ribbon"></div><span>config/environment.js</span><pre class="language-javascript line-numbers"><code class="javascr