title: zurb foundation 5.4 joyride - control expose cover
body: <p>Can someone explain to me how to control the expose-cover for zurb foundation? 
  If I understand correctly the expose-cover is the grey background overlay that shows up behind the joyride modal.</p>
  
  <p>I have a couple tips not bound to anything and then i have some bound to some ids using the data-id attribute. I expect that when i get to the tips with data-id the expose cover disappears. Instead, it remains.</p>
  
  <p>What am I doing wrong?</p>
  
  <pre><code>&lt;ol class="joyride-list" data-joyride &gt;
      &lt;li data-button="Next" data-options="prev_button:false;"&gt;&lt;p&gt;&lt;/p&gt;
      &lt;/li&gt;
  
      &lt;li data-button="Next" data-prev-text="Prev"&gt;
          &lt;p&gt;&lt;/p&gt;
      &lt;/li&gt;
  
      &lt;li data-button="Next" data-prev-text="Prev"&gt;
          &lt;p&gt;&lt;/p&gt;
      &lt;/li&gt;
  
      &lt;li data-id="next_article_btn" data-button="Next" data-prev-text="Prev" data-options="expose:false; modal:false;"&gt;
          &lt;p&gt;&lt;/p&gt;
      &lt;/li&gt;
  
      &lt;li data-id="prev_article_btn" data-button="Next" data-prev-text="Prev" data-options="expose:false; modal:false;"&gt;
          &lt;p&gt;&lt;/p&gt;
      &lt;/li&gt;
  
      &lt;li data-id="to_top_btn" data-button="Finish" data-prev-text="Prev" data-options="expose:false;"&gt;
          &lt;p&gt;&lt;/p&gt;
      &lt;/li&gt;
  &lt;/ol&gt;
  </code></pre>