When should ga('require', 'linkid') be called in a single page application?
<p>I am currently developing a single page application in Ember and I am trying to implement Google Analytics <a href="https://support.google.com/analytics/answer/2558867?hl=en" rel="nofollow">Enhanced Link Attribution</a>. (See my fork of <a href="https://github.com/dehrax/ember-cli-google-analytics/tree/patch-1" rel="nofollow">ember-cli-google-analytics</a>)</p>

<p>When am I supposed to call <code>ga('require', 'linkid)</code>? Is it on page load (in <code>&lt;head&gt;</code>), or is it on route change?</p>